Auswahl der wissenschaftlichen Literatur zum Thema „Couplage ICP-MS“
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Zeitschriftenartikel zum Thema "Couplage ICP-MS"
Le Bouil, Anne. „Spéciation de l'arsenic par couplage LC-ICP-MS : avantages et inconvénients en biologie médicale“. Annales de Toxicologie Analytique 19, Nr. 1 (2007): 81–86. http://dx.doi.org/10.1051/ata:2007012.
Der volle Inhalt der QuelleSéby, Fabienne, Jean Dumont, Christine Gleyzes, Mathieu Menta, Véronique Vacchina und Maïté Bueno. „Analyse de formes chimiques et de nanoparticules dans les échantillons d’eau : méthodes analytiques, préconcentration et validation“. Revue des sciences de l’eau 28, Nr. 1 (21.04.2015): 27–32. http://dx.doi.org/10.7202/1030004ar.
Der volle Inhalt der QuelleYe, Lambiénou, Désiré Jean Pascal Lompo, Aboubakar Sako und Hassan Bismarck Nacro. „Evaluation of trace metal content in soils subjected to inputs of solid urban wastes“. International Journal of Biological and Chemical Sciences 14, Nr. 9 (25.03.2021): 3361–71. http://dx.doi.org/10.4314/ijbcs.v14i9.31.
Der volle Inhalt der QuelleKagadju, Napoléon Amani, Pascal Nguo Balingene, Isaac Balume Kayani und Juste Yamonekawasso. „Impacts des décharges incontrôlées sur la qualité du sol dans les quartiers péri-urbains de la ville de Goma (Est RD Congo): cas du quartier MUGUNGA“. International Journal of Biological and Chemical Sciences 17, Nr. 4 (19.09.2023): 1738–49. http://dx.doi.org/10.4314/ijbcs.v17i4.35.
Der volle Inhalt der QuelleDarrouzes, Jérôme. „Spectromètre de masse à plasma à couplage inductif (ICP-MS) à cellule de collision/réaction (CC/R) pour l'analyse clinique. Performances et applications à l'analyse élémentaire et à la spéciation“. Annales de Toxicologie Analytique 19, Nr. 1 (2007): 103–11. http://dx.doi.org/10.1051/ata:2007015.
Der volle Inhalt der QuelleDeng, Dongyan, Shu Zhang, He Chen, Lu Yang, Hui Yin, Xiandeng Hou und Chengbin Zheng. „Online solid sampling platform using multi-wall carbon nanotube assisted matrix solid phase dispersion for mercury speciation in fish by HPLC-ICP-MS“. Journal of Analytical Atomic Spectrometry 30, Nr. 4 (2015): 882–87. http://dx.doi.org/10.1039/c4ja00436a.
Der volle Inhalt der QuelleFaltusová, Veronika, Tomáš Vaculovič, Markéta Holá und Viktor Kanický. „Ilaps – python software for data reduction and imaging with LA-ICP-MS“. Journal of Analytical Atomic Spectrometry 37, Nr. 4 (2022): 733–40. http://dx.doi.org/10.1039/d1ja00383f.
Der volle Inhalt der QuelleManard, Benjamin T., C. Derrick Quarles, E. Miller Wylie und Ning Xu. „Laser ablation – inductively couple plasma – mass spectrometry/laser induced break down spectroscopy: a tandem technique for uranium particle characterization“. Journal of Analytical Atomic Spectrometry 32, Nr. 9 (2017): 1680–87. http://dx.doi.org/10.1039/c7ja00102a.
Der volle Inhalt der QuelleGratuze, Bernard, Alain Giovagnoli, J. N. Barrandon, Philippe Telouk und Jean-Louis Imbert. „Apport de la méthode ICP-MS couplée à l'ablation laser pour la caractérisation des archéomatériaux“. Revue d'Archéométrie 17, Nr. 1 (1993): 89–104. http://dx.doi.org/10.3406/arsci.1993.908.
Der volle Inhalt der QuelleKataba, Andrew, Shouta M. M. Nakayama, Hokuto Nakata, Haruya Toyomaki, Yared B. Yohannes, John Yabe, Kaampwe Muzandu et al. „An Investigation of the Wild Rat Crown Incisor as an Indicator of Lead (Pb) Exposure Using Inductively Couple Plasma Mass Spectrometry (ICP-MS) and Laser Ablation ICP-MS“. International Journal of Environmental Research and Public Health 18, Nr. 2 (18.01.2021): 767. http://dx.doi.org/10.3390/ijerph18020767.
