引用本文:林旭芳,徐彬.水中总氮快速测定实验方法研究[J].环境监控与预警,2012,4(6):27-28
.Study on Rapid Determination Method of Total Nitrogen in Water[J].Environmental Monitoring and Forewarning,2012,4(6):27-28
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 2607次   下载 134 本文二维码信息
码上扫一扫!
分享到: 微信 更多
水中总氮快速测定实验方法研究
林旭芳,徐彬1,2
1、宁波市城市排水有限公司;2、南京市建邺区环境保护局
摘要:
针对现行总氮标准测定方法存在的操作繁琐、耗时长等缺点,采用COD消解加热器消解代替原标准方法中的高温高压消解步骤,以简化实验步骤、缩短用时,建立快速测定水中总氮的分析方法。通过对本方法进行平行实验、加标回收实验以及与标准方法的对比实验等分析实验结果,方法的线性范围为0~4.00mg/L,平均加标回收率是102.3%,标样平行实验的相对标准偏差是1.05%,准确度、精确度和回收率均达到标准要求,方法具有一定的推广价值。
关键词:  总氮  快速测定  COD消解加热器
DOI:
分类号:
基金项目:
Study on Rapid Determination Method of Total Nitrogen in Water
Abstract:
A rapid determination method of total nitrogen using a COD digestion heater was introduced. The method overcame the shortcomings of the standard method which were complicated and time-consuming. The parallel test, recovery test and the comparing test with standard method were tried. The linear range of the method was 0~4.00mg/L. The average recoveries were 102.3%. Parallel experimental relative standard deviation was 1.05%. This method was novel, simple and precise. This method has no significant difference in accuracy, precision and recovery compared to the standard method and possessed of popularization and application value.
Key words:  total nitrogen  the rapid determination  COD digestion heater