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Relevant bibliographies by topics / Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography

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Academic literature on the topic 'Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography"

1

Kataev, S. S., O. N. Dvorskaya, M. A. Gofenberg, A. V. Labutin, and A. B. Melentyev. "ANALYTICAL FEATURES OF SYNTHETIC MDMB(N)-073F CANNABIMIMETICS AND ITS MARKERS IN BIOLOGICAL MATERIAL." Pharmacy & Pharmacology 7, no. 4 (2019): 184–97. http://dx.doi.org/10.19163/2307-9266-2019-7-4-184-197.

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The aim of the research is to study both analytical features of synthetic MDMB(N)-073F cannabimimetics of indazole carboxamides group by gas chromatography methods combined with tandem mass spectrometry (GC-MS) and high performance liquid chromatography with high-resolution mass spectrometry (HPLC-HRMS) as well as characteristics of the major MDMB(N)-073F metabolite, its glucuronide and derivatives, using gas chromatography with mass-spectrometric (GC-MS) detection and high-performance liquid chromatography (HPLC) with MS/MS mass spectrometry (HPLC-MS/MS) in urine samples to be applied in expe

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2

Rawle, N. W., R. G. Willis, and J. D. Baty. "Identification of triacylglycerols by high-performance liquid chromatography-gas-liquid chromatography and liquid chromatography-mass spectrometry." Analyst 115, no. 5 (1990): 521. http://dx.doi.org/10.1039/an9901500521.

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M Pavan Kumar, A Naga Akshay Kumar, D Pooja, M Ahalya, SK Mastan Vali, and Y Yamini. "A comprehensive study on sitagliptin in the treatment of Type-II Diabetes." World Journal of Biology Pharmacy and Health Sciences 20, no. 3 (2024): 120–29. https://doi.org/10.30574/wjbphs.2024.20.3.0988.

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Sitagliptin is an oral antihyperglycemic drug classified as a dipeptidyl peptidase-4 (DPP-4) inhibitor; commonly used in the treatment of type 2 diabetes. It works by promoting insulin secretion and decreasing glucagon levels through the inhibition of incretin degradation in a glucose-dependent manner. As of 2013; it was the second-highest selling medication in the United States. This review highlights various analytical techniques for the quantification of sitagliptin; either alone or in combination with other agents. These methods include spectrometry; high-performance liquid chromatography

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4

Raglione, Thomas V., Jo Anna Troskosky, and Richard A. Hartwick. "On-line microbore high-performance liquid chromatography—capillary gas chromatography—mass spectrometry." Journal of Chromatography A 409 (January 1987): 205–12. http://dx.doi.org/10.1016/s0021-9673(01)86796-0.

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Raglione, Thomas V., Jo Anna Troskosky, and Richard A. Hartwick. "On-line microbore high-performance liquid chromatography—capillary gas chromatography—mass spectrometry." Journal of Chromatography A 409 (January 1987): 213–21. http://dx.doi.org/10.1016/s0021-9673(01)86797-2.

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Wei, Gao-Ling, and Eddy Y. Zeng. "Gas chromatography-mass spectrometry and high-performance liquid chromatography-tandem mass spectrometry in quantifying fatty acids." TrAC Trends in Analytical Chemistry 30, no. 9 (2011): 1429–36. http://dx.doi.org/10.1016/j.trac.2011.05.005.

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Cao, Yiwen, Shenjie Zhu, Lin Zhang, Qun Cui, and Haiyan Wang. "Qualitative and quantitative determination of trace aldehydes and ketones in food preservative propionic acid for quality improvement." Analytical Methods 13, no. 26 (2021): 2989–96. http://dx.doi.org/10.1039/d1ay00742d.

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Aiming at the difficulty in qualitative and quantitative analysis of trace compositions in food preservative propionic acid, gas chromatography-mass spectrometry, high performance liquid chromatography and gas chromatography were used in this paper.

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Ogorka, Jörg, Gerhard Schwinger, Guy Bruat, and Volker Seidel. "On-line coupled reversed-phase high-performance liquid chromatography—gas chromatography—mass spectrometry." Journal of Chromatography A 626, no. 1 (1992): 87–96. http://dx.doi.org/10.1016/0021-9673(92)85332-n.

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Chappell, Colin G., Colin S. Creaser, and Martin J. Shepherd. "On-line Derivatisation in Combined High-performance Liquid Chromatography–Gas Chromatography–Mass Spectrometry." Analyst 122, no. 9 (1997): 955–62. http://dx.doi.org/10.1039/a702003a.