Der volle Inhalt der QuelleDissertationen zum Thema "Couplage ICP-MS"
Chamoun, Jean. „Contribution du couplage CE-ICP/MS dans l'étude des interactions métals-protéine non-covalentes“. Université Louis Pasteur (Strasbourg) (1971-2008), 2005. http://www.theses.fr/2005STR13090.
Der volle Inhalt der QuelleThe screening of metal/protein interactions using CE coupled to ICP/MS was investigated. The development of this new analytical tool requires, besides the hyphenation of the two techniques, both an efficient separation of the proteins and a sensitive detection of metals. The optimization of the electrophoretic separation of a protein-test mixture led to the use of a borate buffer, pH 9. 2, which both minimizes adsorption and allows the separation of all proteins’ mixture with a good migration times reproducibility. The hyphenation between capillary electrophoresis and ICP/MS was performed using a sheath flow interface. The optimization of parameters, such as coolant, auxiliary and nebulizer gases, composition and flowrate of the sheath flow solution and position of the capillary in the nebulizer was carried out in order to obtain the best detection sensitivity and separation efficiency. However, this type of interface involves important samples dilutions, which led us to develop an on-line preconcentration technique in order to improve the detection limits. The detection limits calculated for the copper and zinc contained in the carbonic anhydrase, the less efficiently concentrated protein, showed an improvement of the detection limits in CE-ICP/MS of 6 times for copper and 5 times for zinc. CE-ICP/MS was then used in the study of the interactions of three transition metals (Cd, Co and Ni) with a mixture of proteins made of metalloproteins and major blood serum proteins. These studies revealed a similar behavior of cobalt and nickel, completely different from that of cadmium. In the case of the metalloproteins, hyphenated CE-ICP/MS allowed to identify the probable nature of the interaction sites. Moreover, this method allowed studies on the relative affinity of various metals with a mixture of proteins. The dissociative aspect of the separation was also exploited in order to obtain kinetic data which allowed the access to the dissociation constants of the complexes and in certain cases, highlighted the presence of multiple interaction sites. Finally, the technique was applied to so-called “hard cations”: lanthanides and uranyl ion (UO22+). The first results showed a massive adsorption of these cations on the capillaries surface. Nevertheless, the studies, carried out on a mixture of six proteins, previously identified as uranium-targets, showed that four of them interact with the uranium, among which albumin and transferrin
Topin, Sylvain. „Etude des interactions entre les éléments transuraniens et quelques ligands environnementaux par le couplage électrophorèse capillaireSpectrométrie de masse à source plasma générée par couplage inductif“. Paris 11, 2009. http://www.theses.fr/2009PA112099.
Der volle Inhalt der QuelleIn this work, the capabilities of the hyphenated Capillary Electrophoresis-ICP-MS technique are used to improve the kwnowledge on the transuranic element speciation in the environment (nuclear waste management) and in the framework of spent fuel reprocessing. Essential thermodynamical data have been determined for the first time for the interactions of the plutonium at the 5+ oxydation state (main soluble species of Pu of the surface water) in inorganic media (chloride, nitrate, sulfate, carbonate). This study enables to correct the existing model, based on the thermodynamical data of the neptunium at the 5+ oxydation state (analogue of the pentavalent plutonium). Furthermore, the hyphenated CE-ICP-MS technique has also been applied to study the interactions between DTPA, widely used in the nuclear industry, and the elements at the 3+ oxydation state (Pu, Am, Cm, Cf) and at the 4+ oxydation state (Pu, Np, Th). The results show for the first time the formation of mixed An(IV)/DTPA/OH complexes likely to play a key role on the actinide behavior in the field of the waste management. The study on the trivalent elements confirms the selectivity of DTPA versus the actinide in the framework of the actinide/lanthanide separation but proves that the covalency, responsible of the selectivity, are less important than the ionicity in the binding
Bernardin, Marie. „Potentiel du couplage de la chromatographie en phase liquide bidimensionnelle avec l’ICP-MS/MS pour l’analyse de matrices organiques complexes“. Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1220/document.
