Cobalt(II) ion-selective electrode with solid contact

• Authors: Cecylia Wardak
• Languages of publication: EN

Abstracts

EN

A new all plastic sensor for Co2+ 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 × 10−6 mol L−1 and almost theoretical Nernstian slope in the activity range 4.0 × 10−6–1 × 10−1 mol L−1 of 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 Co2+ in real samples and as an indicator electrode in potentiometric titration of Co2+ ions with EDTA. [...]

Keywords

EN

Cobalt-selective electrode; Potentiometry; Chelating agent; Flow injection analysis

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2008
• Volume: 6
• Issue: 4
• Pages: 607-612

Dates

published

1 - 12 - 2008

online

28 - 10 - 2008

Contributors

author

Cecylia Wardak

• Department of Analytical Chemistry and Instrumental Analysis, Faculty of Chemistry, M. Curie-Sklodowska University, 3 M Curie Sklodowska Square, 20031, Lublin, Poland

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Identifiers

DOI

10.2478/s11532-008-0060-1