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Determination of mercury on a carbon paste electrode modified with humic acid
Author(s) -
Navrátilová Zuzana,
Kula Petr
Publication year - 1992
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/elan.1140040703
Subject(s) - humic acid , carbon paste electrode , chemistry , electrode , differential pulse voltammetry , mercury (programming language) , inorganic chemistry , dropping mercury electrode , carbon fibers , voltammetry , cyclic voltammetry , nuclear chemistry , electrochemistry , materials science , organic chemistry , fertilizer , composite material , composite number , computer science , programming language
The binding of Hg(II) with humic acid, incorporated into the carbon paste electrode, was verified. This modified humic acid electrode was used for the trace determination of Hg(II). The differential‐pulse voltