MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Chang HC, Han GX, Bai K, Gao WB
Article Title: Studies of theophylline imprinted phenolic resin sorbent.
Publication date: 2011
Journal: Acta Polymerica Sinica
Issue: (4)
Page numbers: 340-346.
DOI: 10.3724/SP.J.1105.2011.10075
Alternative URL: http://www.gfzxb.org/EN/abstract/abstract13385.shtml

Abstract: By the technology of inverse suspension polymerization, theophylline template phenolic resin sorbent (TTPS) and non-template phenolic resin sorbent (NTPS) have been synthesized. Comparison of theophylline adsorption on TTPS and NTPS was made. The experimental results showed that the adsorption data fitted the Langmuir model, which implied the monomolecular layer sorption in these systems. Theophylline adsorption data matched Freundilich equation within the low concentration range, which meant the adsorption was preferential. By Scatchard analysis, it was found that TTPS showed specific binding sites. The dissociation constants and the maximum binding capacity were calculated to be K-d1 = 0.129 mmol/L and Q(max1) = 138 μmol/g for high affinity binding sites and K-d2 = 0. 433 mmol/L and Q(max2) = 184 μmol/g for lower affinity binding sites, respectively. Moreover, it was found that the sorption rate data of theophylline adequately fitted a semi-empirical rate equationn in initial period. It confirmed the particle-diffusion control mechanism of the sorption process. When 2. 00 mmol/L solution of theophylline at the rate of 3 BV/h flowed through TTPS columns, breakthrough point was 24th bed volume under dynamic condition. It was clear that with 1 mol/L hydrochloric acid at the rate of desorption 1.5 BV/h the removing of 97. 2% of all the theophylline adsorbed on TTPS was observed at 4 bed volumes. The result showed that TTPS possessed excellent desorption performance.
Template and target information: theophylline
Author keywords: molecularly imprinting, theophylline, phenolic resin sorbent, inverse suspension polymerization, adsorption

  SMI logo mouse mat  Periodic table Smart hat    Mug featuring the template Theophylline

Molecules Special Issue call      Appeal for information


Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.

Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:

Mickey Mouse 90th Anniversary banner