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Citation: ZHOU Nan, ZHU Xiashi. Preparation of Imidazolyl Substituted β-Cyclodextrin Polymers as a Solid-phase Extractant and Its Analytical Application[J]. Chinese Journal of Applied Chemistry, ;2014, 31(4): 469-473. doi: 10.3724/SP.J.1095.2014.30326 shu

Preparation of Imidazolyl Substituted β-Cyclodextrin Polymers as a Solid-phase Extractant and Its Analytical Application

ZHOU Nan ,
ZHU Xiashi ^,

1.
College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China

Corresponding author: ZHU Xiashi,
Received Date: 1 July 2013
Available Online: 12 August 2013
Fund Project: 国家自然科学基金资助项目(20875082,21155001) (20875082,21155001)

Mono-6-deoxy-6-imidazole-β-cyclodextrin polymer(β-CDIMCP) was synthesized and used as a new solid phase adsorbent to pre-concentrate/separate trace amount of safranine T in solutions.The results from UV-visible spectroscopy measurements show that β-CDIMCP had a better adsorption performance than β-CDCP.Safranine T was adsorbed by β-CDIMCP rapidly with an adsorption efficiency of 95% at room temperature and pH=11.0.When 3.0 mL of anhydrous ethanol was used as the eluant,the elution efficiency reached 90% in 8 minutes.Under the optimum condition,the preconcentration factor of the proposed method was 10.The detection limit(DL),RSD,linear range,and correlation coefficient was found to be 4.9 μg/L,3.4%(n=3,ρ=3.00 mg/L),0.09~6.0 mg/L and 0.9972,respectively.This proposed method was successfully applied to the determination of safranine T in real samples.The molecular interaction between β-CDIMCP and safranine T was studied through the inclusion constant study.
- safranine T,
- imidazole-β-cyclodextrin polymer,
- solid-phase extraction,
- ultra-violet spectroscopy
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