Academic literature on the topic 'Ion-selective electrode (ISE)'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Ion-selective electrode (ISE).'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Ion-selective electrode (ISE)"
1
Meng, Yanqin, Libin Yang, Qing Xu, Yafei Guo, and Tianlong Deng. "Mean Activity Coefficients of NaNO3 and the Mixing Ion-Interaction Parameters in the Ternary System (NaNO3 + CsNO3 + H2O) at 298.15 K by EMF Method." Journal of Chemistry 2022 (March 26, 2022): 1–8. http://dx.doi.org/10.1155/2022/9385577.
Full textAbstract:
Ion-selective electrodes directly respond to the activity of target ions without destroying the existing form of the original electrolyte, so ion-selective electrodes have been widely used in various fields. Mean activity coefficient of NaNO3 in the ternary system (NaNO3 + CsNO3 + H2O) at 298.15 K was measured by electromotive force (EMF) with the cell: Na+ ion-selective electrode (Na-ISE)|NaNO3 (mA), CsNO3 (mB)|NO3- ion-selective electrode (NO3-ISE) with total ionic strengths from 0.01 to 4.5 mol·kg-1 at different ionic strength fractions (0, 0.1, 0.2, 0.4, 0.6, and 0.8). The results showed that the Na-ISE and NO3-ISE have a good Nernst response, and the mean activity coefficients of NaNO3 are obtained via the Nernst equation. Based on the data of mean activity coefficients of NaNO3, the relationship diagrams of activity coefficients of NaNO3 against ion strengths in the ternary system were demonstrated, and the Pitzer mixing ion-interaction parameters θ Na , Cs and ψ Na , Cs , N O 3 were obtained.
2
Thomas, J. D. R. "Devices for ion-sensing and pX measurements." Pure and Applied Chemistry 73, no. 1 (2001): 31–38. http://dx.doi.org/10.1351/pac200173010031.
Full textAbstract:
Thirty years of ion-selective electrode (ISE) researches at the University of Wales, Cardiff are outlined. They summarize developments of PVC membrane ISEs, first for calcium and then of other systems, including the improved calcium dioctyl-phenyl-phosphate sensor for calcium and those of ion-exchangers, polyalkoxylates, and cyclic and acyclic polyethers for various anions and cations. Electrodes based on polyalkoxylates have interesting properties toward the polyethers themselves. Some ISE failure causes are discussed. Attention is given to applications, including analysis of wash liquors and nonionic surfactants, biomedical roles, and studies of sulfate-reducing bacteria activity. Coated-wire ISEs and ion-selective field effect transistors (ISFETs) are mentioned, as are other modes of ISE deployment. The review concludes with some fundamental features of PVC electrode membranes as determined by radiotracer, applied potential, and potentiostatic approaches.
3
Saefurohman, Asep, Buchari, and Indra Noviandri. "La(III) Ion Selective Electrode with PTFE Membrane Containing Tributyl Phosphate Ionophore." Key Engineering Materials 874 (January 2021): 50–57. http://dx.doi.org/10.4028/www.scientific.net/kem.874.50.
Full textAbstract:
Methods for the quantitative determination of lanthanum that have been developed are generally spectroscopic methods such as inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma atomic emission spectrometry (ICP-AES), and X-ray fluorescence spectrometry, which has relatively high operational costs. The feasibility of the potentiometric method using ion selective electrode (ISE) as an alternative method for lanthanum (III) determination needs to be studied because it is simple, easy to use, and has high sensitivity and selectivity. In this study, we developed ion selective electrode using PTFE membrane impregnated with tributyl phosphate (TBP) as ionophore. TBP is commonly used as a complexing agent for rare-earth ions in supported liquid membrane (SLM) separation process. We found that the compound can be used as an ionophore for ISE. This study aims to make a lanthanum ion selective electrode (III) (La-ISE) which has a Nernstian response. The parameters studied in the construction of this electrode were the effects of PTFE membrane immersion ionophore solution, ionic strength adjuster (ISA), and the inner solution composition. The performance parameters studied for the La-ISE were linear range, response time, detection limit, selectivity, and the lifetime of the electrode. Construction of the electrode begins with the preparation of the PTFE membrane as the main component. PTFE membrane was impregnated for 12 hours in the TBP solution having a concentration of 0.25 M or 0.50 M in kerosene. After it was dried, the membrane was attached to the end of the electrode tube with adhesive. Then, the electrode was filled with an internal solution containing a mixture of KCl 10-3 M with La (III) 10-3 M. The internal reference electrode was Ag/AgCl electrode. Before it was used, the electrode was soaked in a solution of La (III) 10-3 M for 12 hours.The effect of TBP concentration on the electrode performance was studied using two concentrations of TBP: 0.25 M and 0.50 M. The calibration curves obtained using both electrodes have good linearity. Nernst factor obtained from both electrodes is similar, although the Nernst factor obtained with an electrode having 0.50 M TBP closer to the theoretical value.ISA used in the measurement was KNO3. The effect of ISA on the performance of the electrode was studied using electrodes containing TBP with the concentration of 0.25 M or 0.50 M. The concentration of KNO3 used in this study was 0.01 M and 0.10 M. The Nernst factors obtained with electrodes containing 0.25 M TBP, in general, higher than those obtained with electrodes containing 0.50 M TBP in the same ISA. Electrode containing 0.50 M TBP resulted in the Nernst factor close to theoretical value when a measurement was conducted in 0.10 M KNO3.
4
Urbanowicz, Marcin, Kamila Sadowska, Dorota G. Pijanowska, Radosław Pomećko, and Maria Bocheńska. "Potentiometric Solid-Contact Ion-Selective Electrode for Determination of Thiocyanate in Human Saliva." Sensors 20, no. 10 (2020): 2817. http://dx.doi.org/10.3390/s20102817.
