水中总氮测定方法研究进展  

Development of Determination of Total Nitrogen in Water

作　　者：胡潇涵 杨蕾 李燕 张琳 菲尔汗 

机构地区：[1]新疆环境保护科学研究院,新疆乌鲁木齐830011 [2]新疆环境污染监控与风险预警重点实验室,新疆乌鲁木齐830011 [3]中煤科工集团西安研究院有限公司,陕西西安710077

出　　处：《新疆环境保护》2015年第2期35-37,44,共4页Environmental Protection of Xinjiang

摘　　要：水中总氮含量的测定,受到无氨水的制备、试剂纯度、试剂配制、实验室环境、玻璃器皿洗涤、消解条件控制等因素的制约。本文介绍了上述各制约因素对国标方法 -碱性过硫酸钾消解紫外分光光度法实验结果的影响,对比几种常见测定方法,并探讨了目前存在的主要问题。The determination of total nitrogen in water is affected by lots of factors,such as the preparation of non-ammonia water,the purity and preparation of reagents,laboratory environment,washing of glassware and digestion conditions. Effects of the above restrict factors on the determination result of total nitrogen were studied,in which alkaline potassium persulfate digestion- UV spectrophotometric method（ HJ 636- 2012） was used. Several methods were compared,and the current problems were discussed.

关 键 词：总氮 无氨水 试剂 环境 洗涤 消解 

分 类 号：X832[环境科学与工程—环境工程]