Alternatively for mipdatabase quick searches go here

Custom Search

Abstract: In this research, a new strategy for construction of a development potentiometric carbon paste Zn2+-ion selective electrode based on a novel nano-sensing layer is suggested. The proposed nano-sensing layer was prepared with the addition of a synthesised Zn2+-ion imprinted polymer nanoparticles 'as an efficient sensing agent' into the carbon paste matrix consisting of graphite powder, nanographene-composite 'graphene nanosheets decorated with silver nanoparticles' and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide 'an ionic liquid', as the conducting binder. Under the optimised experimental conditions, the suggested nanographene-composite potentiometric sensor presented a low detection limit of 1.93 x 10-1 μg L-1 and a linear analytical range from 2.62 x 10-1 to 6.54 x 105 μg L-1 with an excellent Nernstian slope of 29.80 mV decade-1. The proposed zinc selective sensor was successfully applied for the highly sensitive determination of trace amounts of Zn2+ in environmental and biological samples with satisfactory results
Template and target information: zinc ion, Zn(II)
Author keywords: Zn2+-ion imprinted polymer nanoparticles, potentiometric carbon paste electrode, nanographene, Ionic liquid, Silver nanoparticles