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Raatikainen, Olavi, Seppo Auriola, and Jouko Tuomisto. "Identification of aromatic moieties and mycosamine in antifungal heptaenes with high-performance liquid chromatography, high-performance liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry." Journal of Chromatography A 585, no. 2 (1991): 247–54. http://dx.doi.org/10.1016/0021-9673(91)85084-s.

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Dissertations / Theses on the topic "Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography"

1

Sun, Xiaobo. "Forensic Applications of Gas Chromatography/Mass Spectrometry, High Performance Liquid Chromatography--Mass Spectrometry and Desorption Electrospray Ionization Mass Spectrometry with Chemometric Analysis." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1329517616.

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Ramirez, Alejandro Javier Chambliss C. Kevin Brooks Bryan William. "Determination of pharmaceuticals and personal care products in fish using high performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry." Waco, Tex. : Baylor University, 2007. http://hdl.handle.net/2104/5119.

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Law, Brandon F. "Characterization of laboratory simulated road paving-like asphalt by high performance liquid chromatography and gas chromatography-mass spectrometry." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4723.

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Racharla, Archana. "Survey of Flavonoids and Their Distribution in Different Kinds of Onions Using High Performance Liquid Chromatography and Gas Chromatography Mass Spectrometry." Digital Commons @ East Tennessee State University, 2011. https://dc.etsu.edu/etd/1376.

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This research is done to determine the distribution of flavonoids in diverse varieties of onions (commercial and wild onions). Reflux extraction method was done on dried onions and the abstracts were analyzed subsequently by high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GCMS). Statistical calculations were done to see if there are significant differences in the varieties of onions studied from the chromatographic profiles obtained. The chromatograms obtained were patterned using visual observations, scatter plot study, correlation co-efficient, and ANO

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PAWLECKI-VONDERHEIDE, ANNE MARIE. "ELEMENTAL SPECIATION BY CHROMATOGRAPHIC SEPARATIONS INTERFACED TO INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1054751575.

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SILVA, ALEXANDRE E. de S. da. "Identificação e quantificação de ácidos graxos em frutos amazônicos com potencial farmacológico via técnicas cromatográficas." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10149.

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Made available in DSpace on 2014-10-09T12:35:19Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:08:57Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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Lai, Sin Pin. "Furan measurement in transformer oil by UV-Vis spectroscopy using fuzzy logic approach." Thesis, Curtin University, 2009. http://hdl.handle.net/20.500.11937/2342.

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An Ultraviolet to Visible (UV-Vis) spectroscopic analysis based on fuzzy logic approach has been developed for furan content measurement in transformer oil. Following the successful identification and quantification of furan derivatives in transformer oil by ASTM D5837 standard, the new approach is able to approximate the furan content more conveniently and economically. As furan concentration level would determine the absorption intensity in UV-Vis spectral range, the fuzzy logic software model developed would exploit this characteristic to aggregate the furans content level in transformer oi

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Collin, Olivier L. "Development of a Novel Tandem Mass Spectrometry Technique for Forensic and Biological Applications." View abstract, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:3292877.

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Lai, Sin Pin. "Furan measurement in transformer oil by UV-Vis spectroscopy using fuzzy logic approach." Curtin University of Technology, Department of Electrical and Computer Engineering, 2009. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=128452.

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An Ultraviolet to Visible (UV-Vis) spectroscopic analysis based on fuzzy logic approach has been developed for furan content measurement in transformer oil. Following the successful identification and quantification of furan derivatives in transformer oil by ASTM D5837 standard, the new approach is able to approximate the furan content more conveniently and economically. As furan concentration level would determine the absorption intensity in UV-Vis spectral range, the fuzzy logic software model developed would exploit this characteristic to aggregate the furans content level in transformer oi

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Steele, Valerie J. "Organic residue analysis of Red Lustrous Wheelmade Ware vessels traded across the eastern Mediterranean during the Late Bronze Age." Thesis, University of Bradford, 2008. http://hdl.handle.net/10454/5519.

