Relevant bibliographies by topics / Solid-phase extraction

Academic literature on the topic 'Solid-phase extraction'

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Published: 4 June 2021
Last updated: 1 June 2024

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Journal articles on the topic "Solid-phase extraction"

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Tippins, B. "Solid phase extraction fundamentals." Nature 334, no. 6179 (July 1988): 273–74. http://dx.doi.org/10.1038/334273a0.

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Pawliszyn, J. "Analytical Solid-Phase Extraction." Analytica Chimica Acta 419, no. 1 (August 2000): 115. http://dx.doi.org/10.1016/s0003-2670(00)00914-4.

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Šafařı́ková, Mirka, and Ivo Šafařı́k. "Magnetic solid-phase extraction." Journal of Magnetism and Magnetic Materials 194, no. 1-3 (April 1999): 108–12. http://dx.doi.org/10.1016/s0304-8853(98)00566-6.

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Butcher, David J. "Analytical solid-phase extraction." Microchemical Journal 65, no. 1 (July 2000): 99. http://dx.doi.org/10.1016/s0026-265x(00)00020-5.

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Maharramova, L. M., N. E. Jabbarova, and M. Y. Abdullayeva. "EXTRACTION OF NICKEL (II) PICRATE FROM SOLID PHASE WITH ORGANIC REAGENTS." Chemical Problems 21, no. 3 (2023): 221–28. http://dx.doi.org/10.32737/2221-8688-2023-3-221-228.

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The present work is dedicated to the very important area of analytical chemistry—extractionphotometric determination of ions from a solid phase. We carried out studies on the extraction of nickel picrate (NiPik2) from the solid phase using solutions of tetrahalobicyclic reagents of the acetylene series with a dicarbonyl bridge in the side chain (L1, L2, L3, L4) of chloroform. New organic ligands were synthesized and their physicochemical properties - melting point, molecular weights, as well as their optical density studied. A new technique for the extraction-photometric determination of the nickel ion from the solid phase was developed. It found that new organic reagents (L1-L4) exhibit high extraction ability (0.11-0.64 mg/l) of Ni ions from the solid phase. When comparing the extraction activity of the studied reagents, it was revealed that the ability to extract organic ligands of tetrahalobicyclic reagents (L1-L4) changes in the following order: L4> L3> L1> L2. Magnetic field increased nickel extraction by 3-4%.
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Kanafusa, Sumiyo. "Solid Phase Micro Extraction: SPME." Nippon Shokuhin Kagaku Kogaku Kaishi 65, no. 4 (2018): 215. http://dx.doi.org/10.3136/nskkk.65.215.

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Płotka-Wasylka, Justyna, Natalia Szczepańska, Miguel de la Guardia, and Jacek Namieśnik. "Miniaturized solid-phase extraction techniques." TrAC Trends in Analytical Chemistry 73 (November 2015): 19–38. http://dx.doi.org/10.1016/j.trac.2015.04.026.

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Rodrı́guez, I., M. P. Llompart, and R. Cela. "Solid-phase extraction of phenols." Journal of Chromatography A 885, no. 1-2 (July 2000): 291–304. http://dx.doi.org/10.1016/s0021-9673(00)00116-3.

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Tang, De-Song, Hui-Ling Liang, Lin Zhang, and Huan-Lin Chen. "Solid Phase Extraction of Solanesol." Chromatographia 66, no. 1-2 (June 6, 2007): 129–31. http://dx.doi.org/10.1365/s10337-007-0251-5.

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Chisvert, Alberto, Soledad Cárdenas, and Rafael Lucena. "Dispersive micro-solid phase extraction." TrAC Trends in Analytical Chemistry 112 (March 2019): 226–33. http://dx.doi.org/10.1016/j.trac.2018.12.005.

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Dissertations / Theses on the topic "Solid-phase extraction"

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Zhao, Qing. "Pseudostationary Phase for Solid Phase Extraction." TopSCHOLAR®, 2006. http://digitalcommons.wku.edu/theses/988.

