Title:A Glassy Carbon Electrode for the Determination of Linagliptin, an Antidiabetic Drug in Pure Form, Tablets and Some Biological Fluids by Adsorptive Stripping Voltammetry
Volume: 27
Issue: 20
Author(s): Ahmed A. Gahlan, Ahmed M. Haredy*, Sayed M. Derayea, Mahmoud A. Omar and Gamal A. Saleh
Affiliation:
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia,Egypt
Keywords:
Linagliptin, glassy carbon electrode, Square wave voltammetry, Pharmaceutical, pure form, biological fluids.
Abstract:
Aim: The present work provides a fast, simple, accurate, and inexpensive analytical method for the
determination of Linagliptin (anti-diabetic drug).
Methods: The analysis was performed using a square wave adsorptive anodic stripping voltammetric technique
(SWAASV) and glassy carbon electrode (GCE) as a working electrode. The experimental and instrumental parameters
were studied and discussed to ensure the validity of the method.
Results: The method has a very good linearity (R2 = 0.9984), wide concentration range (0.189 - 2.268 μg mL-1),
low detection limit of 0.052 μg mL-1 and low quantitation limit of 0.172 μg mL-1.
Conclusion: Linagliptin was identified successfully using the proposed method in pharmaceutical formulations,
spiked human urine and plasma with 99.67, 91.96, and 92.78% recovery, respectively, and the results obtained
were compared with other reported methods.