文献类型：期刊文献

英文题名：Trace mercury (II) detection and separation in serum and water samples using a reusable bifunctional fluorescent sensor

作者：He, Chunsheng[1];Zhu, Weiping[1];Xu, Yufang[1];Chen, Tao[1];Qian, Xuhong[1]

机构：[1]E China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China

年份：2009

卷号：651

期号：2

起止页码：227

外文期刊名：ANALYTICA CHIMICA ACTA

收录：;EI(收录号：20093912343311);WOS:【SCI-EXPANDED(收录号:WOS:000270745600014)】；

基金：The authors are grateful for the financial support from National Natural Science Foundation of China (Grants 20536010), Science and Technology Foundation of Shanghai (Grants 06JC14021, 073919109), Program of Shanghai Subject Chief Scientist (Grant 07XD14009), and Shanghai Leading Academic Discipline Project (13507).

语种：英文

外文关键词：Trace mercury; Fluorescent sensor; Detection; Separation; Serum

摘要：In this work, a reusable bifunctional fluorescent sensor for simultaneous detection and separation of trace Hg2+ in water and serum, which contains a naphthalimide derivative of 2,6-bis(aminomethyl)pyridine covalently grafted to the surface of silica particles, was developed Meanwhile the fluorescence characteristics and the adsorbent properties of the sensor were investigated in detail. This sensor showed a very good linearity (correlation coefficient of R-2 = 0.9991) in the range 0.1-1 mu M of Hg2+ with detection limits lower than 6.8 x 10(-9) M. It can also be used as an adsorbent for the removal of mercuric ions from the contaminated aqueous Solution. The regeneration of this sensor is very simple, only by modulating the pH value of the aqueous Solution. It can be reused at least four cycles. In addition, the present approach has the advantages of rapidity. simplicity, and low cost. We believe that this approach may serve as a foundation for the preparation of practical fluorescent sensor for the rapid detection of Hg2+ in aqueous biological and environmental samples. (C) 2009 Elsevier B.V. All rights reserved.