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Reference type: Journal
Authors: Zhang GK, Yang JW, Wang ZN, Bian K, Yang HC, He LM
Article Title: Preparation of Roxarsone Imprinted Polymers and Its Application to Solid Phase Extraction.
Publication date: 2013
Journal: Chinese Journal of Analytical Chemistry
Volume: 41
Issue: (9)
Page numbers: 1401-1405.
DOI: 10.3724/SP.J.1096.2013.30004
Alternative URL: http://210.14.121.5:8080/fxhx/EN/abstract/abstract13279.htm

Abstract: Molecularly imprinted polymers (MIP) with high selectivity to roxarsone (ROX) were prepared using arsanilic acid (ASA) as dummy template, 2-Vinylpyridine (2-VP) as monomer, ethylene glycol dimethacrylate (EGDMA) as cross-linker. The effects of porogen, monomer and cross-linker on the recognition capability of MIP were investigated. The optimal ratio of ASA, 2. VP, EGDMA, methanol. acetonitrile (1 : 1, V/V) and azobisisobutyronitrile was 1 mmol : 4 mmol : 20 mmol : 6 mL : 60 mg, respectively. The maximum adsorption of MIP to ROX was 0. 93 mg/g. The optimal conditions of solid phase extraction of MIP as adsorptive material for selective extraction and enrichment of ROX were: conditioning with water and acetonitrile, loading ROX in acetonitrile, washing with water and methanol, and eluting with methanol-formic acid (95. 5, V/V). The recovery of ROX on MIP cartridge was above 95% and that on NIP cartridge was only 43. 1%. The prepared MIP cartridge was applied to extract and enrich ROX in pond water, and the limit of detection of ROX was 0. 05 mg/L
Template and target information: roxarsone
Author keywords: Molecularly imprinted polymers, Roxarsone, Solid-phase extraction, dummy template


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