Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 3, Pages 411-415Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2007.12.028
Keywords
calcium dobesilate; carbon-iron nanoparticles; electrochemical sensor
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A carbon-iron nanoparticle modified glassy carbon electrode (CIN-GCE) has been developed for the determination of calcium dobesilate (CD) in pharmaceutical formulations. The CINs were characterized by Transmission electron microscopy and X-ray diffraction. It was found that the CIN has strong electrocatalytic effect for CD and leads to a greatly improved anodic detection of CD including higher sensitivity and better reproducibility. A detection limit of 2.0 x 10(-7) M (S/N = 3) was obtained. The proposed CIN-GCE was applied to detect CD in pharmaceutical formulations with satisfactory results. The proposed CIN electrochemical sensing platform holds great promise for simple, rapid and accurate detection of CD in pharmaceutical formulations. (C) 2008 Elsevier B.V. All rights reserved.
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