广州化学2012，Vol.37Issue(3)：14-17,23,5.
水质中总氮测定的影响因素分析
Study on the Influencing Factors of Total Nitrogen Determination in Water Quality Analysis
方熘1
作者信息
- 1. 福建船政交通职业学院安全技术与环境工程系,福建福州350007
- 折叠
摘要
Abstract
In this paper, total nitrogen in water was determined by alkaline potassium persulfate digestion-ultraviolet spectrophotometric method. The influencing factors were discussed in detail. It was shown that the blank absorbance in the determination of total nitrogen is obviously influenced by the purity of reagent and the conserving time of alkaline potassium persulfate. Furthermore, the digestion time and the cooling time after digestion also affect the blank absorbance and relative error. Under the optimum conditions, the determining result was accurate and reliable.关键词
总氮/碱性过硫酸钾消解/紫外分光光度法/影响因素Key words
total nitrogen/alkaline potassium persulfate digestion/ultraviolet spectrophotometric method/influencing factors分类
化学化工引用本文复制引用
方熘..水质中总氮测定的影响因素分析[J].广州化学,2012,37(3):14-17,23,5.
