SCX Solvent B
5 mm potassium dihydrogen phosphate
30% acetonitrile (ACN)
350 mm potassium chloride
Combine the reagents listed above in high-purity, deionized H2O (i.e., Milli-Q). Acidify with trifluoroacetic acid (TFA) to pH 2.7. Store up to 4 wk at room temperature.
