| Literature DB >> 10080656 |
G A Mills1, V Walker, H Mughal.
Abstract
Trimethylaminuria (fish odour syndrome) is diagnosed from an increase in urinary excretion of trimethylamine with decreased trimethylamine oxide. We report a new quantitative stable isotope dilution gas chromatography-mass spectrometry procedure for the analysis of these metabolites using solid-phase microextraction (SPME). Both polydimethylsiloxane and mixed Carboxen-polydimethylsiloxane SPME fibres were found to be suitable for the headspace extraction of TMA. This new sampling technique could have wide application for the analysis of volatile and semi-volatile compounds by metabolic screening laboratories.Entities:
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Year: 1999 PMID: 10080656 DOI: 10.1016/s0378-4347(98)00542-8
Source DB: PubMed Journal: J Chromatogr B Biomed Sci Appl ISSN: 1387-2273