Full textAbstract:
A new solid-contact potentiometric ion-selective electrode for the determination of SCN− (SCN-ISE) has been described. Synthesized phosphonium derivative of calix[4]arene was used as a charged ionophore. The research included selection of the ion-selective membrane composition, determination of the ISEs metrological parameters and SCN-ISE application for thiocyanate determination in human saliva. Preparation of the ISEs included selection of a plasticizer for the ion-selective membrane composition and type of the electrode material. The study was carried out using ISE with liquid internal electrolyte (LE-ISE) and solid-contact electrodes made of glassy carbon (GC-ISE) and gold rods (Au-ISE). The best parameters were found for GC sensors for which the ion-selective membrane contained chloroparaffin as a plasticizer (S = 59.9 mV/dec, LOD = 1.6 × 10−6 M). The study of potentiometric selectivity coefficients has shown that the thiocyanate-selective sensor could be applied in biomedical research for determination of SCN− concentration in human saliva. The accuracy of the SCN− determination was verified by testing 59 samples of volunteers’ saliva by potentiometric sensors and UV-Vis spectrophotometry as a reference technique. Moreover, SCN− concentrations in the smokers’ and non-smokers’ saliva were compared. In order to investigate the influence of various factors (sex, health status, taken medications) on the thiocyanate level in the saliva, more extensive studies on a group of 100 volunteers were carried out. Additionally, for a group of 18 volunteers, individual profiles of SCN− concentration in saliva measured on a daily basis for over a month were collected.
5
Wu, Rongrong, Xue-Gang Chen, Chunhui Tao, et al. "An All-Solid-State Silicate Ion-Selective Electrode Using PbSiO3 as a Sensitive Membrane." Sensors 19, no. 3 (2019): 525. http://dx.doi.org/10.3390/s19030525.
Full textAbstract:
Ion-Selective Electrode (ISE) is an emerging technology for in situ monitoring of the chemical concentrations of an aqueous environment. In this work, we reported a novel all-solid-state silicate ISE, using an Ag/Pb/PbSiO3 electrode. This electrode responded to aqueous SiO32− with a reasonable slope of −31.34 mV/decade and a good reproductivity. The linear range covered from 10−5 M to 10−1 M, for the Na2SiO3 solutions and the response time was generally less than 5 s. Its potentiometric response to pH and silicate indicated that the prepared electrode was sensitive to silicate, rather than pH. Compared to the traditional liquid ISE, our all-solid-state silicate electrode was resistant to high pressure and could be used in situ, in deep water. In addition, the miniaturized electrodes (diameter of 0.4 mm and a length of 2–3 cm) could be easily integrated into a multi-modal sensor, which could simultaneously determine multiple parameters. Our prepared silicate ISE could potentially be used to determine the presence of silicate in a low-chloride aqueous environment, where the ISE exhibited better selectivity for silicate, over interfering ions such as, SO42−, NO3−, CH3COO−, CO32−, and PO43−.
6
Zhang, Chuqing, Yang He, Jianbo Wu, et al. "Fabrication of an All-Solid-State Carbonate Ion-Selective Electrode with Carbon Film as Transducer and Its Preliminary Application in Deep-Sea Hydrothermal Field Exploration." Chemosensors 9, no. 8 (2021): 236. http://dx.doi.org/10.3390/chemosensors9080236.
Full textAbstract:
Real-time measurements of carbonate ion concentrations in the ocean are critical to advancing marine environmental monitoring and research into deep-sea hydrothermal activity. Herein, we report the first example of deep-sea hydrothermal field exploration using a carbonate ion-selective electrode (ISE). The novel carbonate ISE was composed of a Ni wire as substrate, carbon film as transducers and carbonate-selective membrane layers. This paper describes the preparation process of the electrode and characterises its performance via scanning electron microscopy (SEM) and electrochemical analysis. The detection limit of the electrode for CO32− is 2.821 × 10−6 mol/L, the linear response range is 1.0 × 10−5–1.0 × 10−1 mol/L and the Nernst slope was −30.4 mV/decade. In April 2021, the carbonate ISE was mounted on multi-parameter sensors with pH and Eh (redox) electrodes for the search of hydrothermal activity at the Southwest Indian Ridge. The simultaneous potential anomalies appeared at this carbonate electrode with the pH and Eh electrodes when passing through the hydrothermal field. The study of the hydrothermal field was supported by the in situ camera video and the sulphide samples. Additionally, the carbonate electrode provides enhanced information of water chemistry for the study of the hydrothermal field.
7
Dr., Hajar Naser Nasser, Elham Munir Baddour Dr., and Mossab Brakat Khalel Dr. "Preparing a Copper(II) Ion Selective PVC Membrane Electrode based on Complex of 3-(4-Nitrophenylazo)-pentane-2,4-dione (LP) with Copper(II) as Ionophore." Chemistry Research Journal 4, no. 4 (2019): 41–52. https://doi.org/10.5281/zenodo.13323323.
Full textAbstract:
3-(4-nitrophenylazo)-pentane-2,4-dione as ionophore was synthesized and used as ion carrier to prepare copper(II) ion selective PVC membrane electrodes. The best performance was obtained by a membrane electrode with the composition: PVC as matrix (32%), (LP) as ionophore (3%), <em>DBP</em> as plasticizer (64%) and NaTBP as anionic additive (1%). This electrode showed a linear potential response to copper(II) was within this range 1.0 × 10<sup>−6</sup>–1.0 × 10<sup>-1</sup>M, with Nernstian slope of 28.23 mV/decade and detection limit down to 7 × 10<sup>−7</sup>M. It is suitable for copper(II) determination within pH between 3 and 6, and performs well over a period of 2 months. The electrode is selective for copper for a large number of metal ions. Described membrane electrode can be used in analytical measurements by direct potentiometry to determine Cu<sup>+2</sup> in standard and real sample solutions.
8
Delmo, Naela, Zekra Mousavi, Tomasz Sokalski, and Johan Bobacka. "Novel Experimental Setup for Coulometric Signal Transduction of Ion-Selective Electrodes." Membranes 12, no. 12 (2022): 1221. http://dx.doi.org/10.3390/membranes12121221.
