Capillary Gas Chromatographic Analysis of Volatile and Non-Volatile Organic Acids from Biological Samples as the t-Butyldimethylsilyl Derivatives

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Abstract
A quantitative procedure for the analysis of volatile organic acids and lactic acid in silage is described. The samples were extracted with diethyl ether, derivatized by t-butyldimethylsilylation, and then separated by capillary gas chromatography. The same procedure was useful for the identification by gas chromatography/mass spectrometry of organic acids in samples such as the metabolic fermentation products of anaerobic bacteria.