Halide analysis in soils with a chloride titrator and a bromide electrode

Abstract
An araperometric titration method for Cl was suitable for reproducible analysis of equimolar Cl. Br and I in all possible combinations in the range 0.125 to 2.50 millimolar (mM). A solid state Br specific ion electrode exhibited a reproducible Nernstian response to Br over the range 0.005 to 1 mM, with minimal Cl interference. Bromide and Cl added to a lysimeter and a field were quantitatively recovered by estimation of (Cl + Br) amperometrically and Br potentiometrically.

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