OBETICHOLIC ACID: AN INSIGHT INTO A QUANTITATIVE DETERMINATION AND METHODOLOGICAL VALIDATION THROUGH NUCLEAR MAGNETIC RESONANCE

Authors

  • RAKESH SAHU Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Knowledge Park-II, Greater Noida 201306, India https://orcid.org/0000-0002-2500-9277
  • RAKHI MISHRA Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Knowledge Park-II, Greater Noida 201306, India
  • CHANDANA MAJEE Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Knowledge Park-II, Greater Noida 201306, India
  • AJAY KUMAR Department of Pharmaceutical Chemistry, Noida Institute of Engineering and Technology (Pharmacy Institute), Knowledge Park-II, Greater Noida 201306, India
  • RUPA MAZUMDER Department of Pharmaceutics, Noida Institute of Engineering and Technology (Pharmacy Institute), Knowledge Park-II, Greater Noida 201306, India

DOI:

https://doi.org/10.22159/ijap.2020v12i6.38944

Keywords:

NMR, 1H, Obeticholic acid, Tetramethylbenzene, Quantitative NMR, Method validation

Abstract

Objective: The research work unveils the use of nuclear magnetic resonance (NMR) technique for quantitative determination and method validation of obeticholic acid. As standard expository methodology for more up to date medications or formulations may not be available in pharmacopeias, hence it is fundamental need to create novel analytical procedures which should be precise and accurate.

Methods: Proton (1H) and carbon (13C) NMR analysis were initially performed to confirm the preliminary authenticity of obeticholic acid API. Method validation was accomplished on the basis of standard guidelines for the parameters, in which tetramethylbenzene as an internal standard and deuterated dimethyl sulfoxide as a diluent were used to assess the obeticholic acid.

Results: For the quantification of the drug, the proton nuclear magnetic resonance signals at 0.602 ppm and 6.86 ppm corresponding to the analyte proton of drug and internal standard respectively were used. The curve equation calculated from the regression method, the relative-standard-deviation and correlation-coefficient were found to be 0.743% and 0.9989 respectively, indicating good linearity. Consequently, the quantitative assay of the drug was found to be 99.91% in linearity with limit of detection and quantification values as 0.0773 mg and 0.2344 mg respectively, making successful the study of method validation for obeticholic acid.

Conclusion: The advantage of the method was that no reference standard of analyte drug was required for quantification and method validation. The method is non-destructive and can be applied for quantification of drug in commercial pharmaceutical formulation products.

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Published

07-11-2020

How to Cite

SAHU, R., MISHRA, R., MAJEE, C., KUMAR, A., & MAZUMDER, R. (2020). OBETICHOLIC ACID: AN INSIGHT INTO A QUANTITATIVE DETERMINATION AND METHODOLOGICAL VALIDATION THROUGH NUCLEAR MAGNETIC RESONANCE. International Journal of Applied Pharmaceutics, 12(6), 179–190. https://doi.org/10.22159/ijap.2020v12i6.38944

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