S421, 10 µg/ml, Ethyl acetate, 10ml

BSTFA + 1 % TMCS, 5ml

Vardenafil hydrochloride trihydrate, 100mg

Whole Oil Separation Control Set (S-4015 - S-4017 + S-4012) Neat mixtures (0.25mL) of the Control mixtures 1-3, 1mL solution of the Control mixture 4 in isooctane solution