Mercury determination by cold vapor atomic absorption spectrometry utilizing UV photoreduction

被引：77

作者：

Bendl, RF ^{[1
]}

Madden, JT ^{[1
]}

Regan, AL ^{[1
]}

Fitzgerald, N ^{[1
]}

机构：

[1] Marist Coll, Dept Chem Biochem & Phys, Poughkeepsie, NY 12601 USA

来源：

TALANTA | 2006年 / 68卷 / 04期

关键词：

UV photoreduction; mercury; vapor generation; atomic absorption spectrometry;

D O I：

10.1016/j.talanta.2005.07.061

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A method for the determination of mercury via UV photoreduction has been investigated. Mercury vapor was generated by the reduction of mercury species in an acetic acid solution using UV radiation. Detection of the volatile mercury was accomplished by atomic absorption spectrometry. An optimized system was found to provide a detection limit (defined as the concentration giving a signal equal to three times the standard deviation of the blank) of 2.1 mu g L-1 with a precision of 2.9% relative standard deviation (n = 8) for a 500 mu g L-1 mercury standard. The effect of various metal ions on the mercury signal was investigated and the method validated with a NRCC certified dogfish liver material (DOLT-3) using the method of standard additions. A reaction pathway is hypothesized for UV photoreduction. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1366 / 1370

页数：5

共 15 条

[1]

BAIRD C, 2005, ENV CHEM, P519

[2]

Dedina J., 1995, HYDRIDE GENERATION A, V1st

[3] Vapor generation by UV irradiation for sample introduction with atomic spectrometry [J].

Guo, XM ;

Sturgeon, RE ;

Mester, Z ;

Gardner, GJ .

ANALYTICAL CHEMISTRY, 2004, 76 (08) :2401-2405

[4] Photochemical alkylation of inorganic selenium in the presence of low molecular weight organic acids [J].

Guo, XM ;

Sturgeon, RE ;

Mester, Z ;

Gardener, GK .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2003, 37 (24) :5645-5650

[5] UV vapor generation for determination of selenium by heated quartz tube atomic absorption spectrometry [J].

Guo, XM ;

Sturgeon, RE ;

Mester, Z ;

Gardner, GJ .

ANALYTICAL CHEMISTRY, 2003, 75 (09) :2092-2099

[6] DETERMINATION OF SUB-MICROGRAM QUANTITIES OF MERCURY BY ATOMIC ABSORPTION SPECTROPHOTOMETRY [J].

HATCH, WR ;

OTT, WL .

ANALYTICAL CHEMISTRY, 1968, 40 (14) :2085-&

[7]

INGLE JD, 1988, SPECTROCHEMICAL ANAL, P280

[8] Hydride generation in analytical chemistry and nascent hydrogen: when is it going to be over? [J].

Laborda, F ;

Bolea, E ;

Baranguan, MT ;

Castillo, JR .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2002, 57 (04) :797-802

[9] The use of a modified Multimode Sample Introduction System for the simple and rapid determination of cadmium by chemical vapour generation atomic absorption spectrometry [J].

Ritschdorff, ET ;

Fitzgerald, N ;

Mclaughlin, RLJ ;

Brindle, ID .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2005, 60 (01) :139-143

[10] GENERATION OF CADMIUM ATOMS AT ROOM-TEMPERATURE USING VESICLES AND ITS APPLICATION TO CADMIUM DETERMINATION BY COLD VAPOR ATOMIC SPECTROMETRY [J].

SANZMEDEL, A ;

TEMPRANO, MCVHY ;

GARCIA, NB ;

DELACAMPA, MRF .

ANALYTICAL CHEMISTRY, 1995, 67 (13) :2216-2223

← 1 2 →