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On‐Line Analysis of Mercury by Sequential Injection Stripping Analysis (SISA) Using a Chemically Modified Electrode
Author(s) -
Turyan Iva,
Erichsen Thomas,
Schuhmann Wolfgang,
Mandler Daniel
Publication year - 2001
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/1521-4109(200101)13:1<79::aid-elan79>3.0.co;2-4
Subject(s) - anodic stripping voltammetry , mercury (programming language) , electrode , stripping (fiber) , dropping mercury electrode , analytical chemistry (journal) , voltammetry , materials science , chemistry , aqueous solution , electrochemistry , chromatography , organic chemistry , computer science , composite material , programming language
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 preparation 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 anodic stripping voltammetry of mercury using differential pulse voltammetry. A sequence of 36 operations was needed to complete a full cycle of cleaning, calibration and analysis.