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Additive question

Posted: Thu Oct 10, 2013 9:11 pm
by shadow
I need to work with ESI + and my mobile phase needs to be pH2, besides TFA what else can I use? Thanks for any reply

Re: Additive question

Posted: Fri Oct 11, 2013 2:25 pm
by tom jupille
Do you really need to go all the way down to 2? 1% formic acid will be around 2. 0.1% formic acid is around 2.3 - 2.4