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Reference type: Journal
Authors: Yu JH, Ge L, Dai P, Zhang CC, Ge SG, Huang JD
Article Title: Highly selective determination of phenolphthalein by flow injection chemiluminescence method based on a molecular imprinting polymer.
Publication date: 2009
Journal: Luminescence
Volume: 24
Issue: (6)
Page numbers: 444-447.
DOI: 10.1002/bio.1135

Abstract: The phenolphthalein-imprinted polymer was prepared with methacrylic acid as functional monomer and ethylene glycol dimethacrylate as cross-linker. Taking advantage of the quenching effect of phenolphthalein on the potassium permanganate-HCl-anhydrous alcohol chemiluminescence system, a new model was established to determine phenolphthalein by a highly selective flow injection chemiluminescence method. The traditional flow-though cell was replaced with a novel flow path using a Y-shaped polymethyl methacrylate column, through which the three reactants were injected simultaneously. The linear range of this assay was from 1.0נ10-8 to 1.0נ10-6g/mL (r=0.9978). The limit of detection was 8.9נ10-9g/mL. The relative standard deviation for the determination of 1.0נ10-8g/mL phenolphthalein solution was below 2.9% (n=11). The proposed method was applied to the determination of phenolphthalein in real samples with satisfactory results. Copyright 2009 John Wiley & Sons, Ltd
Template and target information: phenolphthalein
Author keywords: molecular imprinting polymer, chemiluminescence, phenolphthalein, flow injection

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