Functionalized β-Cyclodextrin Polymer Solid Phase Extraction Coupled with UV–Visible Spectrophotometry for Analysis of Kaempferol in Food Samples
作者： Nan Zhou , Renhao Sang , XiaShi Zhu
DOI: 10.1007/S12161-013-9742-1
关键词:
摘要: Functionalized β-cyclodextrin polymer, mono-6-deoxy-6-imidazole-β-cyclodextrin polymer (β-CDIMCP), was synthesized as a new solid phase adsorbent coupled with UV–visible spectroscopy to separate/analyze trace kaempferol. The results showed that kaempferol adsorbed rapidly by β-CDIMCP (adsorption efficiency, 94.7 %) and then eluted methanol (elution 93.4 %). Under the optimum conditions, calibration curve linear in concentration range from 0.10 14.0 μg/mL, correlation coefficient (R) of 0.9965. And limit detection 0.028 μg/mL for preconcentration factor method tenfold. molecular interaction between studied through inclusion constant FTIR analysis. present had been successfully applied determine red wine samples.
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