建立了连续流动-固相微萃取富集、气相色谱测定水中多环芳烃的方法,探讨了流量和溶液体积对萃取效果的影响。方法在0μg/L-40μg/L范围内线性良好,8种多环芳烃的检出限为0.05μg/L-0.5μg/L,样品测定的相对标准偏差〈7%,加标回收率为87.0%~112%。
The method was established for polycyclic aromatic hydrocarbons determination by continuous aqueous sample flow-solid phase micro extraction/gas chromatography. The flow and solution volume on the effects of extraction were discussed. The good linear in the range from 0 μg/L to 40 μg/L, the detection limits of 8 kinds of polycyclic aromatic hydrocarbons from 0.05 μg/L to 0.5 μg/L, the relative standard deviation of samples 〈7% , the recoveries from 87.0% to 112%.