November 2012

About Authors:
Jatin  Patel^*
Seth G.L. Bihani S.D. College of Technical Education,
Institute of Pharmaceutical Sciences and Drug Research,
Sri Ganganagar, Rajasthan, INDIA
*Patelj313@yahoo.com

ABSTRACT:
Thermogravimetry is a branch of physical chemistry, materials research, and thermal analysis. It is based on continuous recording of mass changes of a sample of material, as a function of a combination of temperature with time, and additionally of pressure and gas composition.

It includes different types of Thermogravimetric analysis. In this article types, Instrumentation, Procedure, Application are priscribed.

Pt. Ravishankar Shukla University is Chhattisgarh's largest and oldest institution of higher education, founded in 1964, and named after the first chief minister of erstwhile Madhya Pradesh. The University has a sprawling campus in the western part of the capital of Chhattisgarh, Raipur. The campus of University is spread in 207 acres of land. There are Twenty-Nine teaching departments in the University. Out of which six departments buildings have been constructed recently.

Since inception, Siksha 'O’ Anusandban Deemed University has been imparting quality education to its students through various constituent institutes with an objective to promote professional education, training, research & development in diverse fields.

The National Centre for Cell Science (NCCS) took birth as National Tissue Culture Facility in March 11, 1986 with a mandate of basic research, teaching & training, and as a national repository for cell lines/hybridomas etc. The centre is located in the midst of academically enriched environment of University of Pune campus, Pune.

About Authors:
V.DEEPTHI *, POORNIMA.Y, DR.G.DEVALA RAO, T.SANDEEP REDDY
Department of Pharmaceutical Analysis,
K.V.S.R.Siddharthacollege of pharmaceutical sciences,
Vijayawada-520010, India.
*deepthi759@gmail.com

ABSTRACT
A novel stability-indicating RP-HPLC method has been develop and validated for quantitative analysis of Sitagliptin in the bulk drug and in its pharmaceutical dosage forms using Hypersil–BDS- C18 column (250x4.6mmi.d, 5µ particle size) with 10mM Phosphate buffer (PH-3.5): ACN 60:40%v/v as isocratic mobile phase enabled separation of the drug from its degradation products. UV detection was performed at 260 nm. The method was validated for linearity, accuracy (recovery), precision, sensitivity, ruggedness and robustness. The linearity of the method was excellent over the range 10–60μg/ml (correlation coefficient 0.999). The limits of detection and quantification were 0.21 and 0.640μg/ml, respectively. Recovery of Sitagliptinfrom the pharmaceutical dosage form ranged from 99.99 to 100.05%.

Sitagliptin was subjected to stress conditions (Hydrolysis (acid, base), oxidation,thermal and photo degradation) and the stressed samples were analysed by use of the method. Degradation was observed in acid, base, and 30% H2O2. The drug was stable under the other stress conditions investigated. The degradation products were well resolved from main peak. The forced degradation studies prove the stability indicating power of the method.