A method for the simultaneous determination of 12 persistent organic pollutants (POPs) for example hexachlorobenzene,α-666,heptachlor,etc in highly active dry yeast powder was developed using accelerated solvent extraction (ASE)-QuEChERS-gas chromatography-mass.The Sample was extracted by acetonitrile with accelerated solvent extraction apparatus,and then cleaned up by PSA.The qualification and quantification of target compound were performed by gas chromatography-mass in selected ion monitoring mode (GC-MS-SIM).The results show that the 12 POPs were linear in the range of 0.025～2.500 μg/mL with good correlation coefficients(R2≥ 0.992).The average recoveries of the 12 POPs in highly active dry yeast powder were 74.5％～ 111.7 ％ with relative standard deviations (RSDs,n=6) of 3.1％～11.3％,at the spiked level of 0.05,0.25,1.00 mg/kg.The limits of detection of the method (LODs)were 0.002～0.009 mg/kg.The method is convenient operation,rapid,saving on solvent,could meet determination of 12 POPs residual in highly active dry yeast powder.%建立了加速溶剂萃取(ASE)-QuECh ERS-气相色谱-质谱法测定高活性干酵母粉中六氯苯、α-666、七氯等12种有机持久污染物(POPs)的分析方法.样品经乙腈加速溶剂萃取,N-丙基乙二胺(PSA)净化,气相色谱-质谱法选择离子监测模式(GC-MS-SIM)检测 .结果表明,12种POPs在0.025～2.500 μg/mL范围内线性关系良好,相关系数R2≥0.992,在3个添加水平(0.05、0.25、1.00 mg/kg)的平均回收率在74.5％～111.7％之间,相对标准偏差(RSDs)为3.1％～11.3％(n=6),检出限(LODs)为0.002～0.009 mg/kg. 本方法操作简便、快速、节省溶剂,能够满足高活性干酵母粉中12种POPs残留检测需求.
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