| 固相微萃取-气质联用测定胶州湾海水中有机锡化合物 |
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| 引用本文： | 张丽笑,苏荣国,张传松,石晓勇.固相微萃取-气质联用测定胶州湾海水中有机锡化合物[J].中国科学:化学,2010(8):1149-1155. |
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| 作者姓名： | 张丽笑 苏荣国 张传松 石晓勇 |
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| 作者单位： | 中国海洋大学海洋化学理论与工程技术教育部重点实验室,青岛266100 |
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| 摘 要： | 采用顶空固相微萃取-气质联用(HS-SPME-GC-MS)技术测定了胶州湾海水中有机锡的含量.样品用4%的四乙基硼化钠(NaBEt4)进行衍生,同时用PDMS纤维进行萃取,萃取富集后,用气质联用仪进行测定.通过分析,该方法中MBT的线性范围为10～1000ng/L,DBT和TBT的线性范围为50～1000ng/L,相对标准偏差低于14.0%,回收率在70.0%～125.0%之间,检出限低于12.5ng/L;通过所建立的方法对胶州湾海水中有机锡的污染现状进行了调查,发现胶州湾海水中存在不同程度的有机锡污染.
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| 关 键 词： | 顶空固相微萃取 有机锡 GC-MS 胶州湾 |
Determination of organotin compounds in seawater of Jiaozhou Bay by GC-MS |
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| ZHANG LiXiao,SU RongGuo,ZHANG ChuanSong,SHI XiaoYong.Determination of organotin compounds in seawater of Jiaozhou Bay by GC-MS[J].Scientia Sinica Chimica,2010(8):1149-1155. |
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| Authors: | ZHANG LiXiao SU RongGuo ZHANG ChuanSong SHI XiaoYong |
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| Institution: | (Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education; Ocean University of China,Qingdao 266100,China) |
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| Abstract: | This paper develops an analytical method using headspace solid-phase microextraction （HS-SPME） couplded with gas chromatography-mass spectrometry （GC-MS） to determine organotin compounds in seawater of Jiaozhou Bay. The organotins were derivatized in situ with sodium tetraethylborate and adsorbed on a poly（dimethysiloxane） （PDMS）-coated fused silica fiber. According to the analysis,the linearity range of MBT is from 10 to 1000 ng/L,DBT and TBT is 50 to 1000 ng/L,with RSD. below 14%,the recoveries of three organotin compounds is 70.0%-125.0% and the detection limits is below 12.5 ng/L. Based on the established analytical method,the pollution status of organotin compounds of Jiaozhou Bay were studied. |
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| Keywords: | headspace solid-phase microextraction （HS-SPME） organotin GC-MS Jiaozhou Bay |
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