MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Xie FZ, Liu GJ, Wu FC, Guo GH, Li GL
Article Title: Selective adsorption and separation of trace dissolved Fe(III) from natural water samples by double template imprinted sorbent with chelating diamines.
Publication date: 2012
Journal: Chemical Engineering Journal
Volume: 183
Issue: (1)
Page numbers: 372-380.
DOI: 10.1016/j.cej.2012.01.018
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1385894712000216

Abstract: A double template imprinted sorbent with chelating diamines was prepared by sol - gel process for the selective separation and enrichment of trace Fe(III) from natural water samples prior to its determination by flame atomic adsorption spectroscopy (FAAS). The resulting materials were characterized by SEM, FTIR, elemental analysis and nitrogen gas adsorption - desorption. Compared with the CTAB imprinted sorbent (CTAB-imp) and the Fe(III) imprinted sorbent (Fe-imp), the double template imprinted sorbent (Fe-CTAB-imp) had higher selectivity and adsorption capacity for Fe(III). In the presence of Cr(III) ion, selectivity coefficient of the Fe-CTAB-imp for Fe(III) were 261 and 267, respectively, which are much higher than that of CTAB-imp (1.61 and 1.32). The uptake capacities of the Fe-CTAB-imp were much higher than those of sorbents prepared without CTAB template. The relative selectivity coefficient of the Fe-CTAB-imp for Fe(III)/Cr(III) was 68.9 times greater than the Fe-imp. The sorption isotherms on the Fe-CTAB-imp conformed to the Langmuir equation, and the theoretical sorption capacity was 36.90 3.16 mg/g. Furthermore, the Fe-CTAB-imp possessed fast sorption kinetics for Fe(III) from aqueous solution with a saturation time of less than 5 min, and could be used repeatedly. Combined with FAAS, the method detection limit for Fe(III) could reach the level of 0.26 ng/mL. This sorbent has been successfully applied to the separation and determination of trace Fe(III) in reference materials, artificial seawater, fresh water and nearshore seawater samples with satisfactory results
Template and target information: iron ion, ferric ion, Fe(III)
Author keywords: Double template, Imprinted sorbent, separation, Dissolved Fe(III), Selective

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

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