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Analytical quality by design approach in RP-HPLC method development for the assay of etofenamate in dosage forms

Author(s): R Peraman1, K Bhadraya2, Y Padmanabha reddy3, C Surayaprakash reddy3, T Lokesh3
1College of Pharmacy, Gulf Medical University, Ajman, UAE 2Swaroop Tech Services Private Limited, Hyderabad-500 062, India 3Analytical Research Laboratory, Raghavendra Institute of Pharmaceutical Education and Research, Anantapur-515 721, India

Correspondence Address:
R Peraman College of Pharmacy, Gulf Medical University, Ajman UAE E-mail: [email protected]

By considering the current regulatory requirement for an analytical method development, a reversed phase high performance liquid chromatographic method for routine analysis of etofenamate in dosage form has been optimized using analytical quality by design approach. Unlike routine approach, the present study was initiated with understanding of quality target product profile, analytical target profile and risk assessment for method variables that affect the method response. A liquid chromatography system equipped with a C18 column (250×4.6 mm, 5 μ), a binary pump and photodiode array detector were used in this work. The experiments were conducted based on plan by central composite design, which could save time, reagents and other resources. Sigma Tech software was used to plan and analyses the experimental observations and obtain quadratic process model. The process model was used for predictive solution for retention time. The predicted data from contour diagram for retention time were verified actually and it satisfied with actual experimental data. The optimized method was achieved at 1.2 ml/min flow rate of using mobile phase composition of methanol and 0.2% triethylamine in water at 85:15, % v/v, pH adjusted to 6.5. The method was validated and verified for targeted method performances, robustness and system suitability during method transfer.

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