On-line analysis of mercury by sequential injection stripping analysis (SISA) using a chemically modified electrode

Authors
Turyan, I Erichsen, T Schuhmann, W Mandler, D
Citation
I. Turyan et al., On-line analysis of mercury by sequential injection stripping analysis (SISA) using a chemically modified electrode, ELECTROANAL, 13(1), 2001, pp. 79-82
Citations number
28
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ELECTROANALYSIS
ISSN journal
10400397 → ACNP
Volume
13
Issue
1
Year of publication
2001
Pages
79 - 82
Database
ISI
SICI code
1040-0397(200101)13:1<79:OAOMBS>2.0.ZU;2-F
Abstract
A highly flexible, automatic sequential-injection stripping analysis (SISA) system has been developed and applied For monitoring the levels of mercury in aqueous solutions using a chemically modified electrode. The preparatio n of the modified electrode comprises spin coating of an ethanolic solution of poly(4-vinylpyridine) and Kryptofix-222 onto a glassy carbon electrode (GCE) followed by cross-linking the polymer. The analysis is based on the a nodic stripping voltammetry of mercury using differential pulse voltammetry . A sequence of 36 operations was needed to complete a full cycle of cleani ng, calibration and analysis.