The Validation and Development of Analytical Technique for the Fast and Economical Evaluation of Amoxicillin in Solid Dosage form Through UV/Visible Spectroscopy

  • Muhammad Iqbal Department of Chemistry, University of Gujrat, Hafiz Hayat Campus, Gujrat 50700, Pakistan.
  • Syed Saeed ul Hassan Imran Idrees College of Pharmacy, Sialkot, Pakistan.
  • Muhammad Abbas Islam College of Pharmacy, Sialkot
  • Hammad Ahmad Department of Pharmacology, Sialkot Medical College, Pakistan.
Keywords: UV/Vis Spectroscopy, validation, amoxicillin trihydrate, Pharmaceutical, formulations.


Objective: The key objective of the study is to explore the sensitive, rapid, simple, accurate and economic UV/Vis spectrophotometric method to determine the amount of Amoxicillin trihydrate (AMTR) in bulk pharmaceuticals and in various formulations including dry powder (syrup), tablets and capsules by employing Copper sulphate buffer solution.

Methodology: The current spectroscopic analysis performed with 12.5 μg/ml concentration of AMTR at 320 nm follows the Beer’s Lambert Law. The linearity range (10-15µg/ml) and regression data presented a significant correlation coefficient (r2 =0.999). The appropriate level of accuracy, precision, linearity, and mean percentage recovery of AMTR were found adequate relating to the % age error and standard deviations.

Results: Amoxicillin trihydrate and its known strengths were scanned and analyzed by our validated method such as; 10.0 µg/ml Amoxicillin (80%), 11.25 µg/ml Amoxicillin (90%), 12.5 µg/ml Amoxicillin (100%), 13.75 µg/ml Amoxicillin (110%) and 15.0 µg/ml Amoxicillin (120%).

Conclusions: As the recommended protocol of amoxicillin determination (spectrophotometry) is accurate, precise and statistically evaluated, therefore it could readily be employed for qualitative purposes of either for the raw material and pharmaceutical preparations.