NEW POLYCRYSTALLINE SOLID-STATE RESPONSIVE ELECTRODES FOR THE DETERMINATION OF THE SELENITE ION

Authors
ZAREH MM AMIN AS ABDELAZIZ M
Citation
Mm. Zareh et al., NEW POLYCRYSTALLINE SOLID-STATE RESPONSIVE ELECTRODES FOR THE DETERMINATION OF THE SELENITE ION, Electroanalysis, 7(6), 1995, pp. 587-590
Citations number
33
Categorie Soggetti
Chemistry Analytical
Journal title
Electroanalysis → ACNP
ISSN journal
10400397
Volume
7
Issue
6
Year of publication
1995
Pages
587 - 590
Database
ISI
SICI code
1040-0397(1995)7:6<587:NPSREF>2.0.ZU;2-O
Abstract
New electrodes for the selective determination of selenite were constr ucted by compressing either HgSeO3 or a mixture of HgSeO3 and Hg2Cl2. The linear concentration range was 6.0 x 10(-5)-10(-1) M with a slope of 29.5 mV/concentration decade. The usable pH range for both electrod es was wide (3-10) and their life span was up to 8 days. Selectivity c oefficient values were determined for various anions and no significan t interferences were observed for most of them. The solubility product s of some sparingly soluble selenite salts were determined using the l atter electrode.