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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, Allan 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, Biochemistry
Subjects:Science > Chemistry
Department:Faculty of Science > Pure and Applied Chemistry
Depositing user: Pure Administrator
Date deposited:31 May 2012 14:04
Last modified:24 May 2019 02:22
URI:https://strathprints.strath.ac.uk/id/eprint/39899
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