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Updated: Aug 31, 2025

Fluorescence detection methods for microfluidic droplet platforms

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Published on: December 10, 2011

Superhydrophobic fluorinated microspheres for fluorous affinity chromatography.

Yanyan Wang¹, Liuqian Bao¹, Jiajing Sun¹

¹Shandong Provincial Key Laboratory of Fluorine Chemistry and Chemical Materials, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China.

Journal of Chromatography. A

|August 24, 2022

Summary

Researchers developed novel fluorinated microspheres for fluorous affinity chromatography. These superhydrophobic materials enable efficient separation of fluoro compounds with lower back pressure, highlighting the importance of stationary phase wettability.

Keywords:

Fluorous affinity HPLC Microsphere Precipitation polymerization Stationary phase

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Last Updated: Aug 31, 2025

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Published on: April 18, 2019

Area of Science:

Analytical Chemistry
Materials Science
Chromatography

Background:

Fluorous affinity chromatography is key for fluoro compound separation.
Wettability of fluorinated stationary phases is often overlooked.
Developing novel stationary phases with tunable properties is crucial.

Purpose of the Study:

To synthesize and characterize novel micro-sized fluorine-containing microspheres.
To investigate the effect of monomer composition on particle size and wettability.
To evaluate the performance of these microspheres as stationary phases in high-performance liquid chromatography (HPLC).

Main Methods:

Solvothermal precipitation polymerization to create microspheres.
Tuning particle size and wettability by alternating fluoro monomers.
Packing microspheres into steel-less columns for HPLC.
Contact angle measurements to assess superhydrophobicity.

Main Results:

Microspheres with narrow size distribution were obtained, even at high monomer loading (15 wt%).
Poly(divinylbenzene -dodecafluoroheptyl methacrylate) (P(DVB-DFHMA)) microspheres (6.1 μm) exhibited superhydrophobicity (153.2° water contact angle).
The P(DVB-DFHMA) column demonstrated efficient separation of fluoro compounds via fluorine-fluorine interactions, outperforming commercial C18 columns.

Conclusions:

Stationary phase wettability is a critical factor in fluorous affinity chromatography.
Tunable, superhydrophobic fluorinated microspheres can be synthesized for advanced chromatographic applications.
The developed P(DVB-DFHMA) stationary phase offers superior separation of fluoro compounds with reduced back pressure.