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A unique pseudostationary phase for Solid Phase Extraction is presented. This pseudostationary phase consists of surfactant, which is initially immobilized onto hydrophilic cation exchange resin. The surfactant chain through hydrophobic interactions extracts hydrophobic analytes in the same manner as conventional bonded alkyl moieties on silica based non-polar sorbents. Although hydrophobic analytes can be efficiently trapped on commercially available non-polar sorbents (i.e. Ci8 silica), organic solvents that are necessary to break strong hydrophobic interactions between the analytes and the sorbent are harmful. They are also incompatible for direct introduction into a reversed phase liquid chromatographic set up. In the presented approach, the entire pseudostationary phase may be removed via ion exchange in very mild aqueous solutions, resulting in very efficient elutions with a final extract that is mild and reversed phase liquid chromatographic compatible. Rinse solution parameters were optimized and various cationic surfactants attached to cation exchangeable silica including silica modified with sulfopropyl groups and unmodified silica were investigated to reach sufficient sorbent hydrophobicity to capture EPA 16 priority polycyclic aromatic hydrocarbons (PAHs). PAHs were preconcentrated from river water and were determined using fluorescence detector coupled to high performance liquid chromatography (HPLC). Detections limits for all PAHs examined were lower than EPA's maximum contaminant level.
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Shahtaheri, Seyyed Jamaleddin. "Trace pesticide analysis using immuno-based solid-phase extraction." Thesis, University of Surrey, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336497.

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Ca, Diep Vu. "NANOSTRUCTURED ASSEMBLIES FOR SOLID PHASE EXTRACTION OF METAL IONS." Miami University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1107552000.

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Oakes, Tony. "Silica Based Solid Phase Extraction Sorbent with a Removable Alkyltrimethylammonium Surfactant Phase." TopSCHOLAR®, 2003. http://digitalcommons.wku.edu/theses/559.

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Presented is a solid phase extraction (SPE) sorbent having a removable "stationary phase." This removable phase that consists of alkyltrimethylammonium surfactant is initially immobilized onto hydrophilic strong cation exchange resin. The surfactant chain through hydrophobic interactions extracts hydrophobic analytes in the same manner as conventional bonded alkyl moieties on silica based non-polar sorbents. For the extraction of very hydrophobic species with conventional sorbents, solvents used for analyte elution are generally toxic and not directly instrument compatible. The chosen solvent must be strong enough to efficiently break hydrophobic interactions between the analyte and sorbent. Using a removable "stationary phase," hydrophobic interactions need not be broken between the analyte and the sorbent. In the presented approach, the surfactant ("stationary phase") is removed via ion exchange with exchange ions in very mild aqueous based and instrument compatible solutions. The analyte, being associated with the surfactant, is also removed in the process. Very efficient elutions of hydrophobic analytes are a direct benefit of having a removable "stationary phase." Rinse solution parameters explored include exchange cation type and concentration, and alcohol type and concentration. The extraction of three polyaromatic hydrocarbons, naphthalene, pyrene and benzo(ghi)perylene, is investigated using this sorbent material. A silica based strong cation exchange resin (SCX-2) having a sulfopropyl group is explored and compared with the commercially available silica based extraction sorbent.
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Bartuma, Ninorta. "Optimizing purification of oligonucleotides with reversed phase trityl-on solid phase extraction." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-76844.

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Oligonucleotides are synthetic strings of DNA or RNA used mostly for biochemical analysis and diagnostics. For them to be useful in these fields, a purity over 90% is most often required. However, when synthesizing these sequences, many “failures” (shorter sequences) are made in the step-wise process. The synthesized oligonucleotides need to therefore be purified. This is most often done with gel electrophoresis or liquid chromatography. These methods are, on the other hand, very time-consuming and laborious. Solid phase extraction (SPE) is a much faster purification method if optimized and it can be done with the standard cartridges as well as 96-well plates, that allow many samples to efficiently be run at the same time. With reversed phase (RP) SPE, the dimethoxytrityl (DMT) group, that is attached to the target at the final synthesis step, can be used for stronger retention to the bed sorbent and leaving only the target at the final eluting stage. The impurities without a DMT-on group, that do not adsorb to the sorbent, are washed away in earlier steps. The purpose of this study is to optimize an SPE method for purification of oligonucleotides. Two different cartridges, Clarity QSP (Phenomenex) and Glen-Pak (Glen Research) were used. The purity analysis and oligonucleotide identification were done using anion exchange - high performance liquid chromatography (AIE-HPLC) and time-of-flight mass spectrometry (TOF MS). To conclude, Clarity QSP achieved, at the most, a purity of 68.8% with the recommended SPE steps by Phenomenex. Alterations in the extraction procedure resulted in similar purity or lower. Glen-Pak reached a peak purity of 78.8% when doing a double salt wash of 5% ACN in 2 M sodium chloride and another double wash after detritylation with 1% acetonitrile. This method has to be further optimized in order to reach a purity of at least 90% to be useful in industrial settings.
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Karlsson, Tufuga Anna. "Extraction efficacy of oil samples in forensic investigations using solid phase extraction (SPE)." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-84464.

