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C18固相萃取与GC-MS对生物基质样品中有机锡的测定

Determination of Organotins in Bio-matrix Sample by C18 SPE Coupled with GC-MS

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【作者】 卢大胜汪国权温忆敏

【Author】 LU Da-sheng,WANG Guo-quan,WEN Yi-min (Shanghai Municipal Center for Disease Control and Prevention,Shanghai 200336,China)

【机构】 上海市疾病预防控制中心

【摘要】 <正>有机锡类化合物(OT)属于内分泌干扰物,可通过食物链影响人类健康。国外报道,在TBT、TPT污染严重的海域,尤其是港湾等船运发达且流水不畅的水域,常会发现软体动物假雌雄同体的雄化现象、牡蛎壳的异常增厚现象等。各国对环境和生物样品中的有机锡化合物含量进行了相关研究,并提出了一些相关分析方法。衍生化方法包括格林试剂烷基化、NaBH4氢化和四乙基硼化钠(STEB)烷基

【Abstract】 A simple and rapid method for determination of monobutyl,dibutyl,tributyl,monophenyl,diphenyl and triphenyl in bio-matrix has been developed by C18 SPE coupled with GC - MS using sodium tetraeth-ylboron as derivatization reagent.Hydrolyzation and extraction of sample were performed with 3 mol/L acetic acid containing 0.005%tropolone.The extracts were analyzed by GC - MS under SIM mode and using 1 mol/ L TPrT as an internal standard.LOD of the method was down to 10 ng/g(dry sample),the recoveries were 56%-113%for four samples spiked at 50 ng/g with RSD of 1.0%-11.9%,and 79%-113%for four samples spiked at 200 ng/g with RSD of 0.8%- 6.5%,respectively.

【基金】 上海市科委项目(06DZ05127)
  • 【会议录名称】 2008年全国有机质谱学术会议论文集
  • 【会议名称】2008年全国有机质谱学术会议
  • 【会议时间】2008-11-14
  • 【会议地点】中国浙江宁波
  • 【分类号】Q503
  • 【主办单位】中国分析测试协会
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