Design and characteristics of a mercury(II) optode based on immobilization of dithizone on a triacetylcellulose membrane

被引：74

作者：

Safavi, A ^{[1
]}

Bagheri, M ^{[1
]}

机构：

[1] Shiraz Univ, Dept Chem, Coll Sci, Shiraz 71454, Iran

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2004年 / 99卷 / 2-3期

关键词：

optode; Hg2+ ions; iodide; dithizone;

D O I：

10.1016/j.snb.2004.01.022

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The development of an optical sensor based on immobilization of dithizone on a triacetylcellulose membrane is described. This optode has a linear range of 0.15-1.94 mug ml(-1) (0.75-9.7 muM) of Hg2+ ions with a limit of detection of 20 ng ml(-1) (0.1 muM). The response time of optode was within 6-9 min depending on the concentration of Hg2+ ions. The selectivity of optode to Hg2+ ions in universal buffer is good, with Cu2+ ions as the main interference. The sensor can readily be regenerated with potassium iodide solution. The optode is fully reversible. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：608 / 612

页数：5

共 20 条

[1] FIBER OPTIC REFLECTANCE SENSOR FOR THE DETERMINATION OF ALUMINUM(III) IN AQUEOUS ENVIRONMENT [J].