Journal of Pharmaceutical Analysis (Aug 2012)

Azeotropic mixture used for development and validation of Lornoxicam in bulk and its tablet dosage form by spectrophotometric method

  • Prajesh Prajapati,
  • Vipul Vaghela,
  • Deepak Rawtani,
  • Harshad Patel,
  • Jasmin Kubavat,
  • Dharmendra Baraiya

Journal volume & issue
Vol. 2, no. 4
pp. 306 – 309

Abstract

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A novel, safe, economic and sensitive method of spectrophotometric estimation has been developed using Azeoptropic mixture (water:methanol: 60:40, v/v) for the quantitative determination of Lornoxicam, a practically water-insoluble drug. Hence, Lornoxicam stock solution was prepared in Azeoptropic mixture. Lornoxicam showed maximum absorbance at 383 nm. Beer's law was obeyed in the concentration range 4–24 μg/mL with regression coefficient of 0.999. The method was validated in terms of linearity (R2=0.999), precision (CV for intra-day and inter-day was 0.28–0.68 and 0.12–0.92, respectively), accuracy (98.03–100.59% w/w) and specificity. This method is simple, precise, accurate, sensitive and reproducible and can be used for the routine quality control testing of the marketed formulations. Keywords: Analgesic, Chlortenoxicam, Lornoxicam, Oxicam, Spectrophotometric, Azeotropic mixture