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. 2023 Nov 23;4(4):102748. doi: 10.1016/j.xpro.2023.102748

E1 buffer

Reagent Final concentration Amount
100% Trifluoroacetic acid (TFA) 0.2% 8 μL
ACN (LCMS grade) 60% 600 μL
water (LCMS grade) N/A 392 μL
Total 1 mL