该方法用于通过离子色谱法（IC）测定水、废碱液、工艺流中硫酸盐和硫代硫酸盐的含量。硫酸盐和硫代硫酸盐的定量范围为0.004至5质量-%。

This method is for determining levels of sulfate and thiosulfate in aqueous, spent caustic, process streams by ion chromatography (IC). The range of quantitation for sulfate and thiosulfate is 0.004 to 5 mass-%.