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J Chromatogr A ; 1027(1-2): 37-40, 2004 Feb 20.
Artículo en Inglés | MEDLINE | ID: mdl-14971481

RESUMEN

A simple method for benzene, toluene, and xylenes (BTX) quantitative analyses in human urine was developed, using headspace solid-phase microextraction (HS-SPME) and gas chromatography coupled to mass spectrometry detection in the single ion monitoring mode. The developed method is solventless, non-invasive, requires small volume of sample (1 ml), shows high selectivity, sensitivity, repeatability, and linearity (correlation coefficients >0.998), providing a useful alternative to assess human exposure to BTX compounds due to occupational reasons or eventual exposure to organic solvents. Detection limit varies from 0.28 to 0.5 ppb (v/v).


Asunto(s)
Benceno/análisis , Cromatografía de Gases/métodos , Tolueno/orina , Xilenos/orina , Humanos , Exposición Profesional , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
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