浅谈串联四极杆质谱（GC—QqQ-MS／MS）在土壤样品有机污染物分析中的应用

建立了ASE-GPC—GC-QqQ—MS／MS测定土壤中17种有机氯农药和19种多氯联苯以及MAE-SPE—GC-QqQ—MS／MS测定土壤中16种多环芳烃和18种邻苯二甲酸酯的方法。多环芳烃和邻苯二甲酸酯定量限在0．02～2．81μg／kg之间，有机氯农药和多氯联苯定量限在0．01～0．51μg/kg之间。样品加标浓度在5μg/kg时多环芳烃和邻苯二甲酸酯的平均回收率在66．6％～122．1％之间，相对标准偏差均小于20％；有机氯农药和多氯联苯平均回收率在79．6％～93．2％之间，相对标准偏差均小于15％。

Application and Research of Gas Chromatography-Triple Quadrupole Mass Spectrometry in Quantitive Analysis of Organic Contaminant in Soil

In this paper some methods to analyze farm chemicals in soil were developed and validated such as ASE-GPC-GC- QqQ-MS/MS method for 17 organochlorine pesticides （OCPs） and 19 polychlorinated biphenyls （PCBs）, MAE-SPE-GC-QqQ- MS/MS method for 16 polycyclic aromatic hydrocarbons （PAHs） and 18 phthalic acid esters （PAEs） . Limits of quantification （LOQs） for PAHs and PAEs were ranged from 0. 02 to 2. 81μg/kg and OCPs and PCBs were from 0. 01 to 0. 51 μg/kg. Average recoveries of the PAHs and PAEs spiked at 5 μg/kg into soils were typically in the range of 66. 6% - 122. 1%, the relative standard deviations were generally less than 20%. Average recoveries of the OCPs and PCBs were typically in the range of 79. 6% - 93.2%, the relative standard deviations were generally less than 15%.