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This study aims to complement the internationally implemented method “CEN/TR 15522-2: 2012 WATERBORNE PETROLEUM AND PETROLEUM PRODUCTS - PART 2” (CEN). It is a method for forensic investigations on oil spill identification using gas chromatography coupled with low resolution mass spectrometry in electron ionisation mode (GC-EI-MS), in single ion monitoring mode (SIM). The method uses hydrocarbon fingerprints and biomarker abundances to compare oils from spill sources with oil from suspected sources. This method is implemented by the national forensic centre (NFC) with their main object to perform and develop forensic investigations for successful law enforcement.  The experiment uses four different matrices common within the NFC department: wood ash, soil, fabric and cotton swabs. The method evaluates how different sample preparation and clean-up techniques can extract crude oil and heavy fuel oil without losing important information such as the relative abundance of so-called biomarkers typically looked for in international standard praxis in forensic investigations. In conclusion the implemented CEN method showed a reasonably good extraction from matrixes. Extraction of biomarkers were generally quantitative. Extractions of PAHs worked best in soil and cotton swab matrices. In ash samples, the extraction was not very efficient (between 20-80%). It seems that the PAHs strongly bind to active coal in the ash and cannot be extracted fully. It was also evident that the fabric matrix used was problematic for PAH extraction. The fabric itself seemed to release compounds which interfere with the analysis. In soil samples, 31abR (a biomarker compound) was a reoccurring interference from the matrix. Furthermore, analysis of isoprenoids and alkanes had a very broad analytical variation, seen by that the analytical response for these compounds vary greatly among different samples. SPE-extractions did not work well enough following the protocol in this study to be included as a sample preparation step at the moment. More optimization would be needed before the method could be included as an implemented method.
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Morrison, Erin R. "Can We Re-use “Single-Use” Solid Phase Extraction Cartridges?" Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7065.

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Organic and inorganic compounds are present as contaminants in varying concentrations throughout our water cycle. Examples of these contaminants include the endocrine disrupting compounds (EDCs) bisphenol-A (BPA) and 17β-estradiol (E2) from plastics and pharmaceutical use. It can be necessary to obtain the concentration of these compounds within the water cycle for analysis by interested parties such as research groups, regulatory agencies, and private organizations. These concentrations, however, can be too dilute within the initial sample for analysis. Therefore it is necessary to concentrate the compound of interest (analyte) prior to analysis. One such way to do this is by way of Solid Phase Extraction (SPE). SPE uses a small cartridge which contains chromatographic packing material to chemically extract analytes from a water sample onto a solid phase. To increase concentration, these analytes are then transferred (eluted) to a substantially smaller volume of organic solvent for eventual analyses. These commercially available cartridges are relatively inexpensive, approximately $5 each. However, these cartridges are labeled as single use. In large-scale analyses, this can quickly add up to a sizable percentage of the analysis budget. Additionally, sizable waste volumes can be generated from these analyses in the form of non-degradable polypropylene plastic. If these cartridges can be re-used, material costs as well as waste volumes can be substantially reduced. However, little is known regarding how the quality of analysis degrades with cartridge re-use. The objective of this project is to evaluate the number of times SPE cartridges can be reused without compromising the results of the subsequent analyses. Based on a review of prior literature, I identified and developed protocols for extracting analytes (BPA and E2) from water via SPE, then analyzing them with gas chromatography and mass spectrometry (GC-MS). These protocols have been developed to mimic those employed by research labs, industry, and other entities for which the results of this study would be most applicable. The only deviation is the re-use of the cartridge rather than disposal and replacement. One type of commercially available SPE cartridge (Oasis HLB, Waters Inc., Milford, MA) was used and two water types were tested. The water was spiked with fixed concentrations of BPA and E2, and then analyzed by way of SPE/GC-MS. For both water types, I performed multiple SPE runs on 10 cartridges each. I tracked the history of GC-MS peak areas, which indicate apparent analyte concentration. Peak area data were analyzed as a function of the number of analyses performed (run number), and evaluated for statistically significant changes as well as overall trends. Statistically significant change and/or trends would indicate that the cartridge had exceeded the maximum allowable number of re-uses and would thereby identify the number of times the “single-use” cartridge can reliably be re-used. Peak area history for 20 SPE runs per cartridge for pure water samples and 10 SPE runs for wastewater effluent showed no statistically significant changes or trends on peak area. This indicates that cartridges can be re-used at least 10 times without compromising the integrity of water sample analysis for the EDCs considered in this study.
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Saulitis, Barbara Susan. "Solid phase extraction of aldosterone and analysis using amperometric detection /." Connect to online version, 1996. http://hdl.handle.net/1989/3559.

