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  • Title: Chromatographic methods for simultaneous determination of diiodohydroxyquinoline and metronidazole in their binary mixture.
    Author: Ali NW, Gamal M, Abdelkawy M.
    Journal: Pak J Pharm Sci; 2013 Sep; 26(5):865-71. PubMed ID: 24035940.
    Abstract:
    Two chromatographic methods were developed for analysis ofdiiodohydroxyquinoline (DIHQ) and metronidazole (MTN). In the first method, diiodohydroxyquinoline and metronidazole were separated on TLC silica gel 60F254 plate using chloroform: acetone: glacial acetic acid (7.5: 2.5: 0.1, by volume) as mobile phase. The obtained bands were then scanned at 254 nm. The second method is a RP-HPLC method in which diiodohydroxyquinoline and metronidazole were separated on a reversed-phase C18 column using water : methanol (60 :40, V/V, PH=3.6 )as mobile phase at a flow rate of 0.7 mL.min-1 and UV detection at 220 nm. The mentioned methods were successfully used for determination of diiodohydroxyquinoline and metronidazole in pure form and in their pharmaceutical formulation.
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