气相色谱-串联质谱法快速测定植物油中17种邻苯二甲酸酯含量  

Rapid Determination by Gas Chromatography-Tandem Mass Spectrometry Content of 17 Kinds of Phthalates in Vegetable Oil

作　　者：谢聪霞 XIE Congxia(Xiamen Huace Testing Technology Co.,Ltd.,Xiamen 361000,China)

机构地区：[1]厦门市华测检测技术有限公司,福建厦门361000

出　　处：《食品安全导刊》2024年第25期103-106,共4页China Food Safety Magazine

摘　　要：本文采用气相色谱-三重四极杆串联质谱结合多反应监测模式,建立了一种快速测定植物油中17种邻苯二甲酸酯的检测方法。试验采用含饱和正己烷的乙腈超声提取、低温冷冻离心方式对前处理条件进行优化。结果表明,17种邻苯二甲酸酯在20~1000μg·L^(-1)线性关系良好,相关系数均大于0.995,方法检出限为1.37~36.8μg·kg^(-1)。加标回收率为85.9%~108.4%,精密度为0.79%~8.30%。该方法前处理简单快速,回收率和精密度较高,可用于植物油中17种邻苯二甲酸酯含量的快速测定。This article uses gas chromatography triple quadrupole tandem mass spectrometry with multi reaction monitoring mode to establish a rapid detection method for 17 phthalates in vegetable oil.The experiment used acetonitrile with saturated n-hexane for ultrasonic extraction and low-temperature freeze centrifugation to optimize the pretreatment conditions.The results showed that there was a good linear relationship between 17 phthalates in the range of 20~1000μg·L^(-1),with correlation coefficients greater than 0.995.The detection limit of the method was 1.37~36.8μg·kg^(-1).The recovery rate of spiked samples is 85.9%to 108.4%,and the precision is 0.79%to 8.30%.This method has simple and fast pretreatment,high recovery rate and precision,and can be used for rapid determination of 17 phthalates in vegetable oils.

关 键 词：气相色谱-串联质谱法 邻苯二甲酸酯 快速检测 

分 类 号：O657.63[理学—分析化学] TS225.1[理学—化学]