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Effect of sample preparation on the operational speciation of cadmium and lead in a freshwater sediment

Davidson, C M and Wilson, Lorna E. and Ure, A M (1999) Effect of sample preparation on the operational speciation of cadmium and lead in a freshwater sediment. Fresenius' Journal of Analytical Chemistry, 363 (1). pp. 134-136. ISSN 0937-0633

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Abstract

The three-stage sequential extraction procedure recommended by BCR has been applied in the operational speciation of cadmium and lead in a relatively unpolluted freshwater sediment, following various types of sample pre-treatment. Changes in speciation occurred when the sediment was air-dried, oven-dried or frozen. Cadmium speciation was particularly perturbed by freezing, whilst lead was more affected by oven-drying. Metals were deter mined by electrothermal atomic absorption spectrometry, using direct calibration with reagent-matched standard solutions.

Item type: Article
ID code: 39899
Keywords: cadmium, freshwater sediment, three-stage sequential extraction procedure , Chemistry
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 31 May 2012 15:04
    Last modified: 17 Jul 2013 11:51
    URI: http://strathprints.strath.ac.uk/id/eprint/39899

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