MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Yang B, Li JP, Zhang LM, Xu GB
Article Title: A molecularly imprinted electrochemiluminescence sensor based on the mimetic enzyme catalytic effect for ultra-trace Ni2+ determination.
Publication date: 2016
Journal: Analyst
Volume: 141
Issue: (20)
Page numbers: 5822-5828.
DOI: 10.1039/C6AN00926C

Abstract: A novel molecularly imprinted polymer (MIP) electrochemiluminescence (MIP-ECL) sensor was developed for the highly sensitive and selective determination of ultra-trace levels of Ni2+. The complex Ni2+-dimethylglyoxime (Ni-DMG) was chosen as the template molecule to construct the MIP and then acted as a mimetic enzyme to catalyse the oxidisation of luminol to enhance the ECL signal. When the imprinted cavities were occupied by Ni-DMG in the rebinding process, the ECL intensities produced by the luminol-H2O2 ECL system on the MIP-modified electrode surface increased with increased concentration of the Ni-DMG complex. The highly sensitive determination of Ni2+ was achieved through a catalytic reaction. This technique could be used for the quantitative analysis of Ni2+ with concentrations from 3.0 x 10-12 mol L-1 to 6.0 x 10-9 mol L-1. The detection limit was 1.01 x 10-12 mol L-1, which is much lower than that reported previously. In addition, the allowable amounts of interference ions in the MIP-ECL sensor were higher than that in other common molecularly imprinted sensors because of its excellent recognition of 3D cavity-to-complex molecules and ligand-to-metal ions. This method was successfully used to determine Ni2+ in real samples, such as apples, carrots and grapes, and has been proven feasible for practical applications
Template and target information: nickel ion, Ni(II)


  mipdatabase.com logo imprinters do it in bulk shirt  Science Teacher peptide mug    mug featuring the element Nickel

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