Fig. 2From: A green TLC densitometric method for the simultaneous detection and quantification of naphazoline HCl, pheniramine maleate along with three official impuritiesTLC chromatogram of NPZ (30.0 µg band −1), PHN (90.0 µg band −1) and three of their official impurities as NPZ impurity B (10.0 µg band −1), PHN impurity A (40.0 µg band −1) and PHN impurity B (40.0 µg band −1) using a mobile phase of methanol: ethyl acetate: ammonia (2.0: 8.0: 1.0, by volume) and detection at 260.0 nmBack to article page