Full textAbstract:
In this work, a novel and versatile experimental setup for coulometric signal transduction of ion-selective electrodes (ISEs) is introduced and studied. It is based on a constant potential coulometric measurement carried out using a one-compartment three-electrode electrochemical cell. In the setup, a potassium ion-selective electrode (K+- ISE) is connected as the reference electrode (RE). A poly(3,4-ethylenedioxythiophene) doped with polystyrene sulfonate (PEDOT:PSS)-based electrode with a dummy membrane (DM) and a glassy carbon (GC) rod are connected as the working electrode (WE) and counter electrode (CE), respectively. Adding a non-selective dummy membrane to the structure of the WE facilitates the regulation of the measured signal and response time. The results from electrochemical impedance spectroscopy measurements carried out on the WE showed that the time constant is profoundly influenced by the dummy membrane thickness. In addition, the redox capacitance of the PEDOT:PSS film shows a better correlation with the electrode area than the film thickness. Sequential addition/dilution experiments showed the improvement of current and cumulated charge signals in the new setup studied in this work compared to the setup used in the original coulometric signal transduction method. Both conventional ISEs and solid-contact ISEs (SCISEs) were used in this work. The results showed that the coulometric response was independent of the type of ISE used as RE, confirming the versatility of the novel set-up.
9
Kościelniak, Paweł, Marek Dębosz, Marcin Wieczorek, et al. "The Use of an Acylhydrazone-Based Metal-Organic Framework in Solid-Contact Potassium-Selective Electrode for Water Analysis." Materials 15, no. 2 (2022): 579. http://dx.doi.org/10.3390/ma15020579.
Full textAbstract:
A solid-contact ion-selective electrode was developed for detecting potassium in environmental water. Two versions of a stable cadmium acylhydrazone-based metal organic framework, i.e., JUK-13 and JUK-13_H2O, were used for the construction of the mediation layer. The potentiometric and electrochemical characterizations of the proposed electrodes were carried out. The implementation of the JUK-13_H2O interlayer is shown to improve the potentiometric response and stability of measured potential. The electrode exhibits a good Nernstian slope (56.30 mV/decade) in the concentration range from 10−5 to 10−1 mol L−1 with a detection limit of 2.1 µmol L−1. The long-term potential stability shows a small drift of 0.32 mV h−1 over 67 h. The electrode displays a good selectivity comparable to ion-selective electrodes with the same membrane. The K-JUK-13_H2O-ISE was successfully applied for the determination of potassium in three certified reference materials of environmental water with great precision (RSD < 3.00%) and accuracy (RE < 3.00%).
10
Hassan, Eldin, Amr, Al-Omar, Kamel, and Khalifa. "Improved Solid-Contact Nitrate Ion Selective Electrodes Based on Multi-Walled Carbon Nanotubes (MWCNTs) as an Ion-to-Electron Transducer." Sensors 19, no. 18 (2019): 3891. http://dx.doi.org/10.3390/s19183891.
Full textAbstract:
Possible improvement of the performance characteristics, reliability and selectivity of solid-contact nitrate ion-selective electrodes (ISE) (SC/NO3−-ISE) is attained by the application of a nitron-nitrate (Nit+/NO3−) ion association complex and inserting multi-walled carbon nanotubes (MWCNTs) as an ion-to-electron transducer between the ion sensing membrane (ISM) and the electronic conductor glassy carbon (GC) substrate. The potentiometric performance of the proposed electrode revealed a Nernstian slope −55.1 ± 2.1 (r² = 0.997) mV/decade in the range from 8.0 × 10−8–1 × 10−2 M with a detection limit of 2.8 × 10−8 (1.7 ng/mL). Selectivity, repeatability and reproducibility of the proposed sensors were considerably improved as compared to the coated disc electrode (GC/NO3−-ISE) without insertion of a MWCNT layer. Short-term potential stability and capacitance of the proposed sensors were tested using a current-reversal chronopotentiometric technique. The potential drift in presence of a MWCNT layer decreased from 167 μVs−1 (i.e., in absence of MWCNTs) to 16.6 μVs−1. In addition, the capacitance was enhanced from 5.99 μF (in absence of MWCNTs) to 60.3 μF (in the presence of MWCNTs). The presented electrodes were successfully applied for nitrate determination in real samples with good accuracy.
Dissertations / Theses on the topic "Ion-selective electrode (ISE)"
1
Berg, Josephine. "An Ion-Selective Electrode for Detection of Ammonium in Wastewater Treatment Plants." Thesis, KTH, Kemi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298183.
Full textAbstract:
Att följa ammonium i reningsverk är avgörande för att förbättra reningsprocessen och kontrollera flödet av föroreningar ut till ekosystemet. Jonselektiva elektroder (ion-selective electrodes, ISEs) är en lovande teknik inom området, där polymermembran baserade på nonactin är de mest studerade membranen för ammoniumsensorer. Membranet droppas tillsammans med ett jon-till-elektron transducerande material på ett elektrodsubstrat av grafit eller glasartat kol. Nonactin-baserade jonselektiva elektroder har typiskt en detektionsgräns inom storleksordningen 10-5 M, men uppvisar betydande kaliuminterferenser. Ett elektrodsystem baserat på grafitelektroder, inkluderande en ISE och en referenselektrod (RE), studerades i detta examensarbete. De jonselektiva elektroderna producerades genom att droppa jon-till-elektron trandsducerande funktionella flerväggiga kolnanotuber (functional multiwalled carbon nanotubes, f-MWCNTs) lösta i tetrahydrofuran (THF) och en membrancocktail innehållande polyvinylklorid (PVC), mjukgörare och nonactin löst i THF på grafitelektroder. Membranet täcktes sedan med en buffrad polyvinylalkohol (PVA) hydrogel med pH 7 och ett gas-permeabelt membran. Referenselektroderna producerades genom att droppa en membrancocktail av polyvinylbutyral (PVB) mättat med NaCl på grafitelektroder. Jonselektiva elektroder med f-MWCNTs som jon-till-elektron transducerande lager och ett PVC-baserat ammonium-selektivt membran med nonactin producerades framgångsrikt. Elektroderna hade en detektionsgräns i storleksordningen 10-5 M, vilket kan jämföras med tidigare artiklar publicerade inom området. Ytterligare producerades PVB-baserade referenselektroder mättade med NaCl framgångsrikt. Referenselektroderna uppvisade små variationer när koncentrationer av olika salt varierades. Arbetet visade att det gaspermeabla membranet Hyflon AD i kombination med en PVA hydrogel inte var lämplig i den föreslagna konfigurationen, då hålrum formades i torkningsprocessen av det gaspermeabla membranet och membranet delaminerade. Det föreslogs att beteendet kunde vara en konsekvens av inkompatibilitet mellan PVC och det gaspermeable membranet, till följd av deras skillnad i polaritet.<br>Monitoring ammonium in wastewater is vital to improve the treatment process and monitor the release of the pollutant into the ecosystem. Ion-selective electrodes (ISEs) is a promising technique in the area where the ISE is often based on a polymeric membrane containing the ionophore nonactin. The polymeric ion-selective membrane is drop-cast onto graphite or glassy carbon electrode substrates together with an ion-to-electron transducing layer. Nonactin-based ISEs typically demonstrate a limit of detection (LOD) in the range of 10-5 M, but exhibit significant potassium interferences. A solid-state system based on graphite electrodes, including an ISE and a reference electrode (RE), was investigated in this study. The ISEs were produced by drop-casting ion-to-electron transducing functional multi-walled carbon nanotubes (f-MWCNTs) dispersed in tetrahydrofuran (THF) and a membrane cocktail comprising poly(vinyl chloride) (PVC), plasticizer, and nonactin dispersed in THF onto graphite electrodes. The membrane was then covered with a buffered poly(vinyl alcohol) (PVA) hydrogel of pH 7 and a gas-permeable membrane (GPM). The solid-state RE was produced by drop-casting a poly(vinyl butyral) (PVB) membrane cocktail saturated with NaCl onto the graphite electrode. ISEs using f-MWCNTs as ion-to-electron transducers and a PVC-based ammonium-sensitive membrane with nonactin were successfully produced. The electrodes exhibited LODs in the range of 10-5 M, which is comparable to previous articles published on the subject. Additionally, PVB-based solid-state REs saturated with NaCl were successfully produced. The reference electrodes exhibited minor influences when varying the concentrations of various salts. The study showed that the GPM Hyflon AD combined with a PVA hydrogel was not suitable in this configuration, as air voids were formed in the drying process, and the membrane was easily delaminated. It was suggested that this behavior could be a consequence of the incompatibility of PVC and the GPM due to their difference in polarity.
