| 分光光度法测定工业用水总硬度 |
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| 引用本文： | 龙建林.分光光度法测定工业用水总硬度[J].四川师范大学学报(自然科学版),1994,17(1):86-89. |
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| 作者姓名： | 龙建林 |
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| 作者单位： | 四川达县师范专科学校 |
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| 摘 要： | 本文介绍了用分光光度法测定工业用水总硬度的简易方法，利用置换反应，将水中的钙定量地转变为镁，用铬黑Ｔ作显色剂，在ｐＨ９．６的氨性缓冲液中测定，此方法可用于测定水的总硬度且结果与滴定分析很吻合。
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| 关 键 词： | 分光光度法 工业用水 硬度 测定 |
SPECTROPHOTOMETRIC DETERMINATION OF HARDNESS OF INDUSTRIAL WATER |
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| Long Jianlin.SPECTROPHOTOMETRIC DETERMINATION OF HARDNESS OF INDUSTRIAL WATER[J].Journal of Sichuan Normal University(Natural Science),1994,17(1):86-89. |
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| Authors: | Long Jianlin |
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| Abstract: | In this paper,an easy and simple method of spectrophometric determination of the total hardness of industrial water is described. The total hardness of water is the total amount of calcium and magnesium in water.Calcium is to be transformed into magnesium quantitavity by means of the replacement reaction. Eriochrome black T is taken as the colour reagent,and the determination is carried out in the ammonia buffer solutin of pH9. 6.This method is applied to the determinatin of the total hardness of water,and the results obtained agree very well with those obtnined by titrimetric analysis. |
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| Keywords: | hardness of water spectrophotometry Eriochrome black ammonia butter solution |
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