Electrochemical Approach for Determination of Tertahydrozoline HCl Using Gold nanoparticles Electrode

Authors

1 Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Tanta, El Geish St., Tanta, El gharbeya, Egypt

2 National Organization for Drug Control and Research (NODCAR), 6 Abu Hazem Street, Pyramids Ave, P.O. 29, Cairo, Egypt

Abstract

The electrochemical behavior of tetrahydrozoline (THZ) was explored by cyclic voltammetry and differential pulse voltammetry. A well-defined peak at 915 mV using gold nanomodified electrode (AuNPts/CP) in presence of sodium dodecyl sulphate (SDS) was detected. Different buffers, pH and scan rates on oxidation peak current were studied. Linear calibration curve was achieved in the range of 1.99×10−5 to 7.79×10-5 M with a limit of detection (LOD) 5.54×10-6 M and limit of quantification (LOQ) 1.69×10−5 M, respectively.
The suggested method was successfully utilized to the eye drops dosage form and urine sample with percentage recovery, 98.86%±0.77, and 101.13±0.62, respectively.

Keywords


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