2
Kronborg, Anne Ingelill Engvik. "Trace Elements in Norwegian and Polish Tea Infusions : Determined by High-Resolution Inductively Coupled Plasma Mass Spectrometry (HR ICP-MS) and Ion Selective Electrode (ISE)." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for kjemi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-21166.
Full textAbstract:
AbstractTea from the plant Camellia sinensis is the world’s most popular non-alcoholic beverage, next to water. Tea can be divided into six types, and the most popular teas are black tea, green tea and oolong. In this study infusions of 85 Norwegian and Polish tea samples were analysed to investigate the content of trace elements. 40 samples from Norwegian supermarkets, 30 from the local tea and coffee shop and 15 Polish samples were infused for 5 minutes with ultrapure boiling water (1 gram tea/100 mL). The fluoride content in the tea infusions was determined using an ion selective electrode (ISE), and the rest of the elements were determined by high-resolution inductively coupled plasma mass spectrometry (HR ICP-MS). Tea is a rich source of essential elements as calcium (Ca), phosphorus (P), potassium (K), magnesium (Mg), manganese (Mn), iron (Fe), copper (Cu) and zinc (Zn). The infusions also contain non essential elements as nickel (Ni),lead (Pb), fluoride (F) and aluminium (Al). The average concentrations in one cup of tea from the Norwegian market contains among other elements average concentrations of 0.6 mg Ca/L, 2.8 mg P/L, 37.1 mg K/L, 2.0 mg Mg/L, 5.9 µg Fe/L, 14.1 µg Cu/L, 26.4 µg Zn/L, 0.6 mg Mn/L, 9.9 µg Ni/L, 0.16 µg Pb/L, 0.5 µg Cr/L, 1.0 mg F/L and 1.1 mg Al/L. For the essential elements Ca, P, K, Mg, Fe, Cu and Zn the tea infusions will not contribute to attain the recommended dietary allowances (RDAs) in any extent, but for Mn where the AI are 2.3 mg/day (men) and 1.8 mg/day (women) a few cups of tea can exceed the given AI level. The amount of Pb in the infusions is sustainable lower than the provisional tolerable weekly intake (PTWI) of 25 µg/kg body weight. Drinking tea will therefore not contribute in any high extent to the PTWI.There were on the other hand obtained vast variations of F concentrations in different types of tea and tea contributes also in huge extent to AI of F - 3 mg/day (women), 4 mg/day (men) and from 0.5- 1 mg/day (0 -12 year olds). One cup of tea could easily exceed the AI, at least considering children drinking tea. The Al content in tea is high, and for heavy tea drinkers may tea be the largest single source of Al to contribute to the total weekly intake (TWI) of 1 mg/ kg body weight/ week.The study showed higher concentrations of elements in tea infusions made of tea bags than infusions made of loose tea. Suggesting that the elements in the crushed leaves in tea bags are more extractable than in the loose tea leaves. One other explanation is that the tea bags contain older tea leaves with lower quality and therefore older leaves with higher concentrations of e.g. Al. There was also seen a significant difference in the element composition in Norwegian and Polish infusion, with higher concentrations of elements in the Norwegian infusions.
3
Veder, Jean-Pierre M. "The development of a rigorous nanocharacterization scheme for electrochemical systems." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/2119.
