Preparation of molecularly imprinted polymers on the surface of optical fiber for HS-solid-phase microextraction of phenol

ABSTRACT

Optical fiber was modified with 3-(methacryloxy)propyltrimethoxysilane and copolymerized with the vinyl end groups and methacrylic to graft a thin layer of molecular imprinted polymer on the surface of the fiber without surface controlling. The modified fiber with phenol-imprinted polymer was coupled with gas chromatograph for headspace solid-phase microextraction (HS-SPME) of phenol. The extraction properties were examined using the SPME device coupled with a gas chromatograph–flame ionization detector (FID). Effects of extraction parameters, namely pH, exposure time, sampling temperature, and salt concentration, on extraction efficiency were also studied.

KEYWORDS:

• Gas chromatography
• headspace solid-phase microextraction
• molecularly imprinted polymer
• optical fiber
• phenol

Acknowledgments

We are grateful to the Laboratory Complex of Damghan Branch, Islamic Azad University and Pars Material Research and Testing (PMRT) for valuable technical assistance.

Declaration of interest

The authors declare that they have no conflict of interest.