| 碱性过硫酸钾法测定总氮常见问题与解决办法 |
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| 引用本文： | 孟宪春,朱春媛,陈学玲.碱性过硫酸钾法测定总氮常见问题与解决办法[J].环境科学与管理,2010,35(5):126-128. |
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| 作者姓名： | 孟宪春 朱春媛 陈学玲 |
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| 作者单位： | 蓟县环境保护监测站,天津,蓟县,301900 |
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| 摘 要： | 使用国标《碱性过硫酸钾氧化-紫外分光光度法》（GB11894—1989），测定地面水、地下水中的总氮时，在严格按该方法的原理，分析步骤操作的情况下，依然会出现空白值偏高、有时总氮测定值小于氨氮测定值的情况，而找不出问题的所在。本文参阅有关技术资料并根据工作实际经验，对碱性过硫酸钾紫外分光光度法测定总氮常见问题进行了总结、分析和研究，找出了实验中出现问题的原因并进行了验证。
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| 关 键 词： | 总氮测定 过硫酸钾 问题 办法 |
Alkaline Potassium Persulfate UV Spectrophotometric Determination of Total Nitrogen Frequently Asked Questions and Solutions |
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| Meng Xianchun,Zhu Chunyuan,Chen Xueling.Alkaline Potassium Persulfate UV Spectrophotometric Determination of Total Nitrogen Frequently Asked Questions and Solutions[J].Environmental Science and Management,2010,35(5):126-128. |
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| Authors: | Meng Xianchun Zhu Chunyuan Chen Xueling |
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| Institution: | Meng Xianchun,Zhu Chunyuan,Chen Xueling(Jixian Environmental Protection Monitoring Station,Jixian 301900,China) |
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| Abstract: | While we used GB(11894-1989)to determine the total nitrogen of surface water and groundwater with rigorous methods and step by step operation,blank value still appeared too high,sometimes the measured values of total nitrogen is less than ammonia nitrogen,but we were unable to find the problem.We referenced the relevant technical information and work experience in the article,using acidic potassium persulfate UV spectrophotometer to determine the frequent questions of the total nitrogen.Then we did the summ... |
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| Keywords: | determination of total nitrogen potassium persulfate problems methods |
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