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Red Lustrous Wheelmade Ware (RLWm ware) transport and storage vessels have been excavated from Late Bronze Age (LBA) sites across the eastern Mediterranean. These distinctive vessels were traded for the valuable commodity they contained so far unidentified. Seventy-three sherds (61 RLWm ware, 12 in local fabrics) and two visible residues were analysed for organic residues using standard lipid extraction techniques. Seven residues from a previous study were re-examined. Gas chromatography-mass spectrometry identified four materials - beeswax, bitumen, fat/oil and resin. Beeswax, found only in v

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Books on the topic "Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography"

1

Oehme, Michael. Pratical introduction to GC-MS analysis with quadrupoles. Edited by Dünges Wolfgang. Heidelberg, 1999.

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2

McMaster, Marvin. LC/MS. John Wiley & Sons, Ltd., 2005.

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3

Loader, E. Investigation into the application of high performance liquid chromatography electrospray mass spectrometry for the screening of anabolic steroids. UMIST, 1993.

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4

T, Furlong Edward, Geological Survey (U.S.), and National Water-Quality Laboratory (U.S.), eds. Determination of human-health pharmaceuticals in filtered water by chemically modified styrene-divinylbenzene resin-based solid-phase extraction and high-performance liquid chromatography/mass spectrometry. U.S. Dept. of the Interior, U.S. Geological Survey, 2008.

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T, Furlong Edward, Geological Survey (U.S.), and National Water-Quality Laboratory (U.S.), eds. Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory: Determination of pesticides in water by graphitized carbon-based solid-phase extraction and high-performance liquid chromatography/mass spectrometry. U.S. Dept. of the Interior, U.S. Geological Survey, 2001.

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6

Hyphenated and Alternative Methods of Detection in Chromatography (Chromatographic Science). CRC, 2008.

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7

Naushad, Mu, and Mohammad Rizwan Khan. Ultra Performance Liquid Chromatography Mass Spectrometry. Taylor & Francis Group, 2021.

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8

Lim, C. K. Methods in Chromatography. World Scientific Publishing Company, 2004.

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9

Lim, Chang-Kee. High-Performance Liquid Chromatography and Mass Spectrometry of Porphyrins, Chlorophylls and Bilins. World Scientific Publishing Co Pte Ltd, 2009.

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High-Performance Liquid Chromatography and Mass Spectrometry of Porphyrins, Chlorophylls and Bilins. World Scientific Publishing Co Pte Ltd, 2009.

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Book chapters on the topic "Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography"

1

Borghi, Monica, Leonardo Perez de Souza, and Alisdair R. Fernie. "Measurement of Flower Metabolite Concentrations Using Gas Chromatography–Mass Spectrometry and High-Performance Liquid Chromatography–Mass Spectrometry." In Plant Gametogenesis. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2253-7_1.

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Weaver, R. J., J. P. G. Wilkins, A. T. Roberts, and J. P. Edwards. "Use of Thin-Layer Chromatography, High Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometry to Investigate the Relationship Between Juvenile Hormone Titre and Corpus Allatum Activity in Adult Male Periplaneta Americana." In Chromatography and Isolation of Insect Hormones and Pheromones. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-8062-7_2.

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Ismail, Baraem P. "Mass Spectrometry with High-Performance Liquid Chromatography." In Food Analysis Laboratory Manual. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-44127-6_9.

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Ismail, B. Pam. "Mass Spectrometry with High-Performance Liquid Chromatography." In Food Science Text Series. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-44970-3_10.

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Hansen, Steen Honoré, and Leon Reubsaet. "High-Performance Liquid Chromatography (HPLC) and High-Performance Liquid Chromatography-Mass Spectrometry (LC-MS)." In Bioanalysis of Pharmaceuticals. John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118716830.ch7.

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Xiong, Zhili, Ying Deng, and Famei Li. "Ultra-High Performance Liquid Chromatography - Mass Spectrometry and Its Application." In Ultra-High Performance Liquid Chromatography and its Applications. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118533956.ch10.

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Kaufmann, Anton. "Quantitative Analysis of Veterinary Drug Residues by Sub 2-µm Particulate High-Performance Liquid Chromatography Columns and Time-of-Flight Mass Spectrometry (UPLC-TOF)." In Liquid Chromatography Time-of-Flight Mass Spectrometry. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470429969.ch9.

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Mudd, A. "High Performance Liquid Chromatography-Mass Spectrometry in the Analysis of Semiochemicals." In Chromatography and Isolation of Insect Hormones and Pheromones. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-8062-7_30.

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Jones, Tammy L., L. Donnelly Betowski, and Jehuda Yinon. "Analysis of Chlorinated Herbicides by High-Performance Liquid Chromatography/Mass Spectrometry." In ACS Symposium Series. American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0420.ch005.

