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中文摘要：
探讨了用流动相离子色谱法测定杂多酸中Cl^-与PO4^3-的分析条件。通过在淋洗液中加入两性离子3-（N-吗啉）-1-丙磺酸（3．（N-morpholino）propanesulfnnic acid，MOPS），调节流动相pH值，找到一种pH6．98的流动相，同时优化离子对试剂的配比，并加入无机添加剂和有机改进剂，能有效的抑制杂多酸的分解，较精确地测定其中所含阴离子。
英文摘要：
Determination of chloride and phosphate in heteropoly acid （HPA） samples with 3-（ N-morpholino） propanesulfonic acid （ MOPS ） , a zwitterions, as an ingredient of mobile phase by mobile phase ion chromatography was studied. Certain amounts of MOPS was added to adjust the pH of the eluent so as to restrain the decomposition of HPA, which is a strong-alkaline-unstable compound. The optimized ion pair reagents and inorganic additive were also added to obtain good peak shapes. The chloride and phosphate in HPA samples were accurately determined with eluent of pH 6.98.
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