4.7 Article

Chemo-metric assisted UV-spectrophotometric methods for simultaneous estimation of Darunavir ethanolate and Cobicistat in binary mixture and their tablet formulation

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2020.119383

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Chemometric assisted UV-spectrophometric methods; Darunavir ethanolate; Cobicistat; Partial least square method; Classical least square method

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A combination of Darunavir ethanolate (DRV) and Cobicistat (CBS) has been developed for the treatment of HIV infections, with two UV-spectrophotometric methods successfully developed for simultaneous estimation. These methods exhibited good sensitivity and low error in laboratory mixtures and tablet dosage forms.
Darunavir ethanolate (DRV) and Cobicistat (CBS) is a combination of antiretroviral drugs used for the treatment of human immunodeficiency virus (HIV) infections. Two Chemo-metric assisted UV-spectrophotometric methods were developed for simultaneous estimation of DRV and CBS in tablet dosage form, namely; partial least square (PLS) and Classical least square method (CLS). The proposed methods were successfully applied for simultaneous determination of DRV and CBS in a laboratory mixture and their tablet formulation to achieve maximum sensitivity and lowest error. The applied methods were validated as per ICH guidelines and found to be linear in the concentration range of 5-30 mu g/mL for DRV and 5-30 mu g/mL for CBS. The developed methods were statistically comared with reported UPLC method where no significant difference was found relating to both accuracy and precision. Thus, the proposed methods can be effectively utilized for the routine quality control assessment of these drugs in commercial tablet dosage form. (C) 2020 Elsevier B.V. All rights reserved.

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