A novel bifunctional molecularly imprinted polymer for determination of Congo red in food

作者：Liu, Fei; Zhang, Shengchen; Wang, Gailing; Zhao, Jingchan^*; Guo, Zhian

来源：RSC Advances, 2015, 5(29): 22811-22817.

DOI：10.1039/c4ra14719g

• SOLID-PHASE EXTRACTION
• PERFORMANCE LIQUID-CHROMATOGRAPHY
• SUDAN-I
• SELECTIVE EXTRACTION
• MALACHITE GREEN
• FEED SAMPLES
• DYES
• ADSORPTION
• SEPARATION
• SAUCE

A novel bifunctional molecularly imprinted polymer was synthesized in an aqueous system with Congo red as template, beta-cyclodextrin-maleic anhydride (beta-CD-MA) and [2-(methacryloyloxy) ethyl] trimethylammonium chloride (DMC) as co-functional monomers and N, N-methylenebisacryl amide (MBA) as cross-linking agent, respectively. MIP was used as selective sorbent for the solid-phase extraction (SPE) of Congo red from food. And the elution was determined by HPLC. The mean recovery was 84.2-105.2%, the RSD <= 1.2%, the repeatability was 1.1-3.8%. The LOD and LOQ were 0.07 and 0.23 mu g kg(-1), respectively. The evaluation of validation data verified that the MIP has high selectivity and recovery, and it can be applied for the selective extraction and determination of Congo red in food.

• 出版日期2015
• 单位西北大学