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Gas-liquid chromatographic analysis of volatile short chain fatty acids in fecal samples as pentafluorobenzyl esters

✍ Scribed by Lawrence T. McGrath; Colin D. Weir; Suzanne Maynard; Brian J. Rowlands

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 404 KB
Volume: 207
Category: Article
ISSN: 0003-2697
DOI: 10.1016/0003-2697(92)90004-q

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✦ Synopsis

A protocol was developed for the analysis of volatile short chain fatty acids in microsamples of feces, short chain fatty acid (SCFA) extraction was from fecal samples using ethanol incorporating n-hexanoic acid as an internal standard. The SCFAs were converted to pentafluorobenzyl esters with alpha-2,3,4,5,6-pentafluorotoluene and analyzed on a gas-liquid chromatograph equipped with an electron capture detector. One hundred milligrams of sample was routinely used but analysis could be carried out on 20 mg of sample.

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