Issue 7, 2002
From the journal:

Journal of Analytical Atomic Spectrometry

Iridium as a permanent modifier for determination of cadmium and lead in sediment and biological samples by furnace atomization plasma emission spectrometry

Patricia Grinberg,a   Reinaldo C. Camposb  and  Ralph E. Sturgeon*a  

* Corresponding authors

a Institute for National Measurements Standards, National Research Council of Canada, Ottawa, Ontario, Canada
E-mail: ralph.sturgeon@nrc.ca

b Department of Chemistry, Pontifícia Universidade Católica do Rio de Janeiro, Rua Marquês de São Vicente, 225, Rio de Janeiro-RJ, Brazil

Abstract

The use of iridium as a permanent modifier for the determination of lead and cadmium in marine sediment and biological tissues by furnace atomization plasma emission spectrometry (FAPES) was evaluated. The Ir coating procedure, atomization conditions and FAPES parameters were optimized for best analytical response and minimum background signal. Good precision (less than 3% RSD) can be achieved with the proposed method. Certified Reference Materials from the National Research Council of Canada were analyzed to verify the accuracy of this technique. Matrix interference was compensated for by the use of standard additions calibration and good agreement was achieved between found and certified values. Detection limits of 3.8 ng g−1 for Pb and 4.0 ng g−1 for Cd in MESS-3 and PACS-2 marine sediment and 4.1ng g−1 for Pb and 2.2 ng g−1 for Cd in DOLT-2 and TORT-2 biological tissues were obtained.

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Article information

DOI
https://doi.org/10.1039/B203030F
Article type
Paper
Submitted
26 Mar 2002
Accepted
29 May 2002
First published
18 Jun 2002

J. Anal. At. Spectrom., 2002,17, 693-698

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Iridium as a permanent modifier for determination of cadmium and lead in sediment and biological samples by furnace atomization plasma emission spectrometry

P. Grinberg, R. C. Campos and R. E. Sturgeon, J. Anal. At. Spectrom., 2002, 17, 693 DOI: 10.1039/B203030F

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