title: The determination of lead in mosses by means of its catalytic effect on the persulphate oxidation of Pyrogallol Red.
abstract: Lead is determined in aqueous solution in the concentration range 0.002-10 mug/ml by its catalytic effect on the oxidation of Pyrogallol Red at pH 8.5. The method has been applied to the determination of lead in mosses by means of a wet ashing procedure using nitric and perchloric acids and separation from interfering ions by extraction as the dithizone complex into chloroform, and back-extraction.
authors.affiliation: Department of Physical Sciences, The Polytechnic, Wolverhampton, England.
authors.forename: R G
authors.initials: RG
authors.lastname: Anderson
authors.forename: B C
authors.initials: BC
authors.lastname: Brown