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. (C) 1999 Elsevier Science B.V. All rights reserved.
机构:Universidad de Santiago de Compostela,Departamento de Quimica Analitica, Nutricion y Bromatologia, Facultad de Quimica, Instituto de Investigacion y Analisis Alimentario, Campus Sur
J. Pablo Lamas
Lucia Sanchez-Prado
论文数: 0引用数: 0
h-index: 0
机构:Universidad de Santiago de Compostela,Departamento de Quimica Analitica, Nutricion y Bromatologia, Facultad de Quimica, Instituto de Investigacion y Analisis Alimentario, Campus Sur
Lucia Sanchez-Prado
Carmen Garcia-Jares
论文数: 0引用数: 0
h-index: 0
机构:Universidad de Santiago de Compostela,Departamento de Quimica Analitica, Nutricion y Bromatologia, Facultad de Quimica, Instituto de Investigacion y Analisis Alimentario, Campus Sur
Carmen Garcia-Jares
Maria Llompart
论文数: 0引用数: 0
h-index: 0
机构:Universidad de Santiago de Compostela,Departamento de Quimica Analitica, Nutricion y Bromatologia, Facultad de Quimica, Instituto de Investigacion y Analisis Alimentario, Campus Sur
Maria Llompart
Analytical and Bioanalytical Chemistry,
2009,
394
: 1399
-
1411
机构:
Food Directorate, Bureau Chem Safety, Food Res Div, Ottawa, ON K1A 0L2, CanadaFood Directorate, Bureau Chem Safety, Food Res Div, Ottawa, ON K1A 0L2, Canada
机构:
Univ Santiago de Compostela, Inst Invest & Anal Alimentario, Dept Quim Analit Nutr & Bromatol, Fac Quim, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Inst Invest & Anal Alimentario, Dept Quim Analit Nutr & Bromatol, Fac Quim, Santiago De Compostela 15782, Spain
Lamas, J. Pablo
Sanchez-Prado, Lucia
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, Inst Invest & Anal Alimentario, Dept Quim Analit Nutr & Bromatol, Fac Quim, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Inst Invest & Anal Alimentario, Dept Quim Analit Nutr & Bromatol, Fac Quim, Santiago De Compostela 15782, Spain
Sanchez-Prado, Lucia
论文数: 引用数:
h-index:
机构:
Garcia-Jares, Carmen
Llompart, Maria
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago de Compostela, Inst Invest & Anal Alimentario, Dept Quim Analit Nutr & Bromatol, Fac Quim, Santiago De Compostela 15782, SpainUniv Santiago de Compostela, Inst Invest & Anal Alimentario, Dept Quim Analit Nutr & Bromatol, Fac Quim, Santiago De Compostela 15782, Spain
机构:
Univ Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, SpainUniv Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, Spain
Bermejo, AM
López, P
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, SpainUniv Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, Spain
López, P
Alvarez, I
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, SpainUniv Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, Spain
Alvarez, I
Tabernero, MJ
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, SpainUniv Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, Spain
Tabernero, MJ
Fernández, P
论文数: 0引用数: 0
h-index: 0
机构:
Univ Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, SpainUniv Santiago, Fac Med, Forens Toxicol Serv, Inst Legal Med, Santiago De Compostela 15782, Spain