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[期刊论文]

An organically modified sol-gel membrane for detection of mercury ions by using 5,10,15,20-tetraphenylporphyrin as a fluorescence indicator

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author:

Guo, Liangqia (Guo, Liangqia.) [1] | Zhang, Wei (Zhang, Wei.) [2] | Xie, Zenghong (Xie, Zenghong.) [3] | Unfold

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EI

Abstract:

A new optical sensor membrane for sensing of Hg2+ in aqueous solution has been developed by using (5,10,15,20-tetraphenylporphyrin, H2tpp) as a lipophilized indicator, which was dissolved in an organically modified sol-gel. The method for preparation of this organically modified sol-gel membrane and its characteristics were investigated in detail. The fluorescence quenching of the sol-gel membrane by Hg2+ showed a linear response over the Hg2+ concentration range of 5.0 × 10-6 to 1.0 × 10-4 mol/l with a detection limit of 3.6 × 10-6 mol/l, and the good stability, reversibility, long lifetime and short response time could be obtained. © 2005 Elsevier B.V. All rights reserved.

Keyword:

Fluorescence Mercury (metal) Optical sensors Porphyrins Positive ions Quenching Sol-gels

Community:

  • [ 1 ] [Guo, Liangqia]The MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Zhang, Wei]The MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 3 ] [Xie, Zenghong]The MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Lin, Xucong]The MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 5 ] [Chen, Guonan]The MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

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Source :

Sensors and Actuators, B: Chemical

ISSN: 0925-4005

Year: 2006

Issue: 1

Volume: 119

Page: 209-214

2 . 3 3 1

JCR@2006

6 . 3 9 3

JCR@2018

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count:

30 Days PV: 3

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