离子色谱法测定地表水氨的条件优化

基于美国Aquion ICS型离子色谱仪,优化离子色谱分析在饮用水氨检测中的应用条件,由实验结果所得的回归方程为A=0.2562ρ+0.008, 相关系数r=0.9998。在精密度检测中0.5 mg/L和10 mg/L的标准溶液所得标准偏差分别为1.130%和0.114%。在加标回收测试中加标量为1mg和2mg时,回收率在98%-102%、98%-100.1%。说明该方法总体准确度较高,可以满足检测需求。

Optimization of conditions for determination of ammonia in surface water by Ion Chromatography water

The application conditions of ion chromatography in ammonia detection of drinking water were optimized based on Aquion ICS. The regression equation was A=0.2562+0.008 and the correlation coefficient was R=0.9998. The standard deviations of 0.5 mg/L and 10 mg/L standard solutions were 1.130% and 0.114%, respectively. When the scalars of 1mg and 2mgwere added in the standard recovery test, the recovery rate was between 98%-102% and 98%-100.1. It shows that the method has high accuracy and can meet the requirements of detection.