Krämer Alkalde T, do Carmo Ruaro Peralba M, Alcaraz Zini C, Bastos Caramão E. Quantitative analysis of benzene, toluene, and xylenes in urine by means of headspace solid-phase microextraction.
J Chromatogr A 2004;
1027:37-40. [PMID:
14971481 DOI:
10.1016/j.chroma.2003.09.007]
[Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
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).
Collapse