本文探讨了一种化学发光法检测和离子色谱法同时测定流动体系中的铬(Ⅲ)和铬(Ⅵ)的方法。用 Dionex 阳离子交换防护柱分离铬(Ⅲ)和铬(Ⅵ),铬(Ⅵ)用亚硫酸钾还原成铬(Ⅲ), In this paper, a method for simultaneous determination of chromium (Ⅵ) and chromium (Ⅵ) in mobile systems by chemiluminescence detection and ion chromatography was discussed. Chromium (Ⅲ) and chromium (Ⅵ) were separated by Dionex cation exchange column, chromium (Ⅵ) was reduced to chromium (Ⅲ) with potassium sulfite,