[目的]建立索氏抽提、固相萃取净化、气相色谱-三重四极杆串联质谱法同时测定土壤及沉积物中16种多环芳烃(PAHs)的方法.[方法]对萃取、净化及仪器分析条件进行了优化.[结果]优化条件为:1+1的二氯甲烷+正己烷提取16 h,硅胶净化或不净化方法,PAHs浓度在0.25~5.00μg/mL时线性相关系数(R2)为0.9903~0.9999;PAHs方法检出限为0.002~0.020 mg/kg;加标回收率为61.2%~117.0%.[结论]试验结果为土壤中多环芳烃的测定提供了理论依据.%[Objective] The aim was to establish a method for the simultaneous extraction,cleanup,determination of 16 polycyclic aromatic hy-drocarbons ( PAHs) in soil by using Soxhlet extraction method and solid phase extration ( SPE) cleanup coupled with capollary gas chromatog-raphy-triple quadrupole mass spectrometry (GC-QqQ-MS/MS).[Method] The conditions of extraction,cleanup,and instrumental operation were optimized.[Result] The optimal conditions of Soxhlet extraction method were extracted by dichloromethane+n-hexane(1 +1) for 16 hours, and the Silicagel column was chosen as column of purification or nonpurification method was chosen.The correlation coefficient (R2) for PAHs were 0.9903-0.9999 in the range of 0.25 -5.00 μg/mL, and the limits of detection of PAHs were in the range of 0.002 -0.020 mg/kg;the recoveries of the samples ranged from 61.2%-117.0%.[Conclusion] The results provide reference for the determination of PAHs in soil.
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