Sensitive determination of strongly polar aromatic amines in water samples by stir bar sorptive extraction based on poly(vinylimidazole-divinylbenzene) monolithic material and liquid chromatographic analysis
Sensitive determination of strongly polar aromatic amines in water samples by stir bar sorptive extraction based on poly(vinylimidazole-divinylbenzene) monolithic material and liquid chromatographic analysis
复制标题
基于聚(乙烯基咪唑-二乙烯基苯)整体材料的搅拌棒吸附萃取及液相色谱分析灵敏测定水样中的强极性芳香胺
DOI：
10.1016/j.chroma.2009.03.043
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发表时间：
2009-05-15
影响因子：
4.1
通讯作者：
Lin, Qingmei
中科院分区：
文献类型：
--
作者：
Huang, Xiaojia;Qiu, Ningning;Lin, Qingmei
建立了搅拌棒吸附萃取-高效液相色谱法测定极性芳香胺的方法。制备了亲水性聚乙烯基咪唑-二乙烯基苯（VIDB）整体材料，并将其作为SBSE涂层。以苯胺和2，4-二硝基苯胺为被测物，考察了VIDB聚合条件对萃取效率的影响。为了达到最佳的萃取性能，几个参数，包括萃取和解吸时间，解吸溶剂，离子强度和样品基质的pH值进行了研究。结果表明，在优化的实验条件下，该方法具有灵敏度高、回收率高、线性好、操作简便、成本低、可行性高等优点。并将该方法对目标化合物的萃取性能与以聚二甲基硅氧烷为涂层的商用SBSE和其他基于整体材料的SBSE进行了比较。将该方法成功地应用于湖泊和海水沃茨中多环芳烃的测定，并在真实的样品中获得了良好的加标回收率。(C)2009爱思唯尔有限公司版权所有。
A simple and sensitive method for the determination of polar aromatic amines (PAAs) was developed using stir bar sorptive extraction (SBSE) coupling to high-performance liquid chromatography. A hydrophilic poly(vinylimidazole-divinylbenzene) (VIDB) monolithic material was prepared and acted as SBSE coating. The influences of polymerization conditions for VIDB on the extraction efficiency were investigated using aniline and 2,4-dinitroaniline as detected solutes. To achieve optimum extraction performance for PAAs, several parameters including extraction and desorption time, desorption solvent, ionic strength and pH value of sample matrix were investigated. The results showed that under the optimized experimental conditions, the method showed good sensitivity and excellent recoveries, as well as advantages such as linearity, simplicity, low cost and high feasibility. The extraction performance of present method to the target compounds also compared with commercial SBSE which using polydimethylsiloxane as coating and other SBSE which based on monolithic materials. Finally, the proposed method was successfully applied to the determination of PAAs in lake and sea waters, and excellent recoveries of spiked target compounds in real samples were obtained. (C) 2009 Elsevier B.V. All rights reserved.