Spectrophotometric determination of selenium(IV) with potassium butyl xanthate

Abstract

A simple and convenient method for the spectrophotometric determination of selenium(IV) has been developed using potassium butyl xanthate as an analytical reagent. The optimum concentration range evaluated by Ringbom's method was found to be 5–12 p.p.m. and the optimum pH range 2.0–4.7. The composition of the complex was studied by the molar ratio method and Job's method of continuous variations. The effect of foreign ions on the determination was also studied.