MIPs logo MIPdatabase      Special issue call for papers   
Custom Search
Reference type: Journal
Authors: Wang S, Xu Z, Fang G, Duan Z, Zhang Y, Chen S
Article Title: Synthesis and Characterization of a Molecularly Imprinted Silica Gel Sorbent for the On-Line Determination of Trace Sudan I in Chilli Powder through High-Performance Liquid Chromatography.
Publication date: 2007
Journal: Journal of Agricultural and Food Chemistry
Volume: 55
Issue: (10)
Page numbers: 3869-3876.
DOI: 10.1021/jf070261t

Abstract: Abstract: A highly selective imprinted polymer was synthesized by a surface molecular imprinting technique in combination with a sol-gel process. The imprinted polymer was evaluated by FT-IR and static and kinetic adsorption experiments. The results showed that the imprinted sorbent exhibited good recognition and selective ability, offered a faster kinetics for the adsorption and desorption of Sudan I than the non-imprinted sorbent, a saturated binding capacity (Qmax) that reached 33.47 mg g-1. The prepared sorbent was applied for the determination of trace Sudan I through on-line solid-phase coupled with high-performance liquid chromatography (SPE-HPLC). With a loading flow rate of 1.5 mL min-1 for sampling 50 mL, an enrichment factor of 1266 was achieved. The detection limit (S/N = 3) was 1.2 ng L-1, and the peak area precision (RSD) for five replicate detections of 0.01 g L-1 Sudan I was 3.66%. The Sudan I in the chilli powder from the local market was determined at three levels (0.25, 0.5, and 1.0 ng g-1) with recoveries ranging from 80.31 to 94.02%. Keywords: Sudan I; molecular imprinting; sol-gel; on-line solid-phase extraction; high-performance liquid chromatography
Template and target information: Sudan I
Author keywords: Sudan I, molecular imprinting, sol-gel, On-line solid phase extraction, high-performance liquid chromatography

  Mister Benzene Comic Strip shirt  Chemistry peptide mug  Beach bunny periodic table shirt


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner