The determination of native ionic copper concentrations and copper complexation in peat soil extracts

Kerven G.L., Edwards D.G. and Asher C.J. (1984) The determination of native ionic copper concentrations and copper complexation in peat soil extracts. Soil Science, 137 2: 91-99.

Author Kerven G.L.
Edwards D.G.
Asher C.J.
Title The determination of native ionic copper concentrations and copper complexation in peat soil extracts
Journal name Soil Science   Check publisher's open access policy
ISSN 1538-9243
Publication date 1984-01-01
Sub-type Article (original research)
Volume 137
Issue 2
Start page 91
End page 99
Total pages 9
Subject 1111 Nutrition and Dietetics
1904 Performing Arts and Creative Writing
Abstract In acid peaty soils most of the copper in the soil solution is present as organic complexes. This paper describes methods for measuring total soil solution copper by flameless atomic absorption spectroscopy and estimating the proportion of this copper that is complexed using copper titration and a copper ion selective electrode. With these acidic peats of diverse origin, total copper in solution at natural pH values (3.4 to 3.5) ranged from 0.14 to 0.2 μM. of this, 60 to 90% was complexed. Raising the pH of aqueous extracts to about 6.0 increased the degree of complexation of soluble copper in extracts of all three peats to >98%. We discuss the results in relation to current thinking about the nature of copper complexation by humic and fulvic acids.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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