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Reference type: Journal
Authors: Ma YF, Qu XJ, Yin HS, Du HX
Article Title: Electrochemical synthesis of L-tryotophan molecular imprinting film sensor and its application.
Publication date: 2009
Journal: Journal of Shandong Agricultural University (Natural Science)
Volume: 40
Issue: (2)
Page numbers: 254-258.
Alternative URL: http://wenku.baidu.com/view/a89f8863783e0912a2162ab8.html

Abstract: The L-tryptophan molecular imprinting film sensor,which select 2-mercaptobenzimidazole and L-tryptophan as monomer and template molecule,respectively,was prepared directly on the surface of gold electrode by cyclic voltammetry method.Because of L-tryptophan has no electrical activity,the potassium ferricyanide was used as a molecular probe to detect L-tryptophan by constant potential amperometry.The response achieve stable in 100 s.The sensor exhibited good selectivity and sensitivity to L-tryptophan.The linear range for the determination of L-tryptophan is from 3.1010-5 to 8.8310-4 mol/L,the binding constant of 2-mercaptobenzimidazole and L-tryptophan were detected,and the best detection condition of this sensor were discussed.
Template and target information: L-tryptophan
Author keywords: electropolymerization, molecular imprinting, L-tryptophan, 2-mercaptobenzimidazole

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