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Anderson, David J. "Heterogeneity of Gangliosides and Advances in High-Performance Liquid Chromatography-Mass Spectrometry and Thin-Layer Chromatography Techniques Used in Their Determination." In Advances in Chromatography. CRC Press, 2024. http://dx.doi.org/10.1201/9781003500568-4.

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Conference papers on the topic "Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography"

1

Jackson, Tracey, and Jonathan Vargas. "Selective Loss of Bulk Corrosion Inhibitor Species When Exposed to Glass, Plastic, and Steel." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-14999.

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Abstract Despite the widespread use of corrosion inhibitors (CIs) in the oil and gas industry much of their complex aggregation and adsorption behavior is still very poorly understood. CIs are surface active species meaning that when they are injected into aqueous solutions they naturally aggregate and migrate to gas-liquid, liquid-liquid, and solid-liquid interfaces. A better understanding of each CI component and how it adsorbs when exposed to various surfaces could lead to improved CI design, higher performance at lower dosages, as well as improved methods for residual detection. This paper

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Barker, Richard, Richard C. Woollam, and William H. Durnie. "Implications of Physical and Chemical Environment on the Distribution of Corrosion Inhibitor Surfactant Components and Mixtures." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00436.

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Abstract Corrosion inhibitors are a proven cost-effective method for internal corrosion protection of carbon steel piping in the presence of CO2-containing brines. The appropriate selection, deployment and performance monitoring are all essential elements ensuring successful application. However, despite many years of use within the oil and gas industry, a clear understanding of the impact of the physical chemistry of surfactants and surfactant mixtures still eludes the industry, and chemical law is often replaced with oilfield lore. In this work, the effect of brine salinity (0.1, 1 and 10 wt

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Jenkins, Alyn, Ian Gilbert, Aiman Kamaruzaman, and Astrid Lone. "Top-of-Line Corrosion Inhibition and Proposal of an Inhibition Mechanism." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11117.

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Abstract Multiphase pipelines manufactured from carbon steel are susceptible to several forms of corrosion, including top-of-line (TOL) corrosion. In wet gas pipelines, produced water can condense at the top of the pipeline when the temperature and pressure along the length of the pipeline decreases. If this happens, TOL corrosion will occur, which can be severe as the pH of the condensed water will be very low (&lt; 5). However, it is possible to mitigate TOL corrosion with the application of corrosion inhibitors. Using corrosion inhibitors to control TOL corrosion in multiphase systems p

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de Vries, J. X., R. Raedsch, A. Stiehl, U. Voelker, I. Walter-Sack, and E. Weber. "EVIDENCE FOR BIIIARY EXCRETION OF PHENPROCOUMON AND ITS METABOLITES IN HUMANS; IDENTIFICATION BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643272.

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Recently it has been shown that in man the oral couma-rin anticoagulant phenprocoumon is eliminated up to 60-70 % in urine and 30-40 % in faeces; in urine phenprocoumon (PH) and its metabolites 7-hydroxy-(7-OH),6-hydroxy-(6-OH) and 4'-hydroxy-(4'-OH) phenprocoumon are present mainly as conjugates. No data so far were available on the biliary excretion of these compounds.We examined bile obtained from four in-patients during PH treatment; bile samples were aspirated in the duodenum at the papilla during routine diagnostic endoscopy and immediately deep frozen before analysis. Samples were extra

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Blebea, Nicoleta Mirela, and Simona Negreș. "METHODS FOR QUANTIFICATION OF THE MAIN CANNABINOIDS IN CBD OIL." In GEOLINKS Conference Proceedings. Saima Consult Ltd, 2021. http://dx.doi.org/10.32008/geolinks2021/b1/v3/13.

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Cannabidiol (CBD) is an alkaloid present in Cannabis sativa, together with tetrahydrocannabinol (THC) and more than 120 other substances belonging to a group of compounds named cannabinoids. Due to the continuous increased usage of CBD oils, it became necessary to be developed efficient methods for the identification of its compounds and especially for the characterization of the cannabinoids from the commercial specimens. Cannabinoids may be detected by many and different analytical methods, including immunoassays (EMIT®, Elisa, fluorescent polarization, radioimmunotest), techniques of flat c

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Law, B., S. Stone, D. Frazer, and P. Siegel. "295. Chemical Characterization of Laboratory Simulated Road Paving-Like Asphalt Fume Generated by Gas Chromatography-Mass Spectrometry and High Performance Liquid Chromatography-Fluorescence Techniques." In AIHce 2005. AIHA, 2005. http://dx.doi.org/10.3320/1.2758760.

