Journal of Shanghai University(Natural Science Edition) ›› 2013, Vol. 19 ›› Issue (4): 374-379.

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Detection of Eight Hydroxylated Metabolites of Polycyclic Aromatic Hydrocarbons Smokers’ Urine Using Solid Phase Extraction Coupled to High Performance Liquid Chromatography

LI Yin-ping, LI Xue   

  1. (School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China)
  • Online:2013-08-27 Published:2013-08-27

Abstract: To assess the exposure to polycyclic aromatic hydrocarbons (PAHs) by smoking, a method to detect 8 types of urinary hydroxylated metabolites of PAHs (OH-PAHs) (containing 2 to 5 rings) was developed by using solid phase extraction (SPE)coupled to high performance liquid chromatography fluorescence detection (HPLC-FD). With optimized SPE and HPLC-FD conditions, 8 standard curve equations were established for individual OH-PAHs with linear ranges of 0.2~20 μg/L or 0.5~20 μg/L (all determination coefficients R2 > 0.998). The method quantification limits (MDLs) were 0.03~0.07 μg/L, and recoveries R were (70%±4%)~(109%±30%), while inter-day variations ranged from 5% to 28%. OH-PAHs in urine samples from local smokers were successfully detected, showing that the method is promising in assessing exposure to PAHs for local smokers.

Key words: biomarker, health risk assessment, hydroxylated metabolite of polycyclic aromatic carbons, smoker, urine

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