SIMPLE METHOD FOR ANALYSIS OF UNMETABOLIZED BTEX IN URINE SAMPLES

Ján Hrivňák, Eva Kráľovičová
unpublished
A rapid and simple method for quantitative analysis of benzene, toluene, ethylbenzene and (o-, m-, p-) xylenes (BTEX) in urine using headspace solid-phase microcolumn extraction (HS-SPMCE) and gas chromatography with flame ionization detection (GC-FID) is described. Only 2 ml of sample are needed for analysis. The sample treatment is carried out in a 20 ml all glass syringe. The method provides a good repeatability (relative standard deviations (s r) ranging 3.1-5.2%) and repeatability
more » ... eatability (correlation coefficient (r 2) ranging 0.9981-0.9993). The limits of detection (LOD) and quantification (LOQ) were 60-71 ng/l and 385-412 ng/l, respectively.
fatcat:v3qximm7srcwlbtklyuwfem4gu