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Reference type: Journal
Authors: Popov SA, Chumichkina YuA, Shapovalova EN, Dmitrienko SG, Zolotov YuA
Article Title: Preconcentration of 2,4-dichlorophenoxyacetic acid on molecularly imprinted polymers and its subsequent determination by high performance liquid chromatography.
Publication date: 2011
Journal: Journal of Analytical Chemistry
Volume: 66
Issue: (1)
Page numbers: 6-10.
DOI: 10.1134/S1061934811010126

Abstract: The potency of molecularly imprinted polymers (MIP) for 2,4-dichlorophenoxyacetic acid (2,4-D) in the dynamic sorption preconcentration (solid phase extraction) of 2,4-D and three other structurally related species (2,4-dichlorophenol, 2-chlorophenol, and dikamba) from aqueous solutions is assessed. The optimal conditions for preconcentration are found: 0.01 M HCl, 25-100 mL of solution, flow rate of solution 0.7 mL/min, column (15 2.7 mL), and sorbent weight 0.04 g. The analytes are desorbed with 1 mL of methanol and detected in the eluate by reversed-phase HPLC with spectrophotometric detection at 225 nm. The detection limit for 2,4-D makes 0.4 μg/mL without preconcentration and 0.01 μg/mL with preconcentration from a volume of 100 mL. The procedure is applied to the analysis of model mixtures based on fresh river water. Original Russian Text S.A. Popov, Yu.A. Chumichkina, E.N. Shapovalova, S.G. Dmitrienko, Yu.A. Zolotov, 2011, published in Zhurnal Analiticheskoi Khimii, 2011, Vol. 66, No. 1, pp. 8-12.
Template and target information: 2,4-dichlorophenoxyacetic acid, 2,4-D, 2,4-dichlorophenol, 2-chlorophenol, dikamba
Author keywords: 2,4-dichlorophenoxyacetic acid, molecularly imprinted polymer, preconcentration, HPLC determination

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