氯化钙中硫酸根离子的快速测定

Rapid Determination of Sulfate Radical Ion in Calcium Chloride

通过试验研究论证利用721型分光光度计,在酸性介质中,钡离子与硫酸根离子生成难溶硫酸钡,使溶液浑浊,采用乙醇作稳定剂,利用分光光度计进行比色,并对一组氯化钙产品中硫酸根质量分数进行快速测定,测定结果与重量法测定结果进行分析和比较,证明该方法能够为客户提供准确、可靠的分析结果,是一种准确测定氯化钙中硫酸根的快速分析方法。

Through the experimental study to demonstrate that in acid medium,by using 721 type spectrophotometer, barium ion and sulfate r adical ions generate into undissolved barium sulfate to make the solution nepheloid, besides, using ethanol as a stabilizer and using spectrophotomet er to take color comparison, and also take rapid determination on the quality score of sulfate radical in a group of calcium chloride products. Make analysis and comparison of the determination results and gravimetric method determine results,so that to prove that the method can provide custome rs with accurate and reliable analysis results,and it is a kind of rapid analysis method for accurately measure the sulfate radical in calcium chloride.