A flow-through optical fibre reflectance sensor for the detection of lead ion based on immobilised gallocynine

被引：33

作者：

Yusof, NA ^{[1
]}

Ahmad, M

机构：

[1] Univ Pertanian Malaysia, Fac Sci & Environm Studies, Dept Chem, Serdang 43400, Selangor DE, Malaysia

[2] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Chem Sci & Food Technol, Bangi 43600, Selangor DE, Malaysia

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 94卷 / 02期

关键词：

flow injection analysis (FIA); lead detection; optical fibre sensor;

D O I：

10.1016/S0925-4005(03)00344-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flow-through spectrophotometric sensor for the determination of lead at trace level using immobilised gallocynine as the reagent phase is proposed. Gallocynine is physically adsorbed onto XAD-7. This method provided a wide linear range of 1 x 10(-1) to 1 x 10(3) ppm and detection limit of 0.06 ppm. This method also showed a reproducible result with relative standard deviation (R.S.D.) of 1.64% and response time of similar to5 min. The response towards lead was also reversible using acidified KNO3 as the regenerating solution. Interference studies showed that Hg(II) and Ag(I) significantly interfered during the determination. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：201 / 209

页数：9

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