摘要
通过比较3种酸体系及同一酸体系不同酸度下二苯碳酰二肼光度法测量水体中6价铬的研究,发现体积分数为5%的盐酸作检测体系时,分析效果最好,显著增大了Cr(VI)的线性范围,方法的重现性和准确性得到了很好的保证。该方法成本低、过程简单、分析速度快、便于操作,为二苯碳酰二肼光度法测水中6价铬提供了新的思路。
In this paper,the comparison of the analysis results of hexavalent chromium determined by diphenylcarbazide spectrophotometry in three acid system and different acidity of the same acid was studied.The results showed that the volume fraction of 5% hydrochloric acid system was the best one,which had low cost,fast analysis,simplified procedure and easily operation,and the large linear relationship,precision and accuracy were well guaranteed.It may provide a new way for determining hexavalent chromium in diphenylcarbazide spectrophotometry in water.
出处
《新乡学院学报》
2010年第1期36-37,49,共3页
Journal of Xinxiang University
关键词
二苯碳酰二肼
6价铬
盐酸
diphenylcarbazide
hexavalent chromium
hydrochloric acid