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Rashid, Badrul Amini Abdul. "Development of selective solid phase extraction sorbents for drug bioanalysis." Thesis, University of Surrey, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244830.

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Raisglid, Margaret Ellen. "Factors affecting the selectivity and efficiency of solid-phase extraction." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/282246.

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The modified surface of solid phase extraction sorbents is studied with respect to the impact on the isolation and purification of analytes. Interactions at the interface are characterized by quantifying recoveries of a broad range of analytes, on a variety of surfaces, and under various extraction conditions. Bonded phases of varying hydrocarbon chain length are studied. A hydrophobic surface (e.g., C18) favors the retention of small polar compounds, while a more polar surface (C2) favors the elution of larger hydrophobic compounds. A compromise phase (C8) improves overall recoveries, while analyte recoveries were optimized by extraction onto stacked and layered phases. Analytes are retained by different mechanisms and under different solvent conditions. Selective elution of analytes is achieved by judiciously choosing the elution solvent. Data obtained from comparing the time requirements for drying various phases are consistent with previously developed models of the bonded silica surface. The impact of the presence of water on the elution of analytes is also studied. Experiments are presented where increasing concentrations of organic solvent are added to the sample matrix. Recoveries for polar compounds dropped as the matrix became more energetically favorable. Recoveries improved for hydrophobic species as the formation of agglomerations was disrupted. The impact of sample loading rates on analyte recoveries is studied. No significant differences in recoveries of a broad range of non-ionizable analytes are observed for loading rates ranging from 8 to 30 mL per minute on a 13 mm diameter x 15 mm height sorbent bed. The impact of the porous nature of the extraction sorbent on analyte recoveries, under different conditions of temperature and solvent contact time, is studied. A dependence on the diffusion of analytes into and out of the pores is observed. Experiments are devised to characterize the role of particulates in the sample matrix during solid phase extraction. Parameters studied include size of particles in the matrix, in the sorbent bed, porosity of the frit retaining the sorbent, and utility of a depth filter. Samples laden with particulates are spiked with trace analytes and show no reduction in recoveries resulting from the presence of particulate matter.
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Books on the topic "Solid-phase extraction"

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Analytical solid-phase extraction. New York: Wiley-VCH, 1999.

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S, Mills M., ed. Solid-phase extraction: Principles and practice. New York: Wiley, 1998.

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Solid phase microextraction: Theory and practice. New York: Wiley-VCH, 1997.

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Simpson, Nigel J. K., 1963-, ed. Solid-phase extraction: Principles, techniques, and applications. New York: Marcel Dekker, 2000.

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Janusz, Pawliszyn, and Royal Society of Chemistry (Great Britain), eds. Applications of solid phase microextraction. Cambridge: Royal Society of Chemistry, 1999.

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Telepchak, Michael J., Thomas F. August, and Glynn Chaney. Forensic and Clinical Applications of Solid Phase Extraction. Totowa, NJ: Humana Press, 2004. http://dx.doi.org/10.1007/978-1-59259-292-0.

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Scheppers Wercinski, Sue Ann, 1957- and NetLibrary Inc, eds. Solid phase microextraction: A practical guide. New York: Marcel Dekker, 1999.

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Viorica, Lopez-Avila, and Environmental Monitoring Systems Laboratory (Las Vegas, Nev.), eds. Evaluation of sample extract cleanup using solid-phase extraction cartridges. Las Vegas, NV: U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory, 1990.

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Viorica, Lopez-Avila, and Environmental Monitoring Systems Laboratory (Las Vegas, Nev.), eds. Evaluation of sample extract cleanup using solid-phase extraction cartridges. Las Vegas, NV: U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory, 1990.

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D, McDonald Patrick, Bouvier Edouard S. P, and Millipore Corporation. Waters Chromatography Division., eds. Solid phase extraction: Applications guide and bibliography : a resource for sample preparation methods development. 6th ed. Milford, Mass: Waters, 1995.

