Results 71 to 80 of about 403,538 (154)

Determination of Multiclass Pharmaceutical Residues in Milk Using Modified QuEChERS and Liquid-Chromatography-Hybrid Linear Ion Trap/Orbitrap Mass Spectrometry: Comparison of Clean-Up Approaches and Validation Studies [PDF]

, 2023
Ourania Koloka, Marioanna Koulama, Dimitra Hela, Triantafyllos A. Albanis, Ioannis Konstantinou   +4 more
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Identification of Trenbolone Metabolites Using Hydrogen Isotope Ratio Mass Spectrometry and Liquid Chromatography/High Accuracy/High Resolution Mass Spectrometry for Doping Control Analysis

Frontiers in Chemistry, 2020
Trenbolone is a synthetic anabolic-androgenic steroid, which has been misused for performance enhancement in sports. The detection of trenbolone doping in routine sports drug testing programs is complex as methods utilizing gas chromatography/mass ...
Marlen Putz, Thomas Piper, Mario Thevis
doaj   +1 more source

Gas-liquid chromatography-mass spectrometry of synthetic ceramides containing phytosphingosine

Journal of Lipid Research, 1970
Ceramides containing phytosphingosine as base and one of the fatty acids 16:0, 18:0, 20:0, 22:0, 23:0, and 24:0, were prepared by direct coupling in the presence of a mixed carbodiimide. The ceramides were analyzed as the 1,3,4-tri-O-trimethylsilyl ether
Sven Hammarström
doaj   +1 more source

Development of a fast‐switching dual (ESI/APCI) ionization source for liquid chromatography/mass spectrometry [PDF]

, 2020
Dominik Brecht, Florian Uteschil, Oliver J. Schmitz   +2 more
openalex   +1 more source

Fate of drugs during wastewater treatment [PDF]

, 2013
This is the post-print version of the final paper published in TrAC Trends in Analytical Chemistry. The published article is available from the link below.
Andrási, Bagnall, Baker, Baker, Barceló, Bedding, Bernhard, Brodin, Bruce Petrie, Buisson, Carbonaro, Chen, Chiaia-Hernandez, Chiu, Clara, Coelho, Duan, Elise Cartmell, Ewan J. McAdam, Ferrer, Galus, Gardner, Gaulke, Gomes, Gomes, Gomes, Gong, Grabic, Gracia-Lor, Gros, Gros, Grover, Guibaud, Gunnarsson, Göbel, Hashimoto, Helbling, Hignite, Ho, Hoigne, Huber, Huber, Huntscha, Hörsing, Ifelebuegu, Jelic, John N. Lester, Jones, Jones, Jones, Jones, Joss, Kasprzyk-Hordern, Khunjar, Kim, Kimura, Kosjek, Kreuzinger, Langford, Lishman, López-Serna, López-Serna, Marchese, Mark D. Scrimshaw, Matamoros, Maurer, McAdam, Metcalfe, Nakada, Nakada, Nieto, Ort, Ort, Petrie, Radjenovic, Radjenović, Reungoat, Robertson, Rosal, Samaras, Schaar, Sebők, Shen, Silva, Snyder, Snyder, Sumpter, Ternes, Ternes, Urase, Vader, Wagner, Wu, Wunder, Yang, Zearley, Zhao, Zorita, Zuloaga   +98 more
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Software Tools and Approaches for Compound Identification of LC-MS/MS Data in Metabolomics. [PDF]

, 2018
The annotation of small molecules remains a major challenge in untargeted mass spectrometry-based metabolomics. We here critically discuss structured elucidation approaches and software that are designed to help during the annotation of unknown compounds.
Blaženović, Ivana, Fiehn, Oliver, Ji, Jian, Kind, Tobias   +3 more
core   +3 more sources

Quantification of 2-Hydroxyglutarate Enantiomers by Liquid Chromatography-mass Spectrometry

Bio-Protocol, 2016
Two enantiomers of 2-hydroxyglutarate (2HG), L (L2HG) and D (D2HG), are metabolites of unknown function in mammalian cells that were initially associated with separate and rare inborn errors of metabolism resulting in increased urinary excretion of 2HG ...
William Oldham, Joseph Loscalzo
doaj   +1 more source

