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[求助] 离子色谱中乙酸在阳离子系统中出峰

各位大侠,本人在用离子色谱做阳离子时,溶液用的50%冰乙酸水溶液作为溶剂,采用CS16的柱子,20mmol  MSA时,冰乙酸出现了一个超级大的吸收,想了解一下,这种情况是因为冰乙酸能在阳离子系统中点解出正离子么?要是这样子的话应该怎么点解?还是什么情况?谢谢大家指教。
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