[논문]Stability-indicating HPTLC method for simultaneous determination of nateglinide and metformin hydrochloride in pharmaceutical dosage form

Thomas, A.B.; Patil, S.D.; Nanda, R.K.; Kothapalli, L.P.; Bhosle, S.S.; Deshpande, A.D.

doi:10.1016/j.jsps.2011.06.005

Stability-indicating HPTLC method for simultaneous determination of nateglinide and metformin hydrochloride in pharmaceutical dosage form 원문보기

Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society, v.19 no.4, 2011년, pp.221 - 231

Thomas, A.B. (Department of Pharmaceutical Chemistry, Dr. D.Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune 18, Maharashtra, India) , Patil, S.D. (nstitute of Pharmaceutical Sciences and Research, Pimpri, Pune 18, Maharashtra, India) , Nanda, R.K. , Kothapalli, L.P. , Bhosle, S.S. , Deshpande, A.D.

Abstract ▼ AI-Helper

A stability indicating high performance thin layer chromatography (HPTLC) method was developed and validated for determination of two anti-diabetic drugs, nateglinide and metformin hydrochloride in co-formulations. Study was performed on pre-coated silica gel HPTLC plates using chloroform:ethyl acetate:acetic acid (4:6:0.1 v/v/v) as the mobile phase. A TLC scanner set at 216nm was used for direct evaluation of the chromatograms in the reflectance/absorbance mode. Method was validated according to ICH guidelines. The correlation coefficients of calibration curves were found to be 0.996 and 0.995 in the concentration range of 200-2400 and 500-3000ngband-1 for nateglinide and metformin, respectively. The method had an accuracy of 99.72% for nateglinide and 100.08% for metformin hydrochloride. The method had the potential to determine these drugs simultaneously from dosage forms without any interference of the tablets excipients. Nateglinide and metformin hydrochloride were also subjected to acid, base, oxidation, wet, heat and photo-degradation studies. The degradation products obtained were well resolved from the pure drugs with significantly different Rf values. As the method could effectively separate the drugs from its degradation products, it can be used for stability-indicating analysis.

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Stability-indicating HPTLC method for simultaneous determination of nateglinide and metformin hydrochloride in pharmaceutical dosage form 원문보기

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