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Book chapters on the topic "Solid-phase extraction"

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Majors, Ronald E. "Solid-Phase Extraction." In Handbook of Sample Preparation, 53–79. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780813823621.ch4.

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Helle, Norbert, Meike Baden, and Kaj Petersen. "Automated Solid Phase Extraction." In Methods in Molecular Biology, 93–129. Totowa, NJ: Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-136-9_5.

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Vidal, C., and W. R. Külpmann. "Solid-phase Micro-Extraction." In Lexikon der Medizinischen Laboratoriumsdiagnostik, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-49054-9_2843-1.

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Vidal, C., and W. R. Külpmann. "Solid-phase Micro-Extraction." In Springer Reference Medizin, 2180. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-48986-4_2843.

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Telepchak, Michael J., Thomas F. August, and Glynn Chaney. "Solid Phase Extraction Troubleshooting." In Forensic and Clinical Applications of Solid Phase Extraction, 147–68. Totowa, NJ: Humana Press, 2004. http://dx.doi.org/10.1007/978-1-59259-292-0_8.

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Bagheri, Ahmad Reza, and Hian Kee Lee. "Micro-solid-phase extraction." In Microextraction Techniques, 11–51. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-50527-0_2.

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Whelpton, Robin, and Peter R. Hurst. "Solid-Phase Extraction: Personal Experiences." In Bioanalysis of Drugs and Metabolites, Especially Anti-Inflammatory and Cardiovascular, 289–94. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4757-9424-3_41.

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Telepchak, Michael J., Thomas F. August, and Glynn Chaney. "Introduction to Solid Phase Extraction." In Forensic and Clinical Applications of Solid Phase Extraction, 1–39. Totowa, NJ: Humana Press, 2004. http://dx.doi.org/10.1007/978-1-59259-292-0_1.

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Telepchak, Michael J., Thomas F. August, and Glynn Chaney. "Silica-Based Solid Phase Extraction." In Forensic and Clinical Applications of Solid Phase Extraction, 41–53. Totowa, NJ: Humana Press, 2004. http://dx.doi.org/10.1007/978-1-59259-292-0_2.

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Telepchak, Michael J., Thomas F. August, and Glynn Chaney. "Optimizing Solid Phase Extraction Methods." In Forensic and Clinical Applications of Solid Phase Extraction, 109–28. Totowa, NJ: Humana Press, 2004. http://dx.doi.org/10.1007/978-1-59259-292-0_6.

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Conference papers on the topic "Solid-phase extraction"

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Rutz, Jeffrey A., John R. Schultz, and Richard L. Sauer. "Solid Phase Extraction of Polar Compounds in Water." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1997. http://dx.doi.org/10.4271/972465.

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Tanasescu, Elena-Cornelia, Mihaela-Cristina Lite, Elena Perdum, Lucia Oana Secăreanu, Ovidiu Iordache, Irina-Mariana Sandulache, and Lucian Gabriel Radu. "Overview on the New Generation of Extraction Technique: Fabric Solid-Phase Extraction." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.v.8.

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Fabric phase sorptive extraction (FPSE) is a new-generation of sample preparation technique that effectively combines representative characteristics of solid-phase microextraction – SPME (equilibrium-based extraction) and solid phase extraction – SPE (exhaustive extraction). FPSE was introduced in 2014 by Kabir A. and Furon K.G. FPSE utilizes a fabric substrate (natural or synthetic such as cotton or polyester) that is chemically coated with a hybrid sorbent (organic-inorganic sol-gel). The entire assembly (fabric substrate coated with the sol-gel polymer) results in a fast and sensitive micro-extraction device. The FPSE development process can be described in 3 main steps: (1) Preparation of the fabric substrate for sol-gel coating, (2) preparation of the sol-solution for coating the substrate, and (3) formation of sol-gel coatings on the fabric substrate. Using this technique can be ensured a faster, cleaner, and with a high concentration of analyte solution. FPSE is a method that can be easily modified and used in different types of applications. For this reason, FPSE is increasingly used in the scientific community dealing with sample pretreatment. By using this technique, promising results have been obtained both for the extraction and determination of certain analytes from environmental samples, as well as from other types of samples, with complex matrices (food and biological samples). This study aims to summarize the existing data on FPSE and to briefly present this innovative method.
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Chen, Xiaoguo, Shenghu Zhang, Yang Zhang, and Bangding Xiao. "Purification of Microcystin-LR by Solid-Phase Extraction Procedure." In 2009 3rd International Conference on Bioinformatics and Biomedical Engineering (iCBBE). IEEE, 2009. http://dx.doi.org/10.1109/icbbe.2009.5163264.

