Hello,

I´m working on the Ion chromatography in anion mode detecting Lithium salts in product. In time I´m observing that the peak height of analyte is continuously increasing even though the sample % concentration is still the same. Can anyone help me and explain why is this happening?

Example of peak heights vs. concentration of one Li salt at different measurements in one week.

23 - 12.00 %

24.5 - 12.00 %

25 - 12.00 %

26.3 - 12.00 %

It used to be the same height for the same concentrations but past few days we are observing this phenomena.

Thank you for your help.

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