Cover Page September-2010-Advanced Materials Letters

Advanced Materials Letters

Volume 1, Issue 2, Pages 164-169, September 2010
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A High Throughput Chemiluminescence Method Based On Molecularly Imprinted Sol-gel Films For Determination Of Sibutramine

Fuwei Wan, Jinghua Yu*, Shenguang Ge, Mei Yan, Kexiao  Yu, Meng Zhang

Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical

Engineering, University of Jinan, Jinan 250022, China

Adv. Mater. Lett., 2010, 1 (2), pp 164-169

DOI: 10.5185/amlett.2010.7138

Publication Date (Web): Apr 08, 2012

E-mail: wanfw1984@hotmail.com

Abstract

A novel and high throughput chemiluminescence (CL) method for determination of sibutramine was originally developed based on potassium permanganate-hydrochloric acid-(tween-80) CL system. Molecularly imprinted sol-gel film (MIF) was synthesized and used as selective material to improve the selectivity of CL. In the proposed procedure, sibutramine molecule was adsorbed into the MIF, and then potassium permanganate, hydrochloric acid and tween-80 were added in wells of a 96-well plate, Based on which, sibutramine was oxidized and CL was produced and detected by a photomultiplier tube (PMT). The CL intensity was correlated linear with the concentration of sibutramine over the range of 5.0 × 10-8-1.0 × 10-6 g×mL-1  and the detection limit was 1.8 × 10-8 g×mL-1 . The relative standard deviation (RSD) was 3.1% for determination of 1.0 × 10-7 g×mL-1 sibutramine (n = 11). The fabricated molecularly imprinted sol-gel film possessed good selectivity and could be regenerated. This method was successfully applied to the determination of sibutramine in weight-reducing tonic.

Keywords

Sibutramine, chemiluminescence, molecularly imprinted film, high throughput

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