HPTLC-densitometry method development and validation for simultaneous determination of abacavir, lamivudine and zidovudine in combined dosage form

Journal of the Iranian Chemical Research

مقاله 5، دوره 4، شماره 4، اسفند 2011، صفحه 251-262   

نویسندگان

Adnan A. Bekhit^* ؛ Adissu Alemayehu؛ Abdel-Maaboud I. Mohamed؛ Ariaya Hymete

Department of Pharmaceutical Chemistry, School of Pharmacy, Addis Ababa University, Addis Ababa1176 Ethiopia.

چکیده

A simple, accurate and precise HPTLC- densitometry method for the simultaneous
determination of abacavir, lamivudine and zidovudine in pharmaceutical tablet has been
developed. Separation of tablet components was performed on aluminum backed HPTLC plates
(silica gel 60 F254 20×20 cm with 0.2 mm thickness, Camag, Muttenz, Switzerland ) using
methanol : chloroform : acetonitrile (4 : 8 : 3 v/v). Good sensitivity for all analytes was observed
with UV detection at 275 nm. The method was validated for linearity, accuracy, precision,
specificity and robustness. The method allowed quantitation over the 200–1450 ng/band range
for the three components. Both linear and second order polynomial relationships were studied.
Second order polynomial fit was found to be more suitable and its residuals plot showed a much
better fitting than that of linear model, indicating good correlation and determinations (r =
0.99995, 0.9998 and 0.9998 and r2 = 0.9999, 0.9997 and 0.9996 for 3-TC, ABC and AZT,
respectively). The method has an accuracy of 99.35, 99.19 and 99.13 % for 3-TC, ABC and AZT
respectively. The method is robust and has the potential to determine these drug substances
simultaneously from the dosage forms.

کلیدواژه‌ها

HPTLC؛ Abacavir؛ Lamivudine؛ Zidovudine؛ Densitometry؛ Simultaneous؛ Determination

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