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当前位置: 首页 > 文章 > 加和法与一步法测定固体废弃物中的总氮 安徽农业科学 2010,38 (28) 15463-15464
Position: Home > Articles > Determination of the Total Nitrogen in Solid Waste with both Additive Method and One-step Method Journal of Anhui Agricultural Sciences 2010,38 (28) 15463-15464

加和法与一步法测定固体废弃物中的总氮

作  者：
海维燕;唐建;邱忠平;童霏
单  位：
西南交通大学生命科学与工程学院
关键词：
固体废弃物;加和法;一步法;总氮
摘  要：
[目的]研究固体废弃物总氮测定方法。[方法]对固体废弃物样品采用加和法、一步法测定其总氮含量,并对2种方法进行了对比。[结果]通过样品测试数据的比较,表明加和法测得的铵态氮和硝态氮之和与一步法所测总氮含量一致,加和法的RSD低于2.92%,一步法的RSD低于1.53%;加和法样品回收率为94.5%～102.9%,一步法样品回收率为95.8%～101.4%。[结论]2种方法的精确度和准确度均满足质控要求。相比之下,一步法精确度更高、回收效果更好。
译  名：
Determination of the Total Nitrogen in Solid Waste with both Additive Method and One-step Method
作  者：
Determination of the Total Nitrogen in Solid Waste with both Additive Method and One-step Method HAI Wei-yan et al (School of Life Science and Engineering,Southwest Jiaotong University,Chengdu,Sichuan 610031)
关键词：
Solid waste; Additive method; One-step method; Total nitrogen(TN)
摘  要：
[Objective]The testing method of the content of total nitrogen in solid waste was researched.[Method]The content of total nitro-gen in the sample of solid waste was measured with the additive method and one-step method and then the testing result from of both two meth-ods was compared.[Results]The result showed that the content of NH4 +-N and NO3-N,measured with the both two methods,was consist-ent.The value of the relatively standard deviation(RSD) measured with the additive method was less than 2.92% and the RSD measured with the one-step method,less than 1.53% .The recovery rate range of additive method and one-step method was 94.5%-102.9% and 95.8%-101.4% ,respectively.[Conclusion]The precision and accuracy of both of the methods was met with the requirement of quality control.By comparison,the one-step method was of higher accuracy and better recovery.

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