Fabrication of new drug imprinting polymer beads for selective extraction of naproxen in human urine and pharmaceutical samples.
A drug imprinting polymer based on suspension polymerization was prepared with N,N-dimethylacrylamide and 1-(N,N-bis-carboxymethyl) amino-3-allylglycerol as functional monomers, N,N methylene diacrylamid as the cross-linker, naproxen as the template and 2,2'-azobis (2-methylbutyronitrile) as the initiator. The drug imprinted polymer was characterized by Fourier transform infrared spectroscopy, elemental analysis, thermogravimetric analysis and transmission electron microscopy. The imprinted polymer of agglomerated micro-particles with multi-pores was used for solid phase extraction. The drug imprinted polymer sorbent was selective for naproxen. The profile of the naproxen uptake by the sorbent reflects good accessibility of the active sites in the imprinted polymer sorbent. In addition, the equilibrium adsorption data of naproxen by imprinted polymer were analyzed by Langmuir isotherm models. The developed method was utilized for determination of naproxen in pharmaceutical and human urine samples by high performance liquid chromatography with satisfactory results.
Department of Chemistry, Islamic Azad University, Central Tehran Branch, Iran. h.ahmadpanahi@iauctb.ac.ir
Homayon Ahmad
HA
Panahi
Alireza
A
Feizbakhsh
Sardar
S
Khaledi
Elham
E
Moniri
D000180:Acrylic Resins / Q000737:chemistry*; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000032:analysis* / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003432:Cross-Linking Reagents / Q000737:chemistry; D006801:Humans; D046529:Microscopy, Electron, Transmission; D054802:Molecular Imprinting / Q000379:methods; D009288:Naproxen / Q000032:analysis* / Q000737:chemistry; D058105:Polymerization; D052616:Solid Phase Extraction; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry
D000180:Acrylic Resins; D000894:Anti-Inflammatory Agents, Non-Steroidal; D003432:Cross-Linking Reagents; C552859:poly(1-(N,N-bis-carboxymethyl)amino-3-allylglycerol-co-dimethylacrylamide)copolymer; D009288:Naproxen