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Reference type: Journal
Authors: He CX, Yang J
Article Title: Preparation of sunset yellow sensor based on molecularly imprinting.
Publication date: 2012
Journal: Journal of Liaoning Normal University (Natural Science Edition)
Volume: 35
Issue: (1)
Page numbers: 78-82.
Alternative URL: http://en.cnki.com.cn/Article_en/CJFDTotal-LNSZ201201017.htm

Abstract: A molecular imprinted film of sunset yellow with specific identification hole has been developed by molecularly imprinting technology. The sensitive film was prepared by cyclic voltammetry method on graphite electrode using o-aminophenol as functional monomer, sunset yellow as template which can be removed by electrochemical method in 0.5 mol/L H2SO4 solution. The polymer films were investigated by UV-vis absorption spectrometry and electrochemical method. The results showed that the s had a sensitive response,a specific recognition and high selectivity towards the target sunset yellow. The linear relation between peak current of differential pulse voltammetry and concentration of sunset yellow were good in the range from 1.00 x 10-6 to 1.00 x 10-4 mol/L with a detection limit of 2.00 x 10-7 mol/L at potential of -0.010 V. The imprinted electrode has been applied to determinate sunset yellow in drink samples with recovery ranging from 95% to 108%. The molecular imprinted film can be exploited for the separative analysis of sunset yellow.
Template and target information: sunset yellow
Author keywords: sunset yellow, O-Aminophenol, Molecular imprinted, Modified Electrode

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