Cobalt(II) ion-selective electrode with solid contact

Abstract

Abstract:A new all plastic sensor for Co 2+ ions based on 2-amino-5 (hydroxynaphtyloazo-1')-1,3,4 thiadiazole (ATIDAN) as ionophore was prepared. The electrode exhibits a low detection limit of 1.5 x 10 -6 mol L -1 and almost theoretical Nernstian slope in the activity range 4.0 x 10of cobalt ions. The response time of the sensor is less than 10 s and it can be used over a period of 6 months without any measurable divergence in potential. The proposed sensor shows a fairly good selectivity for Co(II) over other metal ions. The electrode was successfully applied for determination of Co 2+ in real samples and as an indicator electrode in potentiometric titration of Co 2+ ions with EDTA.© Versita Warsaw and Springer-Verlag Berlin Heidelberg.

Assessing fate and bioavailability of trace elements in soils after digestate application

“…The most attractive features of this technique, besides low cost and quick analysis time, are the wide measuring range, the portability of the device, the nondestruction of the sample and the requirement of minimum sample pretreatment. TEs important in AD bioprocesses, for example, cobalt, nickel, zinc and copper, can be determined by ISE (Wardak 2008(Wardak , 2014Wardak & Lenik, 2013).…”