Future Journal of Pharmaceutical Sciences

Table 1 Column, mobile phase systems, and internal standards used for the optimization of the HPLC method

From: Novel approaches for determination of antiretroviral reverse transcriptase inhibitor agent in commercial dosage forms by using spectrofluorimetric, first derivative spectrophotometric, and HPLC methods

Column	Mobile phase*	Internal standard
Thermo Hypersil Phenyl 250 × 4.6 mm 5 μ	ACN:MeOH	Caffeine
	ACN:MeOH:Diethylamine	Hydrochlorothiazide
	ACN:0.5% Formic acid	Zanamivir
Waters Xterra RP8 5 μ 250 × 4.6 mm	ACN:MeOH	Oseltamivir
Waters Xterra RP8 5 μ 250 × 4.6 mm	ACN:0.5% Formic acid	Lopinavir
Wakosil-II 5 C18 AR, 4.6 × 250 mm	ACN:0.5% Formic acid	Ritonavir

*Mobile phase components were at different rates

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