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A validated chiral CE method for Frovatriptan, using cyclodextrin as chiral selector.

Muzaffar Khan1, Balaji Viswanathan, D Sreenivas Rao

  • 1Department of Analytical Research, Dr. Reddy's Laboratories Ltd., Discovery Research, Bollaram Road, Miyapur, Hyderabad 500 050, Andhra Pradesh, India. muzaffark@drreddys.com

Journal of Pharmaceutical and Biomedical Analysis
|May 5, 2006
PubMed
Summary
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A new capillary electrophoresis method using sulfobutyl ether beta cyclodextrin (SB-beta-CD) effectively determines the chiral purity of Frovatriptan. This validated technique offers high specificity and accuracy for pharmaceutical analysis.

Area of Science:

  • Analytical Chemistry
  • Pharmaceutical Analysis

Background:

  • Chiral purity is critical for drug efficacy and safety.
  • Frovatriptan, a medication, requires precise chiral analysis.
  • Existing methods may lack specificity or efficiency for chiral evaluation.

Purpose of the Study:

  • To develop and validate a capillary zone electrophoresis (CZE) method for chiral purity assessment of Frovatriptan.
  • To utilize sulfobutyl ether beta cyclodextrin (SB-beta-CD) as an effective chiral selector in CZE.

Main Methods:

  • Capillary zone electrophoresis (CZE) with a cyclodextrin-modified capillary.
  • Systematic optimization of electrolyte pH, chiral selector concentration, and organic modifier.
  • Validation of the method for specificity, precision, linearity, accuracy, and stability.

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Main Results:

  • The developed CZE method demonstrated high specificity, accuracy, and reproducibility.
  • Optimized parameters included electrolyte pH, SB-beta-CD concentration, and organic modifier.
  • The method achieved limits of detection (LOD) of 1.0 µg/mL and quantification (LOQ) of 5.0 µg/mL for each isomer.

Conclusions:

  • A robust and validated CZE method using SB-beta-CD is suitable for determining Frovatriptan's chiral purity.
  • The method provides a reliable tool for quality control of Frovatriptan batches.
  • This analytical approach contributes to ensuring the safety and efficacy of pharmaceutical products.