Development and validation of liquidchromatographic method for quantitative determination of Loxoprofen in mobilephase and in human plasma

Pak J Pharm Sci. 2018 Nov;31(6 (Supplementary):2629-2633.

Abstract

A Simple, sensitive and accurate high-performance liquid chromatographic (HPLC) method for effective and specific analysis of Loxoprofen (LXP) in the mobilephase and human plasma was developed. Effective chromatographic separation was attained on a Mediterranean Sea C18 column (250×4.6mm, 5um) with mobilephase containing acetonitrile and 0.01 M NaH2PO4 buffer (55:45) by adjusting pH 6.5 with sodium dihydrogen phosphate buffer at a flow rate of 1ml/min. Calibration ranges from 0.1ppm to 10 ppm with a coefficient of relation value (R2=0.999) by using a linear regression method and lower limit of quantification was 0.1ppm. The current method showed inter-day and intra-day accuracy and precision within the range of ±10%. % RSD was found to be less than 5 %. Analytical recovery was more than 90% which confirmed the reliability of current method. The proposed method was found appropriate for assessment of LXP in pharmacokinetic and bioequivalence study.

MeSH terms

  • Anti-Inflammatory Agents, Non-Steroidal / analysis*
  • Anti-Inflammatory Agents, Non-Steroidal / blood*
  • Chemistry, Pharmaceutical / standards*
  • Chemistry, Pharmaceutical / trends
  • Chromatography, High Pressure Liquid / standards
  • Chromatography, High Pressure Liquid / trends
  • Humans
  • Phenylpropionates / analysis*
  • Phenylpropionates / blood*
  • Reproducibility of Results

Substances

  • Anti-Inflammatory Agents, Non-Steroidal
  • Phenylpropionates
  • loxoprofen