Results 1 to 10 of about 145,241 (196)

Early gas chromatography/mass spectrometry [PDF]

Journal of the American Society for Mass Spectrometry, 1993
Spectroscopy Laboratory, The Dow Chemical Company, Midland, Michigan, USA In December 1955 or thereabouts, the authors coupled a homemade gas chromatograph to a research time-of-flight mass spectrometer constructed by W. C. Wiley, I. H. McLaren, and D. B. Harrington.
Roland S. Gohlke, Fred W. McLafferty
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Microbial Metabolomics with Gas Chromatography/Mass Spectrometry [PDF]

Analytical Chemistry, 2006
An analytical method was set up suitable for the analysis of microbial metabolomes, consisting of an oximation and silylation derivatization reaction and subsequent analysis by gas chromatography coupled to mass spectrometry. Microbial matrixes contain many compounds that potentially interfere with either the derivatization procedure or analysis, such ...
Maud M. Koek, Bas Muilwijk, Thomas Hankemeier, Mariët J. van der Werf   +3 more
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Gas Chromatography-Mass Spectrometry [PDF]

, 1971
In choosing a method by which to identify drug metabolites, the quantity of material which is available is a prime consideration. In this regard, pharmacologists find themselves midway between natural products chemists and biochemists. Usually the former has reasonably large quantities of material available in a relatively high state of purity.
A. M. Guarino, H. M. Fales
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Gas Chromatography-Mass Spectrometry

, 2014
This chapter provides a basic introduction to the technical and practical basics of coupling gas chromatography with mass spectrometry (GC-MS), and it will touch on major applications where GC-MS techniques are essential parts of analytical protocols.
Elena E. Stashenko, Jairo René Martínez   +1 more
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Quantification of Loperamide by Gas Chromatography Mass Spectrometry [PDF]

Journal of Analytical Toxicology, 2017
Due to reported pharmacological activity similar to classical opioids at supratherapeutic concentrations, abuse of the anti-diarrheal medication loperamide (Imodium AD™) has become a target in the opioid epidemic. While this phenomenon is not new, published quantitative analytical methods use liquid chromatography tandem mass spectrometry.
C. Andrew Robinson, Daniel S. Atherton, Rachel Beck, Daniel W. Dye, Susan Kloda   +4 more
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Capillary gas chromatography/mass spectrometry of oxazaphosphorines [PDF]

Journal of High Resolution Chromatography, 1990
no ...
van At Allan Oosterom, Ggo Pattyn, Hilde A. J. Lambrechts, Eoo Gheuens, PA Piet Leclercq, de Ea Bruijn, van Ka Cauwenberghe   +6 more
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Determination of ifosfamide by gas chromatography—mass spectrometry

Analytica Chimica Acta, 1991
Ifosfamide, an oxazaphosphorine, is thermally stable during elution in gas chromatography (GC) at temperatures above 200 °C, in contrast to its structural isomer cyclophosphamide. Both 2.65-µm and 0.32-µm OV-1 columns were efficient for GC of ifosfamide without derivatization.
Hilde A. J. Lambrechts, Allan T. van Oosterom, PA Piet Leclercq, Greet G. O. Pattyn, Karel Van Cauwenberghe, Ernst A. de Bruijn, Eric O.O. Gheuens   +6 more
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Gas chromatography - Mass spectrometry

, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445 ...
Berdié Rabanaque, Lourdes, Fernández Vidal, Irene, Teixidor Casamitjana, Pilar   +2 more
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Untargeted Soil Metabolomics Using Liquid Chromatography–Mass Spectrometry and Gas Chromatography–Mass Spectrometry [PDF]

, 2018
The molecular composition of soil organic matter (SOM) sets the foundation for terrestrial microbial community structures and carbon cycling dynamics. However, the specific chemical constituents of SOM are underexplored. In this chapter we present a protocol for the extraction of small molecule metabolites from soil followed by compound detection and ...
Tami L. Swenson, Trent R. Northen, Trent R. Northen   +2 more
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Identifying and analyzing the microplastics in human aqueous humor by pyrolysis-gas chromatography/mass spectrometry. [PDF]

iScience
Zhang K, Yu L, Qu L, Hui N, Chen L, Wang J, Yan H.   +6 more
europepmc   +1 more source