RAPID-DETERMINATION OF MERCURY IN ENVIRONMENTAL MATERIALS USING ONLINE MICROWAVE DIGESTION AND ATOMIC FLUORESCENCE SPECTROMETRY

被引：37

作者：

MORALESRUBIO, A

MENA, ML

MCLEOD, CW

机构：

[1] SHEFFIELD HALLAM UNIV,ENVIRONM RES CTR,DIV CHEM,SHEFFIELD S1 1WB,S YORKSHIRE,ENGLAND

[2] UNIV VALENCIA,DEPT QUIM ANAL,E-46100 VALENCIA,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 308卷 / 1-3期

关键词：

FLUOROMETRY; FLOW INJECTION; MERCURY; ENVIRONMENTAL ANALYSIS;

D O I：

10.1016/0003-2670(94)00666-A

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A procedure for on-line microwave digestion and determination of mercury in environmental materials by atomic fluorescence spectrometry has been developed. The method is based on the direct injection of slurried samples (acidified) into a carrier stream of hydrochloric acid. Microwave digestion in a Teflon coil (4 m) permits, in only 50 s, the quantitative extraction of Hg from the solid samples. In combination with atomic fluorescence detection the on-line digestion/procedure permits the determination of mercury with a throughput of 15 samples per hour. Based on a sample injection volume of 400 mu\, precision was 0.5-1.5% R.S.D. and the limit of detection was 0.09 ng g(-1) Application to a range of certified environmental reference materials was demonstrated.

引用

页码：364 / 370

页数：7

共 23 条

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[Anonymous], 1988, INTRO MICROWAVE SAMP

[2]

Bowen H. J. M, 1979, ENV CHEM ELEMENTS

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