Determination of seven trace elements in environmental water samples by inductively coupled plasma mass spectrometry with on-line preconcentration

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TypeArticle
Journal titleJapan Analyst
ISSN05251931
Volume42
Issue7
Pages423428; # of pages: 6
AbstractAn on-line preconcentration method was studied to allow the simultaneous determination of Mn, Co, Ni, Cu, Zn, Cd and Pb in 5 ml environmental water samples by inductively coupled plasma mass spectrometry. A semiautomated system with a microprocessor-controlled high performance quaternary gradient pump and valves was used to lead and transport the mobile phase. The system includes a column containing silicaimmobilized 8-hydroxyquinoline. The pH of the samples was adjusted to 8 to improve the retention of several elements, in particular manganese. Quantitative elution from the column took 3.5 min with a 1.5 M HCl/0.6 M HNO_3 mixture at a flow rate of 2.0ml min^<-1>. Mn and Co were determined by a standard additions technique, and stable isotope dilution was applied for Ni, Cu, Zn, Cd and Pb. The good precision and accuracy of this method are demonstrated by analyzing standard samples of riverine water (SLRS-2), estuarine water (SLEW-1) and coastal seawater (CASS-2). The detection limits of the method range from 7ng l^<-1>for Cd to 130ng l^<-1> for Zn.
Publication date
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedNo
Identifier10166798
NRC number4166
NPARC number8896794
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Record identifier4332055c-ba31-4f44-8d67-59e1256206ad
Record created2009-04-22
Record modified2016-05-09
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