Abstract
The behaviour of styrene—divinylbenzene and bonded C 18 reversed-phases permanently coated with cetylpyridinium ion or hexadecyltrimethylammonium ion (“permanent coating” ion-interaction chromatography) were investigated for the determination of sulphur species in samples from studies on enviromnental control in metallurgical processes. The advantages of these types of exchanger are the ability to vary the ion-exchange capacity and the attainment of high column efficiency. Also demonstrated is the effect of an organic modifier on the control of retention and the wide linear range calibration curves ofbtained with these columns. Examples of application to the analysis of effluents and acid-tailings residues from metallurgical processing operations for the determination of sulphate, thiosulphate and thiocyanate anions are given. Detection was by indirect UV absorption.
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