| 液相微萃取-毛细管电泳联用对汗液基质中4种芳香胺的同时测定 |
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| 引用本文： | 代喜斌,李海燕.液相微萃取-毛细管电泳联用对汗液基质中4种芳香胺的同时测定[J].分析测试学报,2010,29(10). |
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| 作者姓名： | 代喜斌 李海燕 |
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| 作者单位： | 武汉纺织大学,纺织印染清洁生产教育部工程研究中心,湖北,武汉,430073 |
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| 基金项目： | 湖北省自然科学基金资助项目 |
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| 摘 要： | 采用纤维膜三相液相微萃取(HF-LLLME)技术,对汗液基质中的苯胺、邻甲苯胺、对氯苯胺、对硝基苯胺进行了分离富集。以正辛醇为有机相,在供体相pH为9.0,NaCl质量浓度为200g/L,接收相pH为1.0,萃取时间为60min的条件下,4种芳香胺的富集倍数为410～1250倍。将接收相直接进行毛细管电泳(CE)测定,样品相中4种芳香胺的质量浓度在10～100μg/L范围内与电泳峰面积呈良好线性,相关系数均大于0.992,4种芳香胺的检出限为1～10μg/L。运用该法对偶氮染料汗液环境下光致降解过程中产生的苯胺进行测定,回收率为91%～93%,结果满意。
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| 关 键 词： | 三相液相微萃取 毛细管电泳 芳香胺 偶氮染料 |
Determination of Aromatic Amines Generated from Azo-dye by Liquid Phase Microextration-Capillary Electrophoresis |
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| DAI Xi-bin,LI Hai-yan.Determination of Aromatic Amines Generated from Azo-dye by Liquid Phase Microextration-Capillary Electrophoresis[J].Journal of Instrumental Analysis,2010,29(10). |
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| Authors: | DAI Xi-bin LI Hai-yan |
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| Institution: | DAI Xi-bin,LI Hai-yan(Engineering Research Center for Cleaner Production of Textile Dyeing & Printing,Ministry of Education,Wuhan Textile University,Wuhan 430073,China) |
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| Abstract: | A capillary electrophoresis method for the simultaneous determination of aromatic amines,namely aniline,o-toluidine,4-chloroaniline,4-nitroaniline degradated from sweat matrix using a three phase(liquid-liquid-liquid)microextraction(LLLME)with a hollow fiber membrane(HF)for the separation and concentration of aromatic amines was developed.Under optimized LLLME conditions:n-octane as organic phase,donor phase pH=9.0,receiving phase pH=1.0,200 g/L NaCl,an enrichment factor ranging from 410 to 1 250 could be a... |
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| Keywords: | three-phase liquid microextraction capillary electrophoresis aromatic amine azo-dye |
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