Full textAbstract:
This thesis reports on a methodology for the nanocharacterization of complex electrochemical systems. A series of powerful techniques have been adapted and applied to studies of two scientifically important electrochemical systems; namely polymer membrane solid-state ion-selective electrodes (ISEs) and electrochemically generated tetracyanoquinodimethane (TCNQ) charge-transfer materials. These studies have mainly encompassed the use of neutron reflectometry (NR), electrochemical impedance spectroscopy (EIS), secondary ion mass spectrometry (SIMS), small angle neutron scattering (SANS), synchrotron radiation / Fourier transform-infrared microspectroscopy (SR / FT-IRM), synchrotron radiation / X-ray photoelectron spectroscopy (SR / XPS) and synchrotron radiation / grazing incidence X-ray diffraction (SR / GIXRD). Significantly, an NR technique has been specially developed to enable simultaneous EIS measurements through the development and refinement of a novel electrochemical / reflectometry cell. Furthermore, the development of a versatile electrochemical cell that is capable of allowing SR / GIXRD measurements to be made in practically any conceivable electrochemical problem has also been of great significance.The investigation of polymer membrane solid-state ISEs focused on the problem of water layer formation at the buried polymer interface after prolonged exposure to an analyte. Initially, a rigorous surface and materials characterization scheme was developed and applied to plasticized poly(vinylchloride) (PVC) coated wire electrodes (CWEs) that are known to be adversely affected by water layer formation. It was determined that water and the associated ions from the sample analyte were transported through the PVC membrane. This resulted in the formation of a water layer (approximately 120 Å thick) at the substrate / ion-selective membrane interface. The results of the study suggested that this event occurred after 3 to 20 hours of constant exposure to solution. Moreover, the water layer at the buried interface was found to contain traces of plasticizer, whilst nanodroplets of water were also found in the membrane. The former is evidence for the exudation of plasticizer from the PVC membrane into the water layer at the buried interface.Further investigations on a solid-state ISE utilizing a hydrophobic poly(methylmethacrylate) / poly(decylmethacrylate) (PMMA / PDMA) copolymer as the ion-selective membrane revealed that water was transported through the membrane at a far slower rate than that of plasticized PVC ISEs. In fact, a regular ISE of this type severely restricted water accumulation at the buried interface, with such an event occurring after 460 hours. In addition, water was restricted to accumulation as droplets at the buried interface, as opposed to continuous water layers. A negligible amount of water was found in the bulk of this hydrophobic polymer membrane.Given CWEs are susceptible to forming water at the buried interface, it is customary to employ solid-contact (SC) underlayers. The primary function of the SC is to provide an appropriate mechanism for ion-to-electron transduction. Certain SCs are also theorized to discourage the formation of water layers. The results of this thesis revealed that a hydrophobic poly(3-octylthiophene-2,5-diyl) (POT) SC can prevent the formation of a water layer in SC ISEs altogether. This is not only achieved through the hydrophobic nature of POT, but also through the fact that the underlayer of POT is able to cover any imperfections at the buried interface, which water can use as a site for accumulation.By contrast, a hydrophilic polymer SC, known as poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS), was found to scavenge available traces of water at the buried interface. Instead of forming a well defined water layer or even water-droplets at the buried interface, the PEDOT:PSS SC system was found to soak up all traces of water transported through the ion-selective membrane to the buried interface. Water was detected in the PEDOT:PSS vii underlayer in a miscible state and not as a separate phase as observed with the CWE systems.The mechanism for ion-to-electron transduction in electroactive polymer SCs was also investigated. The study was performed in order to address the extent to which charger-transfer events occur throughout the underlying polymer SC. By studying the electrochemical doping of POT with [3,5-bis(triflouro-methyl)phenyl]borate (TFPBˉ) ions it was shown that the ion-to-electron transduction process is surface confined. This outcome demonstrates that the performance of various SCs does not depend on the thickness of the polymer film. In fact, it is proposed that the sparing use of the SC material may possibly achieve better charge-transfer performance. Such a hypothesis is based on the reduced electron path through the SC, hence reducing the probability that electrons are hindered by impurities and film imperfections. The suggestion of surface confined charge-transfer events also supports previous notions that the effectiveness of SCs is based on the capacitive nature of the material.The final part of the thesis deals with the characterization of the structure and morphology of TCNQ-based charge-transfer materials. Due to the lack of prior research on the electrochemical syntheses and structures of these materials, Cd(TCNQ)2 and Zn(TCNQ)2 were studied. By using SR / GIXRD together with synchrotron powder diffraction, the electrochemically synthesized Cd(TCNQ)2 was found to be crystallographically similar to the powder sample. Subtle differences between the two materials were evident; however, it was found that the major phase of non-hydrated Cd(TCNQ)2 phase was present in both samples. Notably, this phase was found to have a tetragonal unit cell, with cell parameters: a = 16.78Å and c = 8.83Å.Finally, a potential-dependant voltammetric study was carried out on a Zn(TCNQ)2 system. This was done in order to investigate the effects of electrodepositing Zn(TCNQ)2 under different electrochemical conditions. It was found that the material electrocrystallized prior to, or at, the peak potential for reduction of TCNQ to TCNQˉ comprised two layers. The upper layer was shown to consist of a densely packed and highly amorphous layer of Zn(TCNQ)2, while the lower layer was a crystalline phase of Zn(TCNQ)2. The material deposited at a potential after the peak suggested that only the crystalline phase of Zn(TCNQ)2 was present. This finding is significant for two reasons. First, in electrochemistry, it demonstrates that the in situ SR / GIXRD technique can be used to interrogate electrode reaction products under different voltammetric conditions. Next, it is important in the manufacture of electrocrystallized materials, where it demonstrates that complete control of the morphology and major phases is possible and that SR / GIXRD is a useful research tool to study the process.
4
Lin, Kao Ning, and 林國甯. "Direct Ion-Selective Electrode （ISE） Determination of Sodium, Potassium and Chloride in Serum Samples Compared withvIndirect Ion-Selective Electrode Determination." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/69109622228212445721.
Full textAbstract:
碩士<br>臺北醫學大學<br>醫學技術學系<br>93<br>There are substances common as well as electrolyte can not detect by colorimetry method. Determination of Sodium, Potassium and Chloride can process by Flame Photometry、Atomic absorption spectrophotometry and Ion-Selective Electrode. Ion selective electrode is one kind of electrochemical half-reaction cell, its electrode potential varies with the ion concentration in the testing solution. It is used to measure the concentration of one specific ion in the solution. The electrolyte analyzer has been used as a practical ion concentration detect sensor because of its simplicity of device constructing, simple operation, high accuracy and precision. The ion selective electrodes are used in the clinical chemistry electrolyte analyzer to test the concentrations of sodium and potassium ion in the serum sample in Taiwan commonly. There are many hospitals applied Indirect Ion-Selective Electrode（Indirect ISE）clinical chemistry analyzer. Are there significant differences between Indirect ISE and Direct Ion-Selective Electrode（Direct ISE）？ Are the Direct ISE more accuracy routine clinical chemistry analysis method？ Are there some methods to eliminate the common interferences as well as lipid in routine serum sample？
We investigate the determination of sodium and potassium ion and focus on differences between Indirect ISE and Direct ISE in this thesis. We collect two hundred and thirty-three serum samples. Each sample splits into two aliquots. One aliquot process Indirect ISE electrolyte analysis and the other test by Direct ISE in Roche Integra and Hitachi clinical chemistry instrument. We get some results from this study：
1.There are significant differences between Indirect ISE and Direct ISE to analyze electrolyte. If the electrolytes are measured by Indirect ISE analyzer, there is a predictable decrease data results.
