MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: Ng SM, Narayanaswamy R
Article Title: Fluorescence sensor using a molecularly imprinted polymer as a recognition receptor for the detection of aluminium ions in aqueous media.
Publication date: 2006
Journal: Analytical and Bioanalytical Chemistry
Volume: 386
Issue: (5)
Page numbers: 1235-1244.
DOI: 10.1007/s00216-006-0736-3

Abstract: This paper describes the investigation of a molecularly imprinted polymer (MIP) as a sensing receptor for Al3+ ion detection by using an optical approach. Al3+ ion was adopted as the template molecule and 8-hydroxyquinoline sulfonic acid ligand as the fluorescence tag. The polymer was synthesised using acrylamide as monomer, 2-hydroxyethyl methacrylate as co-monomer and ethylene glycol dimethracylate as cross-linker. The free radical polymerisation was performed in methanol and initiated by 2,2'-azobisisobutyronitrile at 70 C. The imprinted polymer was fluorometrically characterised using a fibre optic attachment in a self-designed flow-cell. NaF was used to leach the Al3+ ion from the MIP. The optimum pH for the rebinding of Al3+ ion with the leached polymer was found to be pH 5 and the fluorescence response was found to be stable within the buffer strength range of 0.050.10 M. The fluorescence intensity during Al3+ ion rebinding was inversely dependent on temperature, and a low interference response (<3%) toward metal ions except for Cu2+ and Zn2+ ions was observed. The polymer rebinding repeatability study conducted over 9 cycles with Al3+ ion (0.810-4 M) was found to give an RSD value of 2.82% with a standard deviation of 0.53. The dynamic range of the system was found to be linear up to 1.010-4 M Al3+ ion with a limit of detection of 3.62 M.
Template and target information: Aluminium ion, Al(III)
Author keywords: molecularly imprinted polymer (MIP), Optical sensor, Aluminium ion, 8-Hydroxyquinoline sulfonic acid (8HQS), Fluorescence complex


  Periodic table Crab Cakes - the chemical formula for a fishy snack shirt  Periodic table Bag bag  Meerkat somebody mention coffee mug

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:
US listings   UK listings

Searching for Molecular Imprinting books on Amazon.com:
Molecular Imprinting
Imprinted Polymers
Polymer Chemistry
Organic Chemistry
Biosensors

Find what you need at Amazon.com

Lab supplies from Amazon