A HIGHLY SELECTIVE IODIDE ELECTRODE BASED ON THE BIS(BENZOIN)-SEMIETHYLENEDIAMINE COMPLEX OF MERCURY(II) AS A CARRIER

Authors
SONG YQ YUAN R YING M LI ZQ CHAI YQ CUI H SHEN GL YU RQ
Citation
Yq. Song et al., A HIGHLY SELECTIVE IODIDE ELECTRODE BASED ON THE BIS(BENZOIN)-SEMIETHYLENEDIAMINE COMPLEX OF MERCURY(II) AS A CARRIER, Fresenius' journal of analytical chemistry, 360(1), 1998, pp. 47-51
Citations number
20
Categorie Soggetti
Chemistry Analytical
Journal title
Fresenius' journal of analytical chemistry → ACNP
ISSN journal
09370633
Volume
360
Issue
1
Year of publication
1998
Pages
47 - 51
Database
ISI
SICI code
0937-0633(1998)360:1<47:AHSIEB>2.0.ZU;2-0
Abstract
A new PVC membrane electrode based on the bis(benzoin)-semiethylenedia mine (BBSEA) complex of HS(II) is described which exhibits excellent s electivity towards iodide, related to the unique interaction between t he central Hg(II) and the iodide ion. The electrode has a linear respo nse to iodide from 5 x 10(-7) to 5 x 10(-4) mol/L with a slope of 58 m V/dec.(20 degrees C). The response characteristics were investigated i n detail and the mechanism of the electrode was studied with AC impeda nce and quartz crystal microbalance (QCM) techniques. It can be used f or iodide determinations in drug preparations.