2.HDL-C and LDL-C two valuables have no significant correlations with differences between Indirect ISE and Direct ISE electrolyte analyzer. TG and T-cho two valuables have significant correlations with differences between Indirect ISE and Direct ISE electrolyte analyzer.
3.We apply organic reagent（Ethyl Acetate） to eliminate serum lipid and correct bias which from Indirect ISE analysis.
4.We apply ultracentrifuge method to eliminate serum lipid and correcte bias from Indirect ISE analyzer.
The results of this research shows the valuable mode in practical clinical chemistry field. Because this research is only small scope initial study about ISE, samples are minor and only apply one kind of clinical chemistry analyzer. We can not get a better precise score. As a consequence and extinguish predicting model is set up for clinical chemistry analysis field increasing personal health and clinical diagnosis abilities.
Books on the topic "Ion-selective electrode (ISE)"
1
Dixon, Lois Anna. The measurement and validity of ion-selectivity [i.e., selective] electrode selectivity coefficients under non-Nernstian conditions. 1986.
Find full textBook chapters on the topic "Ion-selective electrode (ISE)"
1
Gebbers, Robin, Sebastian Vogel, and Eckart Kramer. "Die Kartierung von Parametern zur Bestimmung des Boden-pH-Wertes." In Sensorgestützte Kartierung von Bodeneigenschaften für die teilflächenspezifische Kalkung. Springer Berlin Heidelberg, 2024. http://dx.doi.org/10.1007/978-3-662-69174-8_4.
Full textAbstract:
ZusammenfassungDieses Kapitel erläutert die Grundlagen zur Messung des pH-Wertes im Boden. Es umfasst Definitionen des pH-Werts und der Bodenacidität, informiert über die Bedeutung des pH-Wertes und gibt einen Überblick über Messmethoden. Ionenselektive Elektroden (ISE) sind die bislang geeignetsten Sensoren und werden daher detailliert dargestellt. Für die direkte Messung im Boden haben sich ISE aus Antimon bewährt. Deren Einsatz für die Bodenkartierung wird praxisnah beschrieben. This chapter explains the fundamentals for measuring pH in soils. It encompasses definitions of the pH and soil acidity, informs about the relevance of soil pH and provides an overview of pH measurement methods. Up to now, ion-selective electrodes (ISE) are the most suitable sensors. Thus, they are described in detail. For direct measurement of pH in soils antimony ISE are well-proven. Practicalities of their application in soil mapping are presented at length.
2
"ISE (Ion-Selective Electrode)." In Encyclopedia of Biophysics. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-16712-6_100503.
Full text
3
SENDA, MITSUGI, TAKASHI KAKIUCHI, TOSHIHARU NUNO, TOSHIYUKI OSAKAI, and TADAAKI KAKUTANI. "THEORY OF ION-SELECTIVE ELECTRODES, AMPEROMETRIC ISE AND POTENTIOMETRIC ISE." In Ion-Selective Electrodes. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-08-037933-3.50040-5.
Full text
4
CAMMANN, K., and S. L. XIE. "ISE SELECTIVITY AND ION-EXCHANGE KINETICS." In Ion-Selective Electrodes. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-08-037933-3.50008-9.
Full text
5
"Ion-selective Electrodes (ISE)." In Analysis and Analyzers. CRC Press, 2016. http://dx.doi.org/10.1201/9781315370323-34.
Full text
6
Brett, Christopher M. A., and Ana Maria Oliveira Brett. "Potentiometric sensors." In Electroanalysis. Oxford University Press, 1998. http://dx.doi.org/10.1093/hesc/9780198548164.003.0003.
Full textAbstract:
This chapter describes the functioning of potentiometric sensors, how they can be usefully employed, and in which experimental situations. Potentiometric sensors work through the measurement of an equilibrium potential, i.e. the potential at zero current, of the sensor versus a suitable reference electrode. These potentials are a function of the activity of the species in solution, not of their concentration. The Debye–Hückel equation relates concentrations to activities and can often be employed; indeed, potentiometric measurements can be used to test the Debye–Hückel theory. For potentiometric sensors to be useful, they must have a sufficiently fast response and be sufficiently selective in media containing various species, besides having a sufficiently good detection limit. The chapter then considers the functioning of ion-selective electrodes; the types of selective electrodes; miniaturisation strategies; and the criteria for choosing a potentiometric sensor.
7
Coldibeli, Bruna, Marco Aurelio Jeanegitz Clemente, and Elen Romão Sartori. "Surfactant-based Potentiometric Sensors for Surfactant Determination." In Surfactant-based Sensors in Chemical and Biochemical Detection. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781837671182-00114.
Full textAbstract:
Surfactant-based ion-selective electrodes (ISEs) offer a simple, sensitive, and reliable alternative for surfactant concentration determination in various industrial applications. This review presents the literature between 2014 and 2022 on liquid- or solid-contact ISEs based on surfactant developed for the determination of surfactants in different sample types, as well as the analytical features of each. Selectivity and stability (lifetime) are also considered.
8
James, Tim. "Fluid and electrolyte disorders." In Clinical Biochemistry. Oxford University Press, 2016. http://dx.doi.org/10.1093/hesc/9780199674442.003.0005.
Full textAbstract:
This chapter looks at fluid and electrolyte balance from the viewpoint of the clinical biochemistry laboratory; it considers the major causes of each abnormality that may be encountered and provides guidance on the accurate reporting of these parameters. The plasma electrolytes sodium and potassium are the most frequently requested investigations in most clinical biochemistry laboratories. Ion-selective electrodes (ISEs) are the main analytical technique used for analysis of sodium and potassium. Two distinct types of ISE, direct and indirect, are used to measure electrolyte concentrations and these may produce different results when used for specimens in which the total protein and/or lipid contents are increased. Poor collection and handling of clinical samples can adversely affect plasma potassium test results. Ultimately, serious disturbances to plasma electrolyte concentrations can be life threatening and rapid communication of abnormal test results by laboratory staff to clinical teams is essential.
