MIPdatabase
Authors: Sui DP, Chen HX, Liu L, Liu MX, Huang CC, Fan HT
Article Title: Ion-imprinted silica adsorbent modified diffusive gradients in thin films technique: Tool for speciation analysis of free lead species.
Publication date: 2016
Journal: Talanta
Volume: 148
Page numbers: 285-291.
DOI: 10.1016/j.talanta.2015.11.003
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914015304550
Abstract: A new diffusive gradients in thin films (DGT) device, using Pb(II) ion-imprinted silica (IIS) as the binding agents and commercial cellulose acetate dialysis (CAD) membrane as the diffusion layer (CAD/IIS-DGT), has been developed and evaluated for sampling and measurement of free Pb(II) species. The CAD/IIS-DGT devices were successfully applied to the measurement of free Pb(II) species in synthetic solutions, in natural freshwaters and in industrial wastewaters. The CAD/IIS-DGT provides reliable results over pH range of 4.5-6.5 and a wide range of ionic strength from 1.0 x 10-3 to 0.7 mol L-1. The concentrations of the free Pb(II) species in synthetic solution containing different concentrations of ligands measured by CAD/IIS-DGT showed a good agreement with the value measured by Pb-ion selective electrode. Field deployments of the CAD/IIS-DGT devices allowed accurate measurements of the concentrations of free Pb(II) species
Template and target information: lead ion, Pb(II)
Author keywords: Diffusive gradients in thin films, lead, ion-imprinted, water
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