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气相色谱-质谱联用同时测定蔬菜中16种邻苯二甲酸酯残留
Authors
孙若男
林竹光
陈美瑜
Publication date
15 December 2010
Publisher
Abstract
研究了蔬菜中16种邻苯二甲酸酯(PAEs)环境激素残留的气相色谱-电子轰击离子源质谱(GC-EI/MS)分析方法。优化了样品的前处理条件,以苯甲酸苄酯(BB)为内标物,采用GC-EI/MS的选择离子检测方式(SIM)进行定性和定量分析。当蔬菜样品的加标浓度水平分别为100和200μg/kg时,加标回收率为70.9%~123.0%,相对标准偏差为1.6%~15%。除邻苯二甲酸二甲氧基已酯(DMEP)外,其它15种PAEs的方法检测限(MDL)均为0.11~2.77μg/kg。在50.0~800.0μg/kg浓度范围内16种PAEs都呈现良好的线性关系,r为0.99623~0.99998。方法已用于5种蔬菜中16种痕量PAEs残留的分析
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Last time updated on 16/06/2016