I read in Mass spec literature that buffer combinations are attempted. Are they only for gradient elution. Does this need mass spec to ionise the buffered solvent effectively. Will this cause the buffer to precipitate.
how does one make up such a buffer solution so simply?. Should I add formic acid to the ammonium acetate + ACN mixture already or add formic acid to 10ml of filtered ammonium acetate?.
Reverse phase is highly organic mobile phase at 90-97% ACN.