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Issue 9, 2014
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Synthesis, characterization and evaluation of hollow molecularly imprinted polymers for Sudan I

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Abstract

A novel strategy was developed to prepare hollow molecularly imprinted polymers (HMIPs) with thin solid shells, in which a soft polystyrene core and a hard inner shell of SiO2 were introduced; this strategy combined surface molecular imprinting of Sudan I and in situ polymerization. The HMIPs possessed good morphological stability without deformation or breakage owing to the existence of SiO2. The thin imprinted coating (50 nm) of HMIPs ensured a faster mass transfer and a higher efficiency of active site utilization during adsorption. Moreover, the HMIPs were successfully applied as a solid-phase extraction (SPE) sorbent for the selective adsorption of Sudan I in chilli powder samples, and satisfactory recoveries were obtained in the range of 95–108% with spiked samples.

Graphical abstract: Synthesis, characterization and evaluation of hollow molecularly imprinted polymers for Sudan I

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Supplementary files

Article information


Submitted
17 Feb 2014
Accepted
12 Mar 2014
First published
12 Mar 2014

Anal. Methods, 2014,6, 3079-3085
Article type
Paper
Author version available

Synthesis, characterization and evaluation of hollow molecularly imprinted polymers for Sudan I

D. Ren, J. He and H. Zhang, Anal. Methods, 2014, 6, 3079
DOI: 10.1039/C4AY00382A

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