离子色谱法中溴化物检出限的确定

The determination of detection limit for bromide by ion chromatography

离子色谱法是分析溴离子常用的方法。检出限是某特定分析方法在给定的置信度内可以从样品中检出待测物质的最小浓度或最小量,是对分析方法进行质量评价的重要指标。检出限的计算方法很多,通过比较,选择环境监测分析方法标准制修订技术导则(HJ 168-2010)对离子色谱法中溴化物的检出限进行了确定。

Ion chromatography is a common method for analyzing brimide ion. Detection limitisa kind of special analysis meth-od. By using this method and in a condition of given confidence coefficient, one can detect minimum concentration or minimum quantity of samples under test. It＇s an important indicator for qual ity evaluation of analysis method. There are many computing methods for detection limit, which are not explicitly stipulated. Through the comparison, the environmental monitoring analy-sis method standard and revision technology guideline （HJ168-2010） has been chosen in this paper. And the detection limit of bromide in ion chromatography has also been determined.