Fig. 6From: AQbD TLC-densitometric method approach along with green fingerprint and whiteness assessment for quantifying two combined antihypertensive agents and their impuritiesThree and two dimensional (3D) and (2D) TLC-densitogram of mixture of captopril and hydrochlorothiazide and their impurities (chlorothiazide, salamide and captopril disulphide) using ethyl acetate: glacial acetic acid (60:6, v/v) as a developing system and scanning wavelength at 215 nmBack to article page