Unveiling Impurities: A Comprehensive RP-HPLC Method for Accurate Atorvastatin Impurity Analysis in Pharmaceuticals...

Area of Science:

• Pharmaceutical Analysis
• Analytical Chemistry
• Medicinal Chemistry

Background:

• Accurate quantification of active pharmaceutical ingredients and impurities is vital for drug safety and efficacy.
• This study addresses the critical need for reliable analytical methods in pharmaceutical quality control.
• Focuses on the validation of a high-performance liquid chromatography (HPLC) method for atorvastatin and its impurities.

Purpose of the Study:

• To comprehensively validate an HPLC method for atorvastatin quantification.
• To assess specificity, response function, precision, trueness, and tolerance intervals.
• To demonstrate the method's stability-indicating capabilities across various concentrations and compounds.

Main Methods:

• Rigorous validation including specificity, response function, precision, trueness, and tolerance interval analysis.
• Induced degradation studies to evaluate atorvastatin stability under stress conditions.
• Investigation of synthesis and degradation pathways via proposed intramolecular esterification mechanism.

Main Results:

• The validated HPLC method demonstrated high precision, accuracy, and stability-indicating properties.
• The method successfully differentiates atorvastatin from its impurities.
• Results confirm the method's suitability for routine pharmaceutical quality control.

Conclusions:

• The validated HPLC method is a robust and reliable tool for atorvastatin analysis.
• This contributes significantly to pharmaceutical research and quality assurance.
• Ensures the safety and efficacy of atorvastatin-containing medications.