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气相色谱-三重四级杆串联质谱法测定土壤中多环芳烃的方法研究
引用本文:王爱霞,陈国通,邵家丽,罗建民.气相色谱-三重四级杆串联质谱法测定土壤中多环芳烃的方法研究[J].安徽农业科学,2017,45(33).
作者姓名:王爱霞  陈国通  邵家丽  罗建民
作者单位:新疆分析测试研究院,新疆乌鲁木齐,830011;新疆分析测试研究院,新疆乌鲁木齐,830011;新疆分析测试研究院,新疆乌鲁木齐,830011;新疆分析测试研究院,新疆乌鲁木齐,830011
摘    要: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0.990 3~0.999 9;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。

关 键 词:多环芳烃  索氏抽提  净化  气相色谱-串联质谱

Determination of Polycyclic Aromatic Hydrocarbons in Soil by Gas Chromatography-triple Quadrupole Mass Spectrometry
WANG Ai-xia,CHEN Guo-tong,SHAO Jia-li,LUO Jian-min.Determination of Polycyclic Aromatic Hydrocarbons in Soil by Gas Chromatography-triple Quadrupole Mass Spectrometry[J].Journal of Anhui Agricultural Sciences,2017,45(33).
Authors:WANG Ai-xia  CHEN Guo-tong  SHAO Jia-li  LUO Jian-min
Abstract: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.
Keywords:Polycyclic aromatic hydrocarbons  Soxhlet extraction  Purification  Gas chromatography-triple quadrupole mass spectrometry
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