Ionic liquids functionalized β-cyclodextrin polymer for separation/analysis of magnolol.

Area of Science:

• Analytical Chemistry
• Materials Science
• Polymer Chemistry

Background:

• Magnolol analysis in pharmaceuticals requires sensitive and efficient methods.
• Traditional methods may lack selectivity or require extensive sample preparation.
• Functionalized cyclodextrin polymers offer potential for advanced separation techniques.

Purpose of the Study:

• To synthesize and characterize a novel ionic liquid functionalized β-cyclodextrin polymer (ILs-β-CDCP).
• To develop a solid-phase extraction and HPLC method for magnolol determination.
• To evaluate the efficiency and reliability of the ILs-β-CDCP adsorbent for magnolol analysis.

Main Methods:

• Synthesis of mono-6-deoxy-6-(1,2-dimethylimidazolium)-β-cyclodextrin iodide polymer (ILs-β-CDCP).
• Solid-phase extraction using ILs-β-CDCP as adsorbent.
• High-performance liquid chromatography (HPLC) for magnolol separation and quantification.
• Fourier-transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) for characterization.

Main Results:

• ILs-β-CDCP demonstrated rapid adsorption and elution of magnolol with methanol.
• The method achieved a preconcentration factor of 12.
• Linear range: 0.02-8.00 μg/mL, LOD: 1.9 ng/mL, R: 0.9992, RSD: 2.76%.
• Successful application in the determination of magnolol in real drug samples.

Conclusions:

• The developed method using ILs-β-CDCP is highly effective for magnolol determination.
• ILs-β-CDCP serves as a promising adsorbent for solid-phase extraction in analytical chemistry.
• The method offers good sensitivity, accuracy, and precision for magnolol analysis in complex matrices.