Electrocatalysis Property of DNA-Hydroxyapatite Modified Electrode on Chloramphenicol

Abstract:

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An electroanalysis method of determining Chloramphenicol (CAP) based on the eletrocalysis property of DNA-hydroxyapatite modified electrode (dsDNA/HAp/GCE) was setted up. In KH2PO4-Na2HPO4 buffer solution with pH 6.0 cotaining 0.1 mol·L-1 KCl, the peak current was proportional to the concentration of CAP in the range of 2.80 × 10-7 to 3.60 × 10-6 mol·L-1, with a detection limit of 1.35 × 10-7 mol·L-1. The linear regress equation was ip (μA) = 5.865 + 0.4784 c (µmol·L-1), and the linear correlation coffcient was 0.9942. The method has been successfully applied to the quantitative analysis of CAP in real Chloramphenicol eye drops samples, which totally meet the demand of microanalysis. The relative standard deviation samples analysis results was 1ess than 3%.

Info:

Periodical:

Advanced Materials Research (Volumes 306-307)

Edited by:

Shiquan Liu and Min Zuo

Pages:

323-326

DOI:

10.4028/www.scientific.net/AMR.306-307.323

Citation:

N. Zhang et al., "Electrocatalysis Property of DNA-Hydroxyapatite Modified Electrode on Chloramphenicol", Advanced Materials Research, Vols. 306-307, pp. 323-326, 2011

Online since:

August 2011

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Price:

$35.00

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