https://www.phenomenex.com/Application/Detail/14666

This is simple HPLC application having isocratic elution and UV detector (220 nm)

It would be an organic acid column like Aminex-87H. Check the Waters, Agilent, Phenomenex, and Restek websites.

Ion chromatography should be a good bet. Here is an example:

https://appslab.thermofisher.com/App/1053/organic-acids-fruit-juices-wines

https://www.phenomenex.com/Application/Detail/14666

This is simple HPLC application having isocratic elution and UV detector (220 nm)

an alternative to the excellent response given by Dr. Shaikh is indirect ion chromatography. See the Hamilton chromatography Web site for an example.

https://www.hamiltoncompany.com/laboratory-products/hplc-columns/anion-exchange/prp-x100

Think also about ion-exclusion chromatography.

regards,

GB

I am sure Formic Acid would elute under these conditions. See attached;

https://appslab.thermofisher.com/App/1653/fast-analysis-organic-acids-orange-juice-on-a-thermo-scientific-acclaim-organic-acid-oa-column

Interesting question

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