with modifications. Equal amounts of FW and phosphate buffer pH 6 (5 mL:5 mL) were applied to a 100 mg/3 mL of C18-E cartridges, which were conditioned with 300 lL of 5% formic acid and equilibrated with: 300 lL of 5% formic acid in methanol.
with modifications.Equal amounts of FW and phosphate buffer pH 6 (5 mL:5 mL) wereapplied to a 100 mg/3 mL of C18-E cartridges, which were conditionedwith 300 lL of 5% formic acid and equilibrated with:300 lL of 5% formic acid in methanol.