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Reference type: Journal
Authors: Yu JH, Zhang CC, Ge L, Dai P, Ge SG
Article Title: Quantification of Sorbic Acid Using the Molecularly Imprinted Chemiluminescence Method with Rhodanine Derivative.
Publication date: 2009
Journal: Analytical Sciences
Volume: 25
Issue: (11)
Page numbers: 1351-1356.
DOI: 10.2116/analsci.25.1351
Alternative URL: http://www.jstage.jst.go.jp/article/analsci/25/11/1351/_pdf

Abstract: A novel molecular imprinting-chemiluminescence (MI-CL) method for the determination of sorbic acid (SA) was established, taking the molecularly imprinted polymer (MIP) as recognition material and a novel rhodanine derivative as chemiluminescence reagent. The MIP was prepared by a self-assembly technique with SA as template molecule, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross-linker. It was found that 3-o-methoxyphenyl-5-(2'-sulfono phenylazo) rhodanine (2MORASP) significantly enhanced the luminescence intensity of the SA-potassium permanganate-hydrochloride acid system. The method was proved to be selective and sensitive. Under the optimized experimental conditions, the system exhibits an excellent linear relationship over the range of 3.0 x 10(-7) - 6.0 x 10(-4) g mL(-1). The detection limit of the proposed method was 2.2 x 10(-8) g mL(-1). This method was successfully applied to the determination of SA in milk and fruit juice samples
Template and target information: sorbic acid, SA

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