简述碱性过硫酸钾法测定水中总氮时出现的问题及解决措施

The Brief Description Problems and Solutions of Determination of Total Nitrogen in Water by Alkaline Potassium Persulfate Method

碱性过硫酸钾法测定水中总氮是比较常用的方法,此方法操作简单,便于分析且成本低,但此方法存在空白值偏高进而影响总氮结果准确度的问题。本文主要针对此方法中出现的问题进行研究并提出解决措施。

Alkaline potassium persulfate method is a common method for the determination of total nitrogen in water.This method is simple to operate,easy to analyze and low in cost,but there are high blank values in this method,which affects the accuracy of total nitrogen results.This paper mainly studies the problems in this method and puts forward some solutions.