| 酸体系对光度法测定水中Cr~(6+)结果的影响 |
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| 引用本文： | 赵阳,李海波,赵一凡. 酸体系对光度法测定水中Cr~(6+)结果的影响[J]. 平原大学学报, 2010, 0(1) |
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| 作者姓名： | 赵阳 李海波 赵一凡 |
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| 作者单位： | 新乡市环境保护监测站; |
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| 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。
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| 关 键 词： | 二苯碳酰二肼 6价铬 盐酸 |
The Impact of Acid System on Determination Hexavalent Chromium in Water by Spectrophotometry |
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| ZHAO Yang,LI Hai-bo,ZHAO Yi-fan. The Impact of Acid System on Determination Hexavalent Chromium in Water by Spectrophotometry[J]. Journal of Pingyuan University, 2010, 0(1) |
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| Authors: | ZHAO Yang LI Hai-bo ZHAO Yi-fan |
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| Affiliation: | Xinxiang Environmental Protection Monitoring Center/a>;Xinxiang 453002/a>;China |
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| Abstract: | 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 diphe... |
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| Keywords: | diphenylcarbazide hexavalent chromium hydrochloric acid |
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