Abstract
A molecular emission cavity detector is attached to a flow injection system for the determination of sulphide, sulphite and sulphate in the ranges 2–130, 3–150 and 5–250 ng S, respectively, in 3-μ1 samples. The sample throughput is abort 100 h −1. Resolution of mixtures of these anions is also possible, based on the sequential appearance of their S 2 emission peaks. The use of a hydrogen peroxide carrier stream allows the determination of total sulphur.
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