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Dias, Neil C., James S. Fritz, and Marc D. Porter. "Applications of Colorimetric Solid-Phase Extraction with Negligible Depletion." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-3065.

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Wulandari, Meyliana, M. B. Amran, A. B. Descalzo Lopez, J. L. Urraca, and M. C. Moreno-Bondi. "Molecularly imprinted polymers-curcuminoids and its application for solid phase extraction." In 4TH INTERNATIONAL CONFERENCE ON MATHEMATICS AND NATURAL SCIENCES (ICMNS 2012): Science for Health, Food and Sustainable Energy. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4868828.

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Zia, Asif I., Nasrin Afsarimanesh, Li Xie, Anindya Nag, I. H. Al-Bahadly, P. L. Yu, and Jurgen Kosel. "Improved detection limits for phthalates by selective solid-phase micro-extraction." In 2015 9th International Conference on Sensing Technology (ICST). IEEE, 2015. http://dx.doi.org/10.1109/icsenst.2015.7438493.

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Shih, Chien-Ju, Neil C. Dias, and Marc D. Porter. "Detection of Cadmium(II) in Water Using Colorimetric-Solid Phase Extraction." In International Conference On Environmental Systems. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2005. http://dx.doi.org/10.4271/2005-01-2890.

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Dyer, R. A., J. L. Balaam, and K. V. Thomas. "The development of a solid phase extraction (SPE) system for environmental monitoring." In 2004 USA-Baltic International Symposium. IEEE, 2004. http://dx.doi.org/10.1109/baltic.2004.7296805.

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Punt, Tiaan, Kerstin Forsberg, and Michael Svärd. "High-Performance Solid-Phase Extraction Chromatography for Recycling of NdFeB Magnet Waste." In RawMat 2023. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/materproc2023015067.

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Fleischer, Heidi, Thomas Roddelkopf, Sybille Horn, John Fuller, and Kerstin Thurow. "Metrological Quality Assurance of Automated Solid Phase Extraction in Compound Oriented Measurements." In 2023 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE, 2023. http://dx.doi.org/10.1109/i2mtc53148.2023.10176112.

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Reports on the topic "Solid-phase extraction"

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Ambrose, Diana. Novel materials and methods for solid-phase extraction and liquid chromatography. Office of Scientific and Technical Information (OSTI), June 1997. http://dx.doi.org/10.2172/537289.

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Dumont, Philip John. New methods and materials for solid phase extraction and high performance liquid chromatography. Office of Scientific and Technical Information (OSTI), April 1996. http://dx.doi.org/10.2172/219499.

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Gazda, Daniel Bryan. Development of colorimetric solid Phase Extraction (C-SPE) for in-flight Monitoring of spacecraft Water Supplies. Office of Scientific and Technical Information (OSTI), January 2004. http://dx.doi.org/10.2172/835309.

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Freeze, Ronald. Improved resins and novel materials and methods for solid phase extraction and high performance liquid chromatography. Office of Scientific and Technical Information (OSTI), October 1997. http://dx.doi.org/10.2172/587891.

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Conrady, Morgan, Markus Bauer, Kyoo Jo, Donald Cropek, and Ryan Busby. Solid-phase microextraction (SPME) for determination of geosmin and 2-methylisoborneol in volatile emissions from soil disturbance. Engineer Research and Development Center (U.S.), October 2021. http://dx.doi.org/10.21079/11681/42289.

