| 测定总氮时影响空白吸光值的因素 |
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| 引用本文： | 董纪珍,宋莹,李建坡,丁致英.测定总氮时影响空白吸光值的因素[J].光谱实验室,2006,23(4):791-796. |
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| 作者姓名： | 董纪珍 宋莹 李建坡 丁致英 |
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| 作者单位： | 北京城市排水集团有限责任公司水质检测中心,北京市,100022;北京城市排水集团有限责任公司水质检测中心,北京市,100022;北京城市排水集团有限责任公司水质检测中心,北京市,100022;北京城市排水集团有限责任公司水质检测中心,北京市,100022 |
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| 摘 要： | 针对GB 11894-89测定污水中总氮空白值偏高的情况,分析了碱性过硫酸钾本身以及纯度的影响、消解量、消解温度和时间、去离子水纯度、玻璃器皿的洁净度、碱性过硫酸钾存储时间、环境因素等影响因素,找出了实验出现问题的原因,并进行了校正.
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| 关 键 词： | 总氮 空白 过硫酸钾 紫外可见分光光度法 |
| 文章编号： | 1004-8138(2006)04-0791-06 |
| 收稿时间： | 2006-03-21 |
| 修稿时间： | 2006-04-14 |
Effective Factors upon the Adsorbance of Blank Tests in the Determination of the Total Nitrogen |
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| DONG Ji-Zhen,SONG Ying,LI Jian-Po,DING Zhi-Ying.Effective Factors upon the Adsorbance of Blank Tests in the Determination of the Total Nitrogen[J].Chinese Journal of Spectroscopy Laboratory,2006,23(4):791-796. |
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| Authors: | DONG Ji-Zhen SONG Ying LI Jian-Po DING Zhi-Ying |
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| Institution: | Water Quality Analysis Center ,Beijing Drainage Group Co. Ltd. , Beijing 100022 , P. R. China |
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| Abstract: | Due to the higher adsorbance of blank solution in the determination of the total nitrogen in the sewage by GB11894-1989,the factors,such as purity of oxidant,the quantity of the digestion,the purity of distilled water,the time and temperature of the digestion,the deposited time of oxidation solution,experimental environment,etc,were analyzed and improved. |
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| Keywords: | Total Nitrogen Blank Test Potassium Persulfate Ultraviolet Spectrophotometry |
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