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用非抑制型离子色谱法测定了碱金属和碱土金属离子 .以酒石酸为流动相测定碱金属离子 ,以酒石酸 -乙二胺为流动相测定碱土金属离子 .研究了淋洗液浓度对保留值的影响 ,当淋洗液浓度增大时 ,保留值减小 .选择 6.0mmol/L酒石酸作流动相测定了 L i+、Na+、NH+4 、K+和 Rb+的检出限及线性范围 ,选择 4.0 mmol/L 酒石酸 -2 .0 mmol/L 乙二胺作流动相测定了 Mg2 +、Ca2 +、Sr2 +和 Ba2 +的检出限和线性范围 .方法用于雪样分析 ,结果良好
The determination of alkali metal and alkaline earth metal ions by non-suppressed ion chromatography, the determination of alkali metal ions with tartaric acid as mobile phase, and the determination of alkaline earth metal ions with tartaric acid-ethylenediamine as mobile phase. , The retention value decreased as the concentration of eluent increased.The detection limits and linear ranges of L i +, Na +, NH + 4, K + and Rb + were determined by using 6.0 mmol / L tartaric acid as the mobile phase, and 4.0 mmol The detection limit and linear range of Mg2 +, Ca2 +, Sr2 + and Ba2 + were determined by using 2 mmol / L tartaric acid -2.0 mmol / L ethylenediamine as mobile phase.Methods The method was applied to the analysis of snow samples with good results