DEVELOPMENT AND VALIDATION OF A SIMPLE AND COST-EFFECTIVE UV SPECTROPHOTOMETRIC METHOD FOR QUANTIFYING LINEZOLID
DOI:
https://doi.org/10.22159/ijap.2024v16i3.50556Keywords:
Linezolid, UV spectrophotometric method, Validation, Absorption maxima, Analytical methodAbstract
Objective: This study focuses on the development and validation of a sensitive, simple, accurate, precise and cost-effective Ultraviolet-Visible (UV) spectrophotometric method for the quantification of Linezolid, a widely used antibiotic in pharmaceutical formulations.
Methods: The analysis utilized a solvent system comprising 80% water and 20% methanol (v/v). The absorbance of standard solutions was measured and a calibration curve was constructed. Various analytical performance parameters, including linearity, range, precision, accuracy, Limit of Detection (LOD), Limit of Quantification (LOQ) and ruggedness were determined following the International Conference on Harmonization (ICH) Q2 (R1) guidelines.
Results: The maximum absorption peak (λmax) of Linezolid was determined to be 251 nm in the selected medium. Beer-Lambert’s law was valid in the concentration range of 0.5–9 μg/ml, with a high correlation coefficient (R2) of 0.9955. The proposed method exhibited a recovery ranging from 99.08 to 100.37% with % Relative Standard Deviation (RSD) value consistently below 2%.
Conclusion: The study findings confirm the accuracy, precision and reproducibility of the developed method. Additionally, it is characterized by its simplicity, affordability, and time efficiency. Thus, this method can be effectively employed for the quantification of Linezolid in lipid nanoparticles.
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