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研究了利用光度显色剂偶氮胂 - DCS作为钙镁联合滴定指示剂的可能性及使用该指示剂滴定钙镁的准确性 ,与常用的钙镁络合滴定指示剂进行了比较 ,并成功地应用于水泥试样中钙镁含量测定。结果表明 ,偶氮胂 - DCS是一种良好的钙镁络合滴定指示剂
The feasibility of using arsenazo-DCS as a photometric indicator of calcium-magnesium titration and the accuracy of titration of calcium and magnesium using this indicator were studied. The results were compared with the commonly used calcium-magnesium complexometric titration indicator and successfully Applied to the determination of calcium and magnesium in cement samples. The results show that arsenazo - DCS is a good indicator of calcium and magnesium complexation titration