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Reference type: Journal
Authors: Shen Q, Cui LF, Zhao S, Li K
Article Title: Preparation and Application of Microcystins Sensor Based on Molecular Imprinting.
Publication date: 2012
Journal: Chinese Journal of Analytical Chemistry
Volume: 40
Issue: (3)
Page numbers: 442-446.
DOI: 10.3724/SP.J.1096.2012.10715
Alternative URL: http://210.14.121.5:8080/fxhx/EN/abstract/abstract76.htm

Abstract: A molecularly imprinted film sensor was prepared by cyclic voltammetry on a gold electrode surface using O-aminophenol as the monomer, microcystin (MC-LR) as a template, and then MC-LR was determined by amperometry. The optimum preparation conditions for the sensor were as follows: pH = 4.5, monomer/template = 1.4 x 108 : 1; elution time = 10 min. The characteristics of the sensor such as the linear relationship, service life, selectivity were investigated. Experimental results showed that the linear response of the sensor is 0.05-0.35 mg/L, the recovery of standard addition is 80% to 105% and the detection limit is 7.3 μg/L. In comparison with HPLC, when the confidence level was 99%, there is no systematic error. The sensor exhibited a good selectivity and sensitivity.
Template and target information: microcystin-LR, MC-LR
Author keywords: microcystins, molecular imprinting, Electricity polymerization, sensor


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