Der volle Inhalt der QuelleTwo-dimensional liquid chromatography coupled with a specific detection such as inductively coupled plasma mass spectrometry (LCxLC-ICP-MS/MS) proves to be a relevant technique for the characterization of petroleum complex matrices. Such coupling makes it possible to consider the speciation of sulfur or metal contaminants (vanadium and nickel). Firstly, the evaluation and the comparison of several sample introduction systems was performed, with regard to the dispersion induced in the system, in order to keep a high efficiency from the LCxLC system. The second part of the instrumental development concern the optimization of both dimensions. The choice of the different retention mechanisms is essential given the complexity of the samples (polarity, solubility, molecular weight...). Additionally, the introduction of organic matrices in the plasma remains a real challenge which could be the cause of many instrumental and analytical issue. Finally, once the off-line SECxRPLC-ICP-MS/MS method was developed, it was applied to different samples showing how it can be considered as an interesting tool to explain the behavior of matrices within the refining units, through the comparison of 2D-contour plots
Dauchy, Xavier. „Spéciation des butylétains dans les sédiments marins par couplage chromatographie en phase liquide - plasma à couplage inductif/spectrométrie de masse (HPLC-ICP-MS)“. Pau, 1993. http://www.theses.fr/1993PAUU3003.
Der volle Inhalt der QuelleRonzani, Anne-Laure. „Etude du couplage ablation laser - ICP-MS pour la détection des activités nucléaires; application à l'analyse de microparticules d'uranium“. Thesis, Montpellier, Ecole nationale supérieure de chimie, 2019. http://www.theses.fr/2019ENCM0001.
Der volle Inhalt der QuelleThe nuclear non-proliferation program is based among others on analysis of uranium microparticles. This thesis work consisted in developing and studying performances, limitations and application to various supports of a methodology for direct analysis of the isotopic compositions of uranium particles by means of the coupling between a nanosecond UV (213 nm) laser ablation (LA) device and an inductively coupled plasma mass spectrometer (ICP-MS). After the optimization of the experimental set-up and of the analytical methodology, several batches of uranium particles with different sizes and isotopic composition have been analyzed, especially spherical sub-micrometer uranium particles (415 ± 60 nm) produced in collaboration with the Institute de Chimie Séparative de Marcoule. For these ones, the measured isotopic ratios have been in perfect consistency with the expected values. In addition, thanks to an excellent signal to noise ratio, limits of detection are particularly low, in the attogram range for the 234U isotope. The combined standard uncertainties, around 1 % for the 235U/238U ratios and of a few percent for the 234U/238U ratios, are comparable to those obtained by other particle analysis techniques used in the laboratory. However, the ions separation technology (magnetic field) and the different detectors technologies of the ICP-MS used in this study (Faraday cups and ion counters) are not fully suited for the rapid variations (a few hundreds of µs) of the signal intensity produced by the laser ablation. This represents of major error source which limit the measurement repeatability. Therefore, we have evaluated the potential of the coupling of laser ablation device (ns, UV 193 nm) with a time of flight ICP-MS (icpTOF, Tofwerk, Thun, Switzerland) which allows the acquisition of the entire mass spectrum in 30 µs, for the analysis of micrometer-sized uranium particles. Combined standard uncertainties of approximately 0.3 % and an excellent trueness have been obtained for the measurement of the 235U/238U ratios in micrometer-sized enriched uranium particles. However, performances are still inadequate for the measurement of the minor isotopic ratios (234U/238U, 236U/238U) because of the relatively low sensibility of the instrument and of a high peak tailing effect. Finally, the developed analytical methodology has been applied, for the first time, to the direct analysis of uranium particles deposited onto a pine needle. A significant loss of sensibility compared to a deposition onto graphite disk and moderate increases of the uncertainties have been observed. However, the trueness is still satisfactory
Beuvier, Ludovic. „Développement d'une méthode de séparation chromatographique couplée aux spectrométries de masse à source d'ionisation électrospray (ESI-MS) et à source plasma à couplage inductif (ICP-MS) : application à l'analyse de spéciation des lanthanides“. Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066594/document.
Der volle Inhalt der QuelleThis work focuses on the development of a chromatographic separation method coupled to both ESI-MS and ICP-MS in order to achieve the comprehensive speciation analysis of lanthanides in aqueous phase representative of back-extraction phases of advanced spent nuclear fuel treatment processes. This analytical method allowed the separation, the characterization and the quantitation of lanthanides complexes holding polyaminocarboxylic ligands, such as DTPA and ETDA, used as complexing agents in these processes. A HILIC separation method of lanthanides complexes has been developed with an amide bonded stationary phase. A screening of a wide range of mobile phase compositions demonstrated that the adsorption mechanism was predominant. This screening allowed also obtaining optimized separation conditions. Faster analysis conditions with shorter amide column packed with sub 2 µm particles reduced analysis time by 2.5 and 25% solvent consumption. Isotopic and structural characterization by HILIC ESI-MS was performed as well as the development of external calibration quantitation method. Analytical performances of quantitation method were determined. Finally, the development of the HILIC coupling to ESI-MS and ICP-MS was achieved. A simultaneous quantitation method by ESI-MS and ICP-MS was performed to determine the species quantitative distribution in solution. Analytical performances of quantitation method were also determined
Munoz-Olivas, Riansares. „Spéciation du sélénium par techniques de couplage et détection par ICP/MS : application à la production des matériaux de référence“. Bordeaux 1, 1996. http://www.theses.fr/1996BOR10553.