9
El Halya, Nabil, Karim Elouardi, Abdelwahed Chari, Abdeslam El Bouari, Jones Alami, and Mouad Dahbi. "TiO2 Based Nanomaterials and Their Application as Anode for Rechargeable Lithium-Ion Batteries." In Titanium Dioxide - Advances and Applications. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.99252.
Full textAbstract:
Titanium dioxide- (TiO2-) based nanomaterials have been widely adopted as active materials for photocatalysis, sensors, solar cells, and for energy storage and conversion devices, especially rechargeable lithium-ion batteries (LIBs), due to their excellent structural and cycling stability, high discharge voltage plateau (more than 1.7 V versus Li+/Li), high safety, environmental friendliness, and low cost. However, due to their relatively low theoretical capacity and electrical conductivity, their use in practical applications, i.e. anode materials for LIBs, is limited. Several strategies have been developed to improve the conductivity, the capacity, the cycling stability, and the rate capability of TiO2-based materials such as designing different nanostructures (1D, 2D, and 3D), Coating or combining TiO2 with carbonaceous materials, and selective doping with mono and heteroatoms. This chapter is devoted to the development of a simple and cost-efficient strategies for the preparation of TiO2 nanoparticles as anode material for lithium ion batteries (LIBs). These strategies consist of using the Sol–Gel method, with a sodium alginate biopolymer as a templating agent and studying the influence of calcination temperature and phosphorus doping on the structural, the morphological and the textural properties of TiO2 material. Moreover, the synthetized materials were tested electrochemically as anode material for lithium ion battery. TiO2 electrodes calcined at 300°C and 450°C have delivered a reversible capacity of 266 mAh g−1, 275 mAh g−1 with coulombic efficiencies of 70%, 75% during the first cycle under C/10 current rate, respectively. Besides, the phosphorus doped TiO2 electrodes were presented excellent lithium storage properties compared to the non-doped electrodes which can be attributed to the beneficial role of phosphorus doping to inhibit the growth of TiO2 nanoparticles during the synthesis process and provide a high electronic conductivity.
Conference papers on the topic "Ion-selective electrode (ISE)"
1
Chen, Li-Da, and Gou-Jen Wang. "Detection of Electrolytes Based on Solid-State Ion-Selective Electrode." In ASME 2021 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/detc2021-67369.
Full textAbstract:
Abstract This study aimed to develop simple electrochemical electrodes for the fast detection of chlorine, sodium, and potassium ions in human serum. A flat thin-film gold electrode was used as the detection electrode for chloride ions; a solid-state ion-selective electrode (ISE), which was formed by covering a flat thin-film gold electrode with a mixture of 7,7,8,8-tetracyanoquinodimethane (TCNQ) and ion-selective membrane (ISM), was developed for sodium and potassium ions detection. Through cyclic voltammetry (CV) and square-wave voltammetry (SWV), the detection data can be obtained within two minutes. The linear detection ranges in the standard samples of chlorine, sodium, and potassium ions were 25–200 mM, 50–200 mM, and 2–10 mM, with the average relative standard deviation (RSD) of 0.79%, 1.65%, and 0.47% and the average recovery rates of 101%, 100%, and 96% respectively. Interference experiments using normal concentrations of Na+, K+, Cl−, Ca2+, and Mg2+ in human blood demonstrated that the proposed detection electrodes have good selectivity. Moreover, the proposed detection electrodes have characteristics such as the ability to be prepared under relatively simple process conditions, excellent detection sensitivity, and low RSD, and the detection linear range is suitable for the Cl−, Na+, and K+ concentrations in human serum.
2
David Hernandez-Varela, Josue, Francisco J. Bejarano Santiago, Jose Jorge Chanona-Perez, and Juan Vicente Mendez Mendez. "Development and Characterization of a Recycled Plastic Based Ion-Selective Electrode (PB-ISE) Using CNT Ink as Ion-To-Electron Transducer." In 2019 16th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE). IEEE, 2019. http://dx.doi.org/10.1109/iceee.2019.8884486.
Full text
3
Mohan, Chandra, Jenifer Robinson, and Arvind Negi. "Ion-Selective Electrode (ISE) Based on Polyvinyl Chloride Membrane Formed from Heterocyclic Quinazoline Compounds as Ionophore material." In CSAC 2023. MDPI, 2023. http://dx.doi.org/10.3390/csac2023-14914.
Full text
4
Masiero, Vithoria de Souza, Nairo Massakazu Sumita, Gustavo Loureiro, Marino Evanfelista Facchin, Ludmilla Neves da Rocha, and Andreia Pelegrini Mendes. "Evaluation of Biossays E6 Plus Analyzer for Measurement of Serum Ionized Calcium." In Resumos do 56º Congresso Brasileiro de Patologia Clínica/Medicina Laboratorial. Zeppelini Editorial e Comunicação, 2024. https://doi.org/10.5327/1516-3180.142s1.11171.
Full textAbstract:
Objective: Ionized calcium measurement has become part of routine clinical laboratory testing with the introduction of calcium ion-selective electrode (ISE). Until recently, this method was exclusive to semi-automated equipment requiring dedicated personnel. The Biossays E6 Plus electrolyte analyzer (Snibe) emerged, performing fully automated ionized calcium measurement. This study aimed to verify the analytical performance of the Biossays E6 Plus analyzer. Method: Beginnig on February 23rd, 40 routine samples spanning different ranges of ionized calcium concentration were analyzed using the Biossays E6 Plus analyzer for accuracy assessment. The Lyphochek Assayed Chemistry Controls (Bio-Rad Laboratories, USA) were used to evaluate laboratory precision. Carryover analysis was performed using high- and low-concentration sample pools over 21 consecutive runs. The AVL 9180 Series Electrolyte Analyzer (Roche), the routine laboratory equipment, was used for comparison purposes in this verification process. Statistical analysis was performed using EP Evaluator software. Conclusion: Forty routine samples were analyzed for analytical accuracy, with concentration levels ranging from 0.72 to 2.15 mmol/L. The Pearson correlation coefficient (r) obtained was 0.996. Analytical precision was analyzed considering the coefficient of variation (CV) for commercial control materials. After 16 runs, level 1 (1.56 mmol/L), level 2 (1.19 mmol/L), and level 3 (0.59 mmol/L) CV was 0.3, 0.7, and 0.4%, respectively. The maximum CV considered acceptable was 2.25%. Carryover analysis, performed using two sample pools with high (1.82 mmol/L) and low (0.95 mmol/L) concentration levels over 21 runs, yielded a high-low mean of 0.994 and a carryover value of -0.032 mmol/L. The maximum acceptable value for carryover was 0.050 mmol/L. The Biossays E6 Plus analyzer demonstrated excellent analytical performance in terms of accuracy, precision, and carryover. These results support its validity for use in ionized calcium measurement, optimizing routine processes and enhancing the reliability of test results.
