硫化物标准溶液配制方法的研究及应用

The study of preparation method of sulfide standard solution with total differential spectrophotometric method and its application

用改进的乙基蓝法和用全差示光度法,研究了硫化物标准溶液的配制方法.通过形成ZnS胶体,用OP作分散剂和乙醇增加分散效果,三乙醇胺控制溶液的酸度,提出了改进的硫化物标准溶液配制法,获得的硫化物标准溶液稳定性高,用于实际样品的分析,获得令人满意的结果.

The preparation method of sulfide standard solution was studied with improved ehhylene blue method and total differential spectrophotometric method. OP was used as dispersant and triethanolamine was used to control acidity. Alcohol was used to enhance the dispersing effect. Then, a improved preparation method of sulfide standard solution was presented through the development of ZnS colloid. The presented method was used to determine the actual sample with satisfactory results.