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Wei, Na, Heather Kuiper, Hayoung Kim, Jessica Holmes, and Hubert Vesper. "Separation of Fatty Acid Isomers in Human Plasma by Silver Ion High-performance Liquid Chromatography in Conjunction with Gas Chromatography with Negative Chemical Ionization Mass Spectrometry." In Virtual 2021 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2021. http://dx.doi.org/10.21748/am21.199.

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Ogugofor, Martins, Ugochi Njoku, and Obioma Njoku. "Gas chromatography-mass spectrometry and high performance liquid chromatography analyses of <em>Costus afer </em>stem ethyl acetate fraction." In 7th International Electronic Conference on Medicinal Chemistry. MDPI, 2021. http://dx.doi.org/10.3390/ecmc2021-11592.

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Guo, Zhongxian, Qiantao Cai, and Zhaoguang Yang. "Determination of Water-Soluble Organophosphorus Herbicides by Ion Chromatography With Inductively Coupled Plasma Mass Spectrometry Detection." In 1st Water Quality, Drought, Human Health and Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/water2006-20024.

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There is a high risk for human exposure to organophosphorus pesticides through contaminated drinking water. Glyphosate, glufosinate, fosamine and ethephon are among the water-soluble herbicides used currently. Sensitive and rapid analytical methodologies are critical for evaluating their residuals in a broad variety of samples, including environmental waters. However, challenges arise from the inherent chemical properties of the herbicides: strong polarity, high solubility in water, insolubility in organic solvent (except ethephon), absence of chromophore or fluorophore in their molecular stru

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Dagaut, Philippe, Zahraa Dbouk, and Roland Benoit. "On the Combustion of Terpenes Biofuels and Pollutants Characterization Through High-Resolution Mass Spectrometry." In ASME Turbo Expo 2024: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/gt2024-121549.

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Abstract Terpenes are a class of hydrocarbon compounds naturally found in plants. They already have a variety of uses, such as flavor and fragrance additives. Also, they can be blended with conventional or synthetic liquid fuels. Understanding the kinetics of terpenes combustion is important for the development of cleaner combustion, as well as for evaluating associated air pollution and environmental impacts. Therefore, the oxidation of terpenes has been performed under well-controlled conditions. The cool flame oxidation of limonene, α-pinene, and β-pinene, terpenes commonly emitted by veget

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Reports on the topic "Gas Chromatography-Mass Spectrometry / High Performance Liquid Chromatography"

1

Bass, D. A., J. S. Yaeger, J. S. Crain, et al. Arsenic speciation using high performance liquid chromatography-inductively coupled plasma-mass spectrometry. Office of Scientific and Technical Information (OSTI), 1995. http://dx.doi.org/10.2172/102125.

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Bass, D. A., J. S. Yaeger, K. J. Parish, et al. Arsenic speciation in soil using high performance liquid chromatography/inductively coupled plasma/mass spectrometry. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/432912.

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Freye, Christopher. Ultra High Performance Liquid Chromatography with Quadrupole Time-of-Flight Mass Spectrometry and Fisher Ratio Analysis for Discovery-Based Analysis. Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1648054.

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Kimble, Ashley, Derek Muensterman, Liliana Cahuas, et al. Extraction and analysis of per- and polyfluoroalkyl Substances (PFAS) from Meals Ready-to-Eat (MRE) films using GC-MS and LC-MS/MS. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47114.

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This work was in response to the Defense Logistic Agency’s (DLA) Subsistence Network Broad Agency Announcement, BAA-0003-16 addressing 2019 NDAA Section 329 that states packaging materials used for Meals Ready-to-Eat (MRE) that contact food products must be free of per- and polyfluoroalkyl substances (PFAS). This was addressed by determining the presence or absence of PFAS on MREs by extraction followed by gas chromatography mass spectrometry (GC-MS) and liquid chromatography tandem mass spectrometry (LC-MS/MS). Any samples positive for PFAS were quantitated using LC triple quadrupole (QqQ) MS

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Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory; determination of pesticides in water by graphitized carbon-based solid-phase extraction and high-performance liquid chromatography/mass spectrometry. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri014134.

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