5
Stelzle, M., C. Bieg, K. Fuchsberger, G. Linke, R. Samba, and S. Werner. "A3.3 - Solid contact ion selective electrodes (ISE) for applications in life sciences, biotechnology and environmental monitoring – Technology and Performance." In AMA Conferences 2017. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2017. http://dx.doi.org/10.5162/sensor2017/a3.3.
Full text
6
Saha, Ajanta, Sarath Gopalakrishnan, Jose Waimin, et al. "Embrace the Imperfection: How Intrinsic Variability of Roll-to-Roll Manufactured Environmental Sensors Enable Self-Calibrating, High-Precision Quorum Sensing." In ASME 2022 17th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/msec2022-84878.
Full textAbstract:
Abstract Roll-to-Roll (R2R) process is well suited for manufacturing low cost, miniaturized, solid contact Ion-selective electrodes (ISEs) of potentiometric sensors to be used for continuous monitoring of various analytes in environmental, industrial, and health-care applications. It is presumed that the intrinsic thickness variability of the R2R process would limit the accuracy of the ISE-based sensors and would make them inferior to sensors fabricated by higher precision manufacturing processes. Instead, in this paper we propose to use the intrinsic variability of R2R process as a “resource” to achieve high-accuracy sensing even when the sensors are operated in uncontrolled field conditions. This is achieved by applying a fundamentally new physics-guided statistical approach involving: (i) ‘Self calibration’ where we calculate temperature from differential measurement of the ISEs induced by R2R variability to calibrate the sensors in uncontrolled temperature condition, and (ii) ‘Quorum sensing’ where we use a collection of R2R manufactured sensors to estimate the true concentration considering credibility of each sensor calculated by Bayesian Maximum Likelihood Estimation method. With these two new techniques, we demonstrate the use of “low-precision” R2R sensors to measure nitrate concentration of an agricultural field continuously over a period of 15 days within 10% of the ground-truth measured by the traditional high-precision commercial nitrate sensor.
7
Nottoli, Emmanuelle, Philippe Bienvenu, Didier Bourlès, Alexandre Labet, Maurice Arnold, and Maité Bertaux. "Determination of Long-Lived Radionuclide (10Be, 41Ca, 129I) Concentrations in Nuclear Waste by Accelerator Mass Spectrometry." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96054.
Full textAbstract:
Radiological characterization of nuclear waste is essential for storage sites management. However, most of Long-Lived RadioNuclides (LLRN), important for long-term management, are difficult to measure since concentration levels are very low and waste matrices generally complex. In an industrial approach, LLRN concentrations are not directly measured in waste samples but assessed from scaling factors with respect to easily measured gamma emitters. Ideally, the key nuclide chosen (60Co, 137Cs) should be produced by a similar mechanism (fission or activation) as the LLRN of interest and should have similar physicochemical properties. However, the uncertainty on the scaling factors, determined from experimental and/or calculation data, can be quite important. Consequently, studies are performed to develop analytical procedures which would lead to determine precisely the concentration of LLRN in nuclear waste. In this context, the aim of this study was to determine the concentrations of three LLRN: 129I (T1/2 = 15.7×106 a), 41Ca (T1/2 = 9.94×104 a) and 10Be (T1/2 = 1.387×106 a) in spent resins used for primary fluid purification in Pressurized Water Reactors using Accelerator Mass Spectrometry (AMS) for measurement. The AMS technique combined mass spectrometry and nuclear physics to achieve highly efficient molecular and elemental isobars separation. Energies of several Million Electron-Volt transferred to the ions in the first accelerating part of specifically developed tandem accelerators lead to molecular isobars destruction through interaction with the argon gas used to strip the injected negative ions to positive ones. At the exit of the tandem accelerator, the energy acquired in both accelerating parts allows an elemental isobars separation based on their significantly different energy loss (dE) while passing through a thickness of matter dx that is proportional to their atomic number (Z) and inversely proportional to ions velocity (ν) according to the Bethe-Block law (1). (1)dEdx=k*Z2ν2 The use of a particle accelerator in conjunction with a selective ion source, mass and energy filters and a high-performance detector thus allow unambiguously identifying and measuring analyte concentration against much more abundant interfering isobars. The development of AMS and of related applications have recently been extensively reviewed [1–3]. Up to now, the potentialities of the accelerator mass spectrometry technique were explored for the measurement of cosmogenic radionuclides produced in the Earth’s environment either in the atmosphere or in the Earth’s crust (in situ-production). Many applications aiming to date and/or quantify Earth surface processes have been developed in the fields of geology, geomorphology and planetary sciences as well as archeology paleoanthropology and biomedicine. The present study extends the scope of AMS to nuclear industry. Because AMS facilities are not widely accessible and difficult to handle, LLRN concentrations in nuclear waste are usually determined using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and radiometric techniques. However for the measurement of very low LLRN concentrations, AMS becomes the most effective measurement method with detection limits of 105–106 atoms per sample. In this study, AMS measurements were performed using the French AMS national facility ASTER located at the Centre Européen de Recherche et d’Enseignement des Géosciences de l’Environnement (CEREGE). The challenge was to define a chemical treatment procedure allowing the measurement of the three nuclides, 10Be, 41Ca and 129I, by AMS. Each method selection was based on three main requirements: 1) a quantitative recovery in solution of Be, Ca, I and key radionuclides after resin mineralization, 2) a selective extraction from the sample matrix and the separation from β-γ emitters (3H, 14C, 55Fe, 59Ni, 60Co, 63Ni, 90Sr, 125Sb, 134Cs, 137Cs) and isobars, 3) the precipitation of each element under the best suited forms (i.e. AgI, CaF2, BeO) for AMS measurements. The chosen methods were optimized on synthetic solutions and finally applied for the determination of the three LLRN concentrations in spent resins from a 900 MWe Nuclear Power Reactor.