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Mercury ion-selective polymeric membrane electrodes based on substituted diaza crown ethers

✍ Scribed by Zbigniew Brzozka; Marek Pietraszkiewicz

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
270 KB
Volume
3
Category
Article
ISSN
1040-0397

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✦ Synopsis

The potentiometric selectivities of membranes based on new N,N'-substituted 4,13-diaza-18crown-6 ethers were determined under different internal filling electrolytes and conditioning time of the membranes. The preference of Hg2+ over other divalent cations was observed for compounds bearing 2-methylquinolyl or 2-methylquinolyl-1-oxide groups. The membrane electrodes with ionophores 1 and 2 exhibited a linear response in the activity range 10-5-10-3 M Hg(NO&.

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