Environmental analytical methods

On-line enrichment and determination of polycyclic aromatic hydrocarbonsin atmospheric particulates using high performance liquidchromatography with fluorescence as detector

HASHI Yuki , WANG Tian-ran , LI Yue-qi , LIN Jin-ming


Received December 07, 2006,Revised June 01, 2007, Accepted , Available online

Volume 19,2007,Pages 1261-1265

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Seven polycyclic aromatic hydrocarbons (PAHs) in atmospheric particulates were determinated by high performance liquid chromatography (HPLC) with fluorescence detector using direction injection and an on-line enrichment trap column. The method simplified the sample pretreatment, saved time and increased the e ciency. With the on-line trap column, PAHs were separated availably even underground injecting 1.0 ml sample with relatively high column e ciency. The recoveries of the seven PAHs were from 85% to 120% for spiked atmospheric particulate sample. The limit of detection was 15.3–39.6 ng/L (S/N=3.3). There were good linear correlations between the peak areas and concentrations of the seven kinds of PAHs in the range of 1–50 ng/ml with the correlation coe cients over 0.9970. Furthermore, it also indicated that the method is available to determine PAHs in atmospheric particulates well.

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