Citric acid [3% wt]

20-Methyl-5 alpha(H)-pregnane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5737-19-9

Cyprosulfamide, 100µg/mL in Acetonitrile, 1ml

n-Butyraldehyde-PFBOA derivative, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no.