Informatics Publishing Limited

Nikam Pooja ¹, Baokar Shrikrishna ¹, Undare Santosh ², R. N. Patil ¹

Affiliations
1 Department of Pharmaceutical Analysis, Shivnagar Vidya Prasarak Mandal’s College of Pharmacy, Malegaon (Bk), Tal-Baramati, Dist-Pune, Maharashtra 413115, IN
2 PG Department of Chemistry, Marathwada Shikshan Prasarak Mandal’s Balbhim Arts, Science and Commerce College, Beed, Maharashtra 431112, IN

Abstract

Prazosin Hydrochloride (PRZ) is an antihypertensive agent which is one of the leading marketed drugs in the world. A rapid, specific and economic UV spectrophotometrically method has been developed using methanol as a solvent to determine the PRZ content in bulk and pharmaceutical dosage formulations. At a pre-determined Λ_max of 2 nm, it was proved linear in the range of 1 - 5 μg/mL, and exhibited good correlation coefficient (R²=0.999) and excellent mean recovery. This method was successfully applied to the determination of PRZ content in one marketed brand from India and the results were in good agreement with the label claim. The method was validated statistically and by recovery studies for linearity, precision, accuracy, ruggedness, robustness, LOD and LOQ. The obtained results proved that this method can be employed for the routine analysis of PRZ in bulks as well as in the commercial formulations.

Keywords

UV-Spectrophotometer, Prazosin, Antihypertensive Agent.

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Humera Pathan ¹, Shrikrishna Baokar ¹, Undare Santosh ², R. N. Patil ¹

Affiliations
1 Department of Pharmaceutical Analysis, Shivnagar Vidya Prasarak Mandal’s College of Pharmacy, Malegaon (Bk), Tal- Baramati, Dist- Pune, Maharashtra-413115, IN
2 PG Department of Chemistry, Marathwada Shikshan Prasarak Mandal’s Balbhim Arts, Science and Commerce College, Beed, Maharashtra-431112, IN

Abstract

Venlafaxine belongs to a group of Antidepressant with a novel chemical structure. In these studies describes a simple, accurate, precise and cost effective UV-visible spectrophotometric method for the estimation of Venlafaxine hydrochloride in bulk and pharmaceutical formulations. The method is based on the measurement of absorbance of Venlafaxine hydrochloride solution in 0.1N NaOH at 225 nm. The method obeys Beer's Lambert's law in the selected concentration range 5-25 μg/ml in selected solvent. The slope, intercept and correlation coefficient were also calculated. Results of percentage recovery study shows that the method was not affected by the presence of common excipients in tablets. The parameters like linearity, precision, accuracy were studied according to International Conference on Harmonization (ICH) guidelines. The developed method was validated in terms of accuracy, precision, linearity, limit of detection and limit of quantitation which proves suitability of proposed method for routine estimation of venlafaxine hydrochloride in bulk and pharmaceutical formulations.

Keywords

UV-Visible Spectrophotometer, Method Development, Venlafaxine Hydrochloride.

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Nipanikar Madhuri ¹, Shrikrishna Baokar ¹, Undare Santosh ², R. N. Patil ¹

Affiliations
1 Department of Pharmaceutical Analysis, Shivnagar Vidya Prasarak Mandal’s College of Pharmacy, Malegaon (Bk), Tal- Baramati, Dist- Pune, Maharashtra-413115, IN
2 PG Department of Chemistry, Marathwada Shikshan Prasarak Mandal’s Balbhim Arts, Science and Commerce College, Beed, Maharashtra- 431112, IN

Abstract

Glipizide (GPZ) is chemically 1cyclohexyl3 [[p[2(5methylpyrazinecarboxamido)ethyl]phenyl] sulfonyl]urea, used in the treatment of type II diabetes mellitus. The drug is commercially available as tablets for oral administration. In the present work three simple, economical, precise and accurate UV spectrophotometrically methods have been developed for the estimation of GPZ in bulk and pharmaceutical formulation. The present method has been developed in distil 0.1 N NaOH which makes it economic and reproducible. An absorption maximum was obtained at 227 nm. The method is validated using ICH Q2R1 guideline for various parameters like precision, accuracy, etc. Drug follows linearity in concentration range 1-10 μg/ml with correlation coefficient value (r2) 0.999. The accuracy study was performed by recovery checking at three different concentrations i.e., 80%, 100% and 120 %. The % recovery was found well in limit. The precision of the method was studied as an intra-day (% R.S.D. = 0.44 %) and for inter-day (% R.S.D. = 0.22 %) variations. The % R.S.D. value less than 2 indicate that the method is precise. The proposed method is a cost-effective qualitycontrol tool for routine analysis of GPZ in pharmaceutical dosage form.

Keywords

UV-spectrophotometer, Glipizide.

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