| 分光光度法测定铬的改进 |
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| 引用本文： | 张慧. 分光光度法测定铬的改进[J]. 宁波大学学报(理工版), 2002, 15(2): 42-44 |
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| 作者姓名： | 张慧 |
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| 作者单位： | 宁波大学建筑工程与环境学院,浙江宁波,315211 |
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| 摘 要： | 用过硫酸钾代替高锰酸钾作氧化剂,用于铬的二苯碳酰二肼比色分析法,测定的回收率为94．9％,相对标准偏差为0．65％,具有操作简便,快捷,精密度高,重现性好等特点,对水样进行分析能得到满意的结果。
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| 关 键 词： | 铬 分光光度法 氧化剂 过硫酸钾 |
| 文章编号： | 1001-5132(2002)02-0042-03 |
| 修稿时间： | 2002-02-26 |
Improvement on the Spectrophotometric Method to Determine Chromium |
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| ZHANG Hui. Improvement on the Spectrophotometric Method to Determine Chromium[J]. Journal of Ningbo University(Natural Science and Engineering Edition), 2002, 15(2): 42-44 |
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| Authors: | ZHANG Hui |
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| Abstract: | An improved spectrophotometric method to determine chromium in water is introduced. Potassium supersulfate s used as an oxidizer instead of potassium permanganate. The average callback rate of the method is 94.9%, relative standard error is 0.65%. It is shown that the method is quick, highly accurate, and easy to handle. The analysis reliability of water quality by using this method is guaranteed. |
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| Keywords: | Chromium spectrophotometric Oxidizer potassium supersulfate |
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