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投稿时间：2015-01-20
投稿时间：2015-01-20
中文摘要: 建立了测定食用槟榔中15种多环芳烃（PAHs）的气相色谱－质谱（GC－MS）的方法。样品经正己烷超声萃取后，采用凝胶渗透色谱（GPC）和分散固相萃取（DSPE）进行净化，用气相色谱－质谱（GC－MS）测定。在优化条件下，采用外标法测定，被测目标在线性范围内其相关系数（r2）不低于0.996，检出限为0.2 ng/mL～1.0 ng/mL；精密度（RSD，n= 7）不大于4.38 %，回收率试验结果满意。该方法用于食用槟榔中多环芳烃的测定是可行的。
Abstract:A gas chromatography-mass spectrometry（GC-MS）method was developed for the determination of fifteen polycyclic aromatic hydrocarbons（PAHs）in edible betelnet. The analytes were extracted ultrasonically from edible betelnet samples by hexane，and purified by gel permeation chromatography（GPC）and dispersion solid phase extraction（DSPE），then analyzed by GC-MS with external standard method. Under the optimized conditions，the correlation coefficients（r2）of PAHs in linear range were not less than 0.996，the limits of detection were 0.2 ng/mL-1.0 ng/mL and the relative standard deviations（RSD）were lower than 4.38 %.the result of recoveries were satisfied. The results showed that the method is feasible for analysis on PAHs in edible betelnet.
keywords: edible betelnet polycyclic aromatic hydrocarbons gel permeation chromatography dispersion solid phase extraction GC-MS
文章编号：201604031 中图分类号： 文献标志码：
基金项目:国家质检总局科技计划项目（2013QK243）
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