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利用抑制型电导检测器离子色谱成功检测铝酸钠溶液中的NO3-和NO2-。离子色谱采用的是IonPacAS11-HC阴离子色谱柱、ASRS300 4-mm阴离子抑制器、IonPacAG11-HC阴离子保护柱、Chromeleon 6.60色谱工作站。该方法样品前处理简单仅稀释即可,整个分析过程在五分钟内完成。两离子的相对标准偏差都低于3.0%,回收率都高于99.0%,分析具有高选择性,高灵敏度,满足工业分析要求。
Successive Detection of NO3- and NO2- in Sodium Aluminate Solution by Suppressed Conductivity Detector Ion Chromatography. Ion chromatography using IonPacAS11-HC anion chromatography column, ASRS300 4-mm anion suppressor, IonPacAG11-HC anion guard column, Chromeleon 6.60 chromatography workstation. The method sample preparation can be simply diluted, the entire analysis process is completed within five minutes. The relative standard deviations of the two ions are less than 3.0%, the recovery rate is higher than 99.0%, the analysis has high selectivity, high sensitivity to meet the industrial analysis requirements.