Determination of Ultra-Trace Mercury in Water Samples Based on Cold Vapor Atomic Fluorescence Spectrometry Using a Gold Trap

被引：0

作者：

Vasile, Gabriela Geanina ^{[1
]}

Marin, Nicoleta Mirela ^{[1
]}

Cruceru, Liliana Valeria ^{[1
]}

Simion, Marius ^{[1
]}

Galaon, Toma ^{[1
]}

Lehr, Carol Blaziu ^{[1
]}

机构：

[1] INCD ECOIND, Natl Res & Dev Inst Ind Ecol, 71-73 Drumul Podu Dambovitei Str, Bucharest 060652, Romania

来源：

REVISTA DE CHIMIE | 2016年 / 67卷 / 08期

关键词：

mercury; surface water; waste water; drinking water; CVAFS; gold trap;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This paper presents a method for mercury determination in water samples, at trace level using Cold Vapor Atomic Fluorescence Spectrometry (CVAFS). Mono, divalent mercury and organo-mercury compounds are converted to divalent mercury by oxidation with KbrO(3)-KBr in hydrochloric acid, as a result of Br and BrCl reaction. Before the analyses, the excess of Br is removed by ascorbic acid. The divalent mercury is then reduced to the elemental form using 20 g/L tin chloride in acid medium, purged with argon in a hygroscopic membrane in order to retain humidity and then withhold on a gold trap. Gold trap is used to concentrate Hg vapor prior to detection. After heating the trap, mercury is detected using an ozone-free Hg lamp. The analytical performance parameters of the method have been investigated (detection limit, quatification limit, working range, precision, recovery). The method is suitable for determination of ultra-trace mercury content from drinking, surface and wastewater samples.

引用

页码：1427 / 1432

页数：6

共 11 条

[1]

[Anonymous], 178522009 SR EN ISO

[2]

Bumbac C, 2010, J ENVIRON PROT ECOL, V11, P822

[3]

Cristea NI, 2011, REV CHIM-BUCHAREST, V62, P951

[4]

Dinu C, 2013, J ENVIRON PROT ECOL, V14, P1515

[5]

DINU C., 2011, INT S ENV IND, V2, P147

[6]

HIBBERT D. B., 2007, QUALITY ASSURANCE AN, P80

[7]

Iordache M, 2014, REV CHIM-BUCHAREST, V65, P87

[8]

Mandoc LR, 2015, UNIV POLITEH BUCHAR, V77, P33

[9]

Mousavi A, 2015, REV CHIM-BUCHAREST, V66, P774

[10]

TANASE I. GH., 2007, VALIDAREA METODELOR, P164

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