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Phosphoric acid reactivity with IP reagent

Posted: Mon Feb 26, 2018 10:26 pm
by mike_s
Does anyone know if phosphoric acid can react with the ion pairing reagent Sodium 1-decanesulfonate? I am seeing several late-eluting system peaks that get bigger and more plentiful from one day to the next. 100% Milli-Q water injection, C18 column, Water/ACN are other components of mobile phase gradient. Any alternate ideas of what is happening or ways to prevent this would be appreciated. Thanks!

Re: Phosphoric acid reactivity with IP reagent

Posted: Mon Feb 26, 2018 11:40 pm
by tom jupille
My first guess would be microbial metabolic products.