Issue 7, 2002
From the journal:

Journal of Analytical Atomic Spectrometry

Determination of As, Bi and Se in acidified slurries of marine sediment, soil and coal samples by hydride generation electrothermal atomic absorption spectrometry

Jorge Moreda-Piñeiro,*a   Purificación López-Mahía,a   Soledad Muniategui-Lorenzo,a   Esther Fernández-Fernándeza  and  Darío Prada-Rodrígueza  

* Corresponding authors

a Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira s/n, Coruña, Spain
E-mail: jmoreda@udc.es

Abstract

Ir-treated graphite tubes were used for preconcentration and atomisation of the As, Bi and Se hydrides generated from acidified slurries of marine sediment, soil and coal samples. A batch mode generation system was used for the hydride generation. The variables affecting the acidified slurry preparation procedure (assisted by ultrasonic energy) and the hydride generation/trapping/atomisation processes were studied by using a Plackett–Burman design. The sensitivity (characteristic masses of 65, 75 and 100 pg, for As, Bi and Se, respectively) and precision (RSD% lower than 10%) obtained were adequate for As, Bi and Se determination in slurry samples. The accuracy of the method was verified by analysing PACS-1 (Marine Sediment), GBW-07401 (Soil) and NIST SRM 1632c (Coal) certified reference materials.

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Article information

DOI
https://doi.org/10.1039/B109471H
Article type
Paper
Submitted
17 Oct 2001
Accepted
10 May 2002
First published
18 Jun 2002

J. Anal. At. Spectrom., 2002,17, 721-726

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Determination of As, Bi and Se in acidified slurries of marine sediment, soil and coal samples by hydride generation electrothermal atomic absorption spectrometry

J. Moreda-Piñeiro, P. López-Mahía, S. Muniategui-Lorenzo, E. Fernández-Fernández and D. Prada-Rodríguez, J. Anal. At. Spectrom., 2002, 17, 721 DOI: 10.1039/B109471H

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