Rapid determination of sulphate in natural waters and plant digests by continuous flow injection turbidimetry

Abstract

The turbidimetric determination of sulphate as barium sulphate has been adapted to the continuous flow injection procedure of Růžička and co-workers. The effects of reagent composition, reagent flow-rates and length of mixing coils have been investigated. Optimum conditions were established for the determination of sulphate in natural waters and in plant digests. The results agree satisfactorily with those obtained by a standard turbidimetric method and analyses can be carried out at a rate of up to 180 samples per hour.