【摘要】 本文新开发出多种检测矿泉水中硅酸盐的离子色谱方法,包括等度非抑制型电导检测法、等度非抑制型紫外检测法和抑制型紫外检测法,并将三种方法与已有梯度非抑制型电导检测法进行了详尽的比较。文中三种新方法选取的色谱柱均为高容量选择性IonPac AS22色谱柱,配合使用IonPac AG14A保护柱,碳酸盐等度淋洗。几种方案各具特点,均可准确分析矿泉水中硅酸盐的含量,可按照实际情况灵活选用。后期配合Chromeleon 6.8色谱工作站的丰富功能,辅助完成数据处理工作,以得到满意结果。更多还原

【Abstract】 The present paper developed three new ion chromatography methods to analyse silicate in mineral water including isocratic non-suppressed conductivity method,isocratic non-suppressed UV/Vis method and isocratic suppressed UV/Vis method.We compared the three methods with the existing gradient non-suppressed conductivity method in detail.All three methods were developed based on high capacity IonPac AS22 analyse column and Ionpac AS14A guard column with carbonate/bicarbonate isocratic eluent.Above three method have different advantages and all of them can be used to accurately measure silicate concentration in mineral water.We can choose asappropriate method for different status.We use some useful functions of the Chromeleon 6.8 software for data processing,which can help getting better result.更多还原