| 微波消解-紫外分光光度法测定水中总氮 |
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| 引用本文： | 廉晶晶,罗泽娇,刘江霞.微波消解-紫外分光光度法测定水中总氮[J].安全与环境工程,2009,16(1). |
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| 作者姓名： | 廉晶晶 罗泽娇 刘江霞 |
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| 作者单位： | 中国地质大学生物地质与环境地质教育部重点实验室,武汉,430074 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 在分析比较前人实验方法的基础上,采用微波消解一紫外分光光度法测定水中总氮含量.对几种常见态氮溶液进行消解,如硝态氮、亚硝态氮和铵态氮,在确定消解时间后,作出校准曲线,并进行精密度检验.结果表明,该方法与国家标准方法相比具有操作简单、省时、消解完全、精密度较高等优点.
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| 关 键 词： | 总氮 微波消解 高压蒸汽消解 |
Determination of Total Nitrogen in Water by Microwave Digestion-UV Spectrophotometer |
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| LIAN Jing-jing,LUO Ze-jiao,LIU Jiang-xia.Determination of Total Nitrogen in Water by Microwave Digestion-UV Spectrophotometer[J].Safety and Environmental Engineering,2009,16(1). |
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| Authors: | LIAN Jing-jing LUO Ze-jiao LIU Jiang-xia |
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| Institution: | Key Laboratory of Biogeology and Environmental Geology of Ministry of Education;China University of Geosciences;Wuhan 430074;China |
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| Abstract: | After summarizing and comparing the methods and results of previous researches,this paper further studied the total nitrogen measurement by the introduction of Microwave Digestion-UV Spectrophotometer method.It was compared with Chinese standard method(GB11894-89) by measuring solutions of known concentrations.Unlike the researches shown in the literature,it digested several kinds of nitrogen,such as ammonia nitrogen,nitrite nitrogen and nitrate nitrogen.When the optimum digestion time was determined,the st... |
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| Keywords: | total nitrogen microwave digestion high pressure steam digestion |
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