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A method is described here for the concentration and determination of geosmin and 2-methylisoborneol (2-MIB) from the gaseous phase, with translation to field collection and quantification from soil disturbances in situ. The method is based on the use of solid-phase microextraction (SPME) fibers for adsorption of volatile chemicals from the vapor phase, followed by desorption into a gas chromatograph-mass spectrometer (GC-MS) for analysis. The use of a SPME fiber allows simple introduction to the GC-MS without further sample preparation. Several fiber sorbent types were studied and the 50/30 μm DVB/CAR/PDMS was the best performer to maximize the detected peak areas of both analytes combined. Factors such as extraction temperature and time along with desorption temperature and time were explored with respect to analyte recovery. An extraction temperature of 30 ◦C for 10 min, with a desorption temperature of 230 ◦C for 4 min was best for the simultaneous analysis of both geosmin and 2-MIB without complete loss of either one. The developed method was used successfully to measure geosmin and 2-MIB emission from just above disturbed and undisturbed soils, indicating that this method detects both compounds readily from atmospheric samples. Both geosmin and 2-MIB were present as background concentrations in the open air, while disturbed soils emitted much higher concentrations of both compounds. Surprisingly, 2-MIB was always detected at higher concentrations than geosmin, indicating that a focus on its detection may be more useful for soil emission monitoring and more sensitive to low levels of soil disturbance.
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Myers, Karen F. Determination of Chlorinated Phenoxyacid Herbicides in Water and Sediment by Solid Phase Extraction and High-Performance Liquid Chromatography. Fort Belvoir, VA: Defense Technical Information Center, November 1992. http://dx.doi.org/10.21236/ada260201.

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Crouch, Rebecca, Jared Smith, Bobbi Stromer, Christian Hubley, Samuel Beal, Guilherme Lotufo, Afrachanna Butler, et al. Methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil/sediment, and tissue matrices. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41720.

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Currently, no standard method exists for analyzing insensitive munition (IM) compounds in environmental matrices, with or without concurrent legacy munition compounds, resulting in potentially inaccurate determinations. The primary objective of this work was to develop new methods of extraction, pre-concentration, and analytical separation/quantitation of 17 legacy munition compounds along with several additional IM compounds, IM breakdown products, and other munition compounds that are not currently included in U.S. Environmental Protection Agency (EPA) Method 8330B. Analytical methods were developed to enable sensitive, simultaneous detection and quantitation of the 24 IM and legacy compounds, including two orthogonal high-performance liquid chromatography (HPLC) column separations with either ultraviolet (UV) or mass spectrometric (MS) detection. Procedures were developed for simultaneous extraction of all 24 analytes and two surrogates (1,2-dinitrobenzene, 1,2-DNB; o-NBA) from high- and low-level aqueous matrices and solid matrices, using acidification, solid phase extraction (SPE), or solvent extraction (SE), respectively. The majority of compounds were recovered from four tissue types within current limits for solids, with generally low recovery only for Tetryl (from 4 to 62%). A preparatory chromatographic interference removal procedure was adapted for tissue extracts, as various analytical interferences were observed for all studied tissue types.
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Schmidt, L. W. Chemically modified polymeric resins for solid-phase extraction and group separation prior to analysis by liquid or gas chromatography. Office of Scientific and Technical Information (OSTI), July 1993. http://dx.doi.org/10.2172/10116845.

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Hill, April Ann. The Development and Optimization of Techniques for Monitoring Water Quality on-Board Spacecraft Using Colorimetric Solid-Phase Extraction (C-SPE). Office of Scientific and Technical Information (OSTI), December 2007. http://dx.doi.org/10.2172/933139.

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Crouch, Rebecca, Jared Smith, Bobbi Stromer, Christian Hubley, Samuel Beal, Guilherme Lotufo, Afrachanna Butler, et al. Preparative, extraction, and analytical methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil or sediment, and tissue matrices. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41480.

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No standard method exists for determining levels of insensitive munition (IM) compounds in environmental matrices. This project resulted in new methods of extraction, analytical separation and quantitation of 17 legacy and 7 IM compounds, daughter products of IM, and other munition compounds absent from USEPA Method 8330B. Extraction methods were developed for aqueous (direct-injection and solid-phase extraction [SPE]), soil, sediment, and tissue samples using laboratory-spiked samples. Aqueous methods were tested on 5 water sources, with 23 of 24 compounds recovered within DoD QSM Ver5.2 limits. New solvent extraction (SE) methods enabled recovery of all 24 compounds from 6 soils within QSM limits, and a majority of the 24 compounds were recovered at acceptable levels from 4 tissues types. A modified chromatographic treatment method removed analytical interferences from tissue extracts. Two orthogonal high-performance liquid chromatography-ultraviolet (HPLC-UV) separation methods, along with an HPLC–mass spectrometric (HPLC-MS) method, were developed. Implementing these new methods should reduce labor and supply costs by approximately 50%, requiring a single extraction and sample preparation, and 2 analyses rather than 4. These new methods will support environmental monitoring of IM and facilitate execution of risk-related studies to determine long-term effects of IM compounds.
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