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Automated headspace gas chromatographic analysis of faecal short-chain fatty acids

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A method was developed and validated for analysis of faecal short-chain fatty acids using automated headspace gas chromatography. Quantification was by standard addition. Ghosting was minimized by lining the transfer tube from the headspace sampler to the gas chromatograph with deactivated fused silica and addition of formic acid to sample vials. Saturation of samples with lithium sulphate increased recoveries. The method was used to analyse small amounts of faecal matter collected from premature babies. Advantages of the technique are rapid, accurate, analysis of faecal specimens in batches, with minimum sample preparation.
Original languageEnglish
Pages (from-to)7-13
Number of pages7
JournalJournal of Chromatography B: Biomedical Sciences and Applications
Issue number1
Publication statusPublished - 17 Nov 1993

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