MULTIVARIATE CALIBRATION TECHNIQUE AIDED UV SPECTROPHOTOMETRIC METHOD FOR THE ESTIMATION OF FEBUXOSTAT IN PHARMACEUTICALS DOSAGE FORM Authors: Mohamed N , KAVITHA J*, MANIKANDAN K
ABSTRACT
The current study focuses on creating a unique methodology and testing it for the quantification
of Febuxostat (FBX) in formulations and bulk. The primary objective of this research work was to
develop a facile, precise, responsive, and validated UV spectrophotometric assay for Febuxostat
utilizing the multivariate regression approach. This multivariate calibration technique relied upon
equations generated from a linear regression model based on the mathematical relationship
between absorbance and concentration at five equidistant wavelengths. Febuxostat exhibited a
maximum absorption at a wavelength of 314 nm. The findings underwent statistical analysis to
determine their significance. A linear plot exhibiting a regression coefficient of 0.999 was obtained
for concentrations ranging from 4 to 6 ?g mL-1. The assay reported to be 99% to 101.13% w/w.
Keywords: Febuxostat, Anti- gout agent, Multivariate calibration, UV spectrophotometry, Assay,
Pharmaceutical formulations, ICH guidelines Publication date: 01/12/2025 https://ijbpas.com/pdf/2025/December/MS_IJBPAS_2025_9600.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2025/14.12.9600