Superpolar Chromatographic Stationary Phases and Extraction Sorbents


Florida International University (FIU) is pursuing commercial partners interested in developing Superpolar chromatographic stationary phases and extraction sorbents.

Poly(ethylene glycol) is commonly used as a polar polymer for immobilization on a substrate’s surface. However, immobilization of polar polymers, including PEG, on a substrate’s surface is still considered a challenge to surface chemists. The resulting substrates often display long extraction time, low solvent resistance, and low thermal stability. In addition, even though the incorporation of PEG polymer in the sol-gel matrix (sol-gel coating technology) improves solvent resistance and thermal stability of the composite material, the limited polarity of PEG remains a problem when employed to target highly polar analytes.

FIU inventors have designed and synthesized highly polar chromatographic stationary phases and adsorption sorbents comprising a sol-gel network of metal(s) oxide precursor condensed with highly polar polyhydroxy molecule(s). This synthesis offers a simple and environmental friendly approach of immobilization of highly polar molecules to a metal oxide network for use as superpolar stationary phase and/or extraction sorbent. The resulting superpolar sorbent networks can have properties derived from being a sol-gel inorganic/hybrid organic-inorganic polymeric network that can be formulated to display adjustable porosity, tunable selectivity, high thermal stability, solvent stability, and wide pH stability.

  • Can be an element of a sampling device, for example an extraction device such as a fiber superpolar microextraction fiber, superpolar microextraction tube, superpolar microextraction membrane, superpolar microextraction stir bar, superpolar microextraction fabric, superpolar microextraction capsule, or superpolar microextraction vial, or solid phase extractor selected from a matrix solid phase dispersant, a magnetic solid phase extractor, or a dynamic fabric phase sorptive extractor
  • Can be a component of an analytical device such as gas chromatograph, and liquid chromatograph stationary phase
  • Provides highly polar chromatographic stationary phases and adsorption sorbents for solid phase extraction or solid phase microextraction that can be effectively applied for polar, medium polar, nonpolar, and polarizable analytes
  • Provides substrate with adjustable porosity, tunable selectivity, high thermal stability, solvent stability, and a wide range of pH stability
  • Offers a simple, highly reproducible, and environmentally friendly synthesis

Call Anne-Laure “Anlo” Schmitt-Olivier at 305-348-5948 or fill out the quick contact form below.