Journal
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
Volume 58, Issue -, Pages 510-520Publisher
ELSEVIER
DOI: 10.1016/j.msec.2015.08.071
Keywords
Nano; Clinoptilolite; Ascorbic acid; Acetaminophen; Voltammety
Categories
Ask authors/readers for more resources
A novel carbon paste electrode (CPE) modified with Fe(III)-exchanged clinoptilolite nano-particles (Fe(III)-NClino/CPE) was constructed and used for simultaneous voltammetric (CV, SqW and chronoamperometry) determination of ascorbic acid and acetaminophen. Raw and modified zeolites were characterized by X-ray diffraction (XRD) and transmission electron microscope (TEM). The square wave peak current was linearly increased in the concentration ranges of 1.0 x 10(-9)-1.0 x 10(-2) mol L-1 for ascorbic acid and 1.0 x 10(-10)-1.0x10(-2) mol L-1 for acetaminophen with detection limits of 1.8 x 10(-9) mol L-1 and 9.9 x 10(-10) mol L-1, respectively. The detection limits of 2.4 x 10(-10) mol L-1 and 2.5 x 10(-11) mol L-1 were also obtained for AA and AC in chronoamperometric measurements, respectively. The diffusion coefficients of 7.5 x 10(-5) cm(2) s(-1) and 2.4 x 10(-5) cm(2) s(-1) were respectively calculated for the oxidation of AC and AA by chronoamperometry. The proposed electrode exhibited high sensitivity and good stability, and would be valuable for the clinical assay of ascorbic acid and acetaminophen. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available