An 8‐Hydroxyquinoline Method for Labile and Total Aluminum in Soil Extracts

1 September 1983

journal article
research article
Published by Wiley in Soil Science Society of America Journal

Vol. 47 (5) , 893-897
https://doi.org/10.2136/sssaj1983.03615995004700050010x

Abstract

The 8‐hydroxyquinoline method was modified to measure kinetically labile Al in aqueous soil extracts containing Al‐complexing ligands and to measure total soluble Al after removal of fluoride and organic C. Nonlabile Al complexed by F, C, Si, and OH in the original samples is calculated as the difference between total and labile forms. The method measures as little as 100 ng of Al in soil extracts and natural water samples.