| 结晶紫褪色分光光度法测定SO_2的研究 |
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| 引用本文： | 黄典文,庄敬湖,罗雪莲. 结晶紫褪色分光光度法测定SO_2的研究[J]. 中国环境监测, 1999, 0(3) |
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| 作者姓名： | 黄典文 庄敬湖 罗雪莲 |
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| 作者单位： | 广东工业大学化学工程系 |
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| 摘 要： | 在碱性介质中，ＳＯ２能使结晶紫褪色且褪色的程度随ＳＯ２量的增加而呈线性关系，据此建立了分光光度法测定ＳＯ２的新方法，确定了显色测定的最佳条件。方法的最大吸收波长在６００ｎｍ处，表观摩尔吸光系数为７３×１０３Ｌ／ｍｏｌ·ｃｍ。ＳＯ２量在０～１００μｇ／２５ｍｌ范围内符合比尔定律
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| 关 键 词： | SO_2 结晶紫 褪色作用 分光光度法 |
Study of the Spectrophotometric Determination of Sulfur Dioxide by Decolourizing Crystal Violot |
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| Huang Dianwen,et al. Study of the Spectrophotometric Determination of Sulfur Dioxide by Decolourizing Crystal Violot[J]. Environmental Monitoring in China, 1999, 0(3) |
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| Authors: | Huang Dianwen et al |
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| Abstract: | A spectrophotometric method for the determination of sulfur dioxide by decolourizing crystal violot has been studied.In 3210-510410-4mol/L NaoH medium,the decrease in colour has been to the directly proportional to the amount of sulfur dioxide.The maximam absorpitivity wavelength is 600nm.The malar absorpivity is 73103L/molcm.Beer's law is obeyed from 0 to 100g/25ml of sulfur dioxide.The method was used for determinating sulfur dioxide in exhaust gas satisfactorily. |
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| Keywords: | Sulfur dioxideCrystal violotDecolour reactionSpectrophotometric method |
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