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Journal Articles Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-...] Year : 2021

Raman spectroscopy for the qualitative and quantitative analysis of solid dosage forms of Sitagliptin

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Abstract

To demonstrate the potential of Raman spectroscopy for the qualitative and quantitative analysis of solid dosage pharmacological formulations, different concentrations of Sitagliptin, an Active Pharmaceutical Ingredient (API) currently prescribed as an anti-diabetic drug, are characterised. Increase of the API concentrations induces changes in the Raman spectral features specifically associated with the drug and excipients. Principal Component Analysis (PCA) and Partial Least Squares Regression (PLSR), were used for the qualitative and quantitative analysis of the spectral responses. A PLSR model is constructed which enables the prediction of different concentrations of drug in the complex excipient matrices. During the development of the prediction model, the Root Mean Square Error of Cross Validation (RMSECV) was found to be 0.36 mg and the variability explained by the model, according to the (R2) value, was found to be 0.99. Moreover, the concentration of the API in the unknown sample was determined. This concentration was predicted to be 64.28/180 mg (w/w), compared to the 65/180 mg (w/w). These findings demonstrate Raman spectroscopy coupled to PLSR analysis to be a reliable tool to verify Sitagliptin contents in the pharmaceutical samples based on calibration models prepared under laboratory conditions.
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Dates and versions

hal-02955978 , version 1 (02-10-2020)

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Muhammad Abu Bakkar, Haq Nawaz, Muhammad Irfan Majeed, Ammara Naseem, Allah Ditta, et al.. Raman spectroscopy for the qualitative and quantitative analysis of solid dosage forms of Sitagliptin. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy [1994-..], 2021, 245, pp.118900. ⟨10.1016/j.saa.2020.118900⟩. ⟨hal-02955978⟩

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