Electrospray ionization mass spectrometry ion suppression/enhancement caused by column bleed for three mixed‐mode reversed‐phase/anion‐exchange high‐performance liquid chromatography columns [PDF]

, 2021
Thomas H. Walter, Melvin Blaze M. T., Cheryl Boissel   +2 more
openalex   +1 more source

Liquid and vapour phase of lavandin (Lavandula × intermedia) essential oil: chemical composition and antimicrobial activity [PDF]

, 2019
Essential oils from Lavandula genus and the obtained hybrids are widely used for different purposes such as perfume production in the cosmetic field and for its biological properties.
Garzoli, S., Giacomello, P., Masci, V. L., Ovidi, E., Tiezzi, A., Turchetti, G.   +5 more
core   +1 more source

Power and limitations of electrophoretic separations in proteomics strategies [PDF]

, 2009
Proteomics can be defined as the large-scale analysis of proteins. Due to the complexity of biological systems, it is required to concatenate various separation techniques prior to mass spectrometry.
Aebersold, An, Andersen, Anderson, Anderson, Anderson, Anderson, Anderson, Appel, Artoni, Baczek, Baczek, Bell, Berggren, Bjellqvist, Bjellqvist, Bonner, Braun, Bravo, Bravo, Bravo, Bravo, Brown, Bunai, Bunger, Burre, Bury, Caglio, Caglio, Camacho-Carvajal, Cantin, Cargile, Cargile, Cargile, Castellanos-Serra, Cejka, Chen, Chevalier, Chevallet, Chiari, Chiari, Chick, Claverol, Cleveland, Cohen, Colinge, Corbett, Coughenour, Courchesne, Cox, Daban, Daban, Davis, Domon, Dukan, Duncan, Egen, Eng, Eravci, Essader, Fernandez-Patron, Figeys, Fritz, Garrels, Garrels, Gelfi, Gelfi, Giometti, Gordon, Gordon, Gorg, Gorg, Gorg, Groleau, Gronow, Han, Hardison, Hartinger, Heller, Henrich, Henzel, Hisabori, Hoffert, Hoffmann, Horowitz, Horth, Hunzinger, James, Johnson, Johnston, Jorgensen, Jovin, Jovin, Kasicka, Keller, Kobayashi, Krijgsveld, Krokhin, Kuroda, Kuster, Kyte, Laemmli, Lambert, Langen, Lasonder, Lengqvist, Liang, Link, Liu, Locke, Loo, Lopez, Lu, Lu, Lu, Luche, Lui, Luo, Luque-Garcia, Lyubimova, Macfarlane, Macfarlane, MacGillivray, Mackintosh, Malmstrom, Malone, Matsudaira, Mazzeo, Mets, Moritz, Nakamura, Navarre, Neuhoff, Nielsen, Novakova, O'Farrell, O'Farrell, Ogorzalek Loo, Orrick, Ortiz, Oses-Prieto, Pappin, Patton, Peng, Perkins, Petritis, Phelps, Rabilloud, Rabilloud, Rabilloud, Rabilloud, Radola, Radola, Rais, Reid, Reynolds, Richert, Rigaut, Righetti, Righetti, Righetti, Righetti, Righetti, Ros, Rosenfeld, Sanchez, Santoni, Schagger, Schagger, Scherl, Schirle, Schluesener, Schmitt, Sevinsky, Sevinsky, Shang, Shapiro, Shen, Shimura, Shimura, Siemankowski, SimoAlfonso, Simpson, Steinberg, Steinberg, Switzer, Szponarski, Szponarski, Tabb, Tan, Tarroux, Tastet, Towbin, Tsugita, Tuszynski, Unlu, van Oostveen, Vonguyen, Voris, Wang, Wang, Washburn, Weber, Wen, West, White, Wilkins, Williams, Wiltfang, Winkler, Wise, Witze, Xiao, Xie, Xie, Yamaguchi, Yamaguchi, Yata, Yates, Young, Yu, Yuan, Zahedi, Zewert, Zischka, Zuo   +225 more
core   +3 more sources