| 分光光度法测定水的总硬度 |
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| 引用本文： | 黄小梅. 分光光度法测定水的总硬度[J]. 达县师范高等专科学校学报, 2007, 17(2): 48-49 |
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| 作者姓名： | 黄小梅 |
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| 作者单位： | 四川文理学院化学系,四川达州635000 |
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| 摘 要： | 研究了用分光光度法测定水的总硬度的一种简易方法.利用置换反应将水中的钙定量地转换为镁,用变色酸2R作显色剂,在PH=10的氨性缓冲溶液中测定.此方法可用于测定清洁水的总硬度.
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| 关 键 词： | 水 硬度 分光光度法 变色酸2R |
| 文章编号： | 1008-4886（2007）02-0048-02 |
| 修稿时间： | 2006-12-31 |
Testing the Total Hardness of Water with the Spectrophotometric Determination Method |
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| HUANG Xiao-mei. Testing the Total Hardness of Water with the Spectrophotometric Determination Method[J]. Journal of Daxian Teachers College, 2007, 17(2): 48-49 |
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| Authors: | HUANG Xiao-mei |
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| Affiliation: | Department of Chemistry, Siehuan University of Arts and Science, Dazhou Siehuan 635000 |
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| Abstract: | In this paper, an easy and simple method of spectrophotometrie determination of the total hardness of water is described. Calcium in the water is to be quantificationally transformed into Magnesium by means of the replacement reaction. Chromotrope 2R is taken as the colour reagent, and the determination is carried out in the ammonia buffer solution ofPH 10. Therefore, this method can be applied into the determination of the total hardness of water. |
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| Keywords: | water hardness spectrophotometry chromotrope 2R |
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