Rapid determination of trace level copper in tea infusion samples by solid contact ion selective electrode
By Aysenur Birinci and Hilal Eren and Fatih Coldur and Emine Coskun and Muberra Andac
Published in Journal of Food and Drug Analysis
2016
Abstract
A new solid contact copper selective electrode with a poly (vinyl chloride) (PVC) membrane consisting of o-xylylenebis(N,N-diisobutyldithiocarbamate) as ionophore has been prepared. The main novelties of constructed ion selective electrode concept are the enhanced robustness, cheapness, and fastness due to the use of solid contacts. The electrode exhibits a rapid (< 10 seconds) and near-Nernstian response to Cu2+ activity from 10?1 to 10?6