Der volle Inhalt der QuelleHernandez, Fanny. „Spéciation du chrome dans les produits céréaliers et les produits laitiers par couplage HPIC/ICP-MS et impact en termes d'évaluation du risque sur la santé du consommateur“. Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1015.
Der volle Inhalt der QuelleChromium (Cr) is a metal widely distributed throughout the Earth’s crust. Most commonly forms found are Cr(III), which has long been considered as an essential nutrient for human health, and Cr(VI) which is carcinogenic to humans. The most important contribution to the overall exposure of total chromium in general population is through food. To improve risk assessment on the presence of chromium, there is a need to accurately determine the content of Cr(III) and Cr(VI) in food. The first part of this work focuses on the issue of chromium. The second part deals about the optimization of a separation method for chromium species. Experimental design allowed us to study effects of factors and their interactions in order to determine the best analytical conditions. Third part is the development and validation of selective alkaline extraction for Cr(VI) in dairy and cereal products, also using experimental design. A study of the correction of the interferences and of interconversions is also presented showing the accuracy of the method. Analytical performances were assessed by the accuracy profile method and the method was used to determine Cr(VI) in 65 samples of dairy and cereal products ; Cr(VI) was not detected in these samples. The last part is devoted to develop a selective determination method for Cr(III) in dairy products. Analytical performances of the method were assessed before its use to determine Cr(III) in dairy products samples. Results confirm that chromium in those matrices will be Cr(III). It would be interesting to continue this work in order to study other matrices to better assess consumer exposure and to improve risk assessment related to the presence of chromium in food, depending on its speciation
Guérin, Thierry. „Spéciation multiélémentaire de l'arsenic, sélénium, antimoine et tellure dans des eaux et des lixiviats de sols par couplage HPLC-ICP-MS“. Pau, 1998. http://www.theses.fr/1998PAUU3003.
Der volle Inhalt der QuelleBaghdadi, Sarah. „Analyse des actinides dans les urines en situation de crise par couplage entre les colonnes calix[6]arènes et un spectromètre de masse à plasma induit“. Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112081/document.
Der volle Inhalt der QuelleIn the event of a nuclear crisis, involving actinides (U, Pu, Am) it is important to have fast analysis methods available in order to identify people that could be contaminated. Usually, they are performed in urine or faeces. Even though, analytical methods used with alpha detection are reliable they are lengthy and tedious to set up. This work consisted in developing an on-line coupling method between a calix[6]arene-based chromatography column and an inductively coupled plasma mass spectrometer (ICP-MS). To do so, a speciation study of actinides in mineralised urine was developed to understand the chemical equilibria happening during the actinides extraction. A protocol was elaborated to extract simultaneously all three actinides at pH ≈ 5, then co-elute them with 0.25 mol.L1 H3PO4. Recovery was 56 %, 74 % and 85 % for U, Pu and Am respectively. The column was then coupled to the ICP-MS. A parameter study helped defining mineralisation duration, extraction and elution flow-rates. It was then possible to propose an on-line coupling system allowing reaching detection limits lower than 0.5 mBq.L-1 for 238U and 243Am and lower than 5 mBq.L-1 for 239Pu and 241Am, for analysis duration lower than 6 hours. These analytical performances show the interest of this technique for a use in a nuclear crisis situation
Konferenzberichte zum Thema "Couplage ICP-MS"
Buzoianu, Mirella, Mihail Radu und George Victor Ionescu. „Recent progress in chemical measuring capabilities in INM as a result of EMRP/EMPIR Programme“. In 19th International Congress of Metrology (CIM2019), herausgegeben von Sandrine Gazal. Les Ulis, France: EDP Sciences, 2019. http://dx.doi.org/10.1051/metrology/201920004.
Der volle Inhalt der QuelleXu, Jiajun. „Assessment and Characterization of Hybrid Mesoporous Material MCM With Titanium Dioxide for Water Treatment“. In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-12272.
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