Determination of trace metals in estuarine and sea-water reference materials by high resolution inductively coupled plasma mass spectrometry

被引:134
作者
Rodushkin, I [1 ]
Ruth, T [1 ]
机构
[1] LULEA UNIV TECHNOL,SVENSK GRUNDAMNESANAL AB,S-97187 LULEA,SWEDEN
关键词
high resolution inductively coupled plasma mass spectrometry; sea-water analysis; spectral interference; internal standardization;
D O I
10.1039/a702486j
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A rapid method for the determination of 15 trace metals in saline mater samples: by high resolution inductively coupled plasma mass spectrometry (HR-TCP-MS) was tested. The method was validated by the analysis of estuarine (SLEW-2), coastal (CASS-2) and open ocean (NASS-4) water certified reference materials, No sample-pre-treatment other than acidification and dilution mas carried out, Results in good agreement with certified values (where available) were obtained for all metals except for Cd and Zn, Discrepancies for these elements are explained by an unresolved MoO interference (Cd) and insufficient internal standard correction (Zn). Present data indicate that HR-ICP-MS is applicable to the rapid and accurate multi-element determination, virtually free from spectral interferences, of trace metals at pg ml(-1) levels in saline water.
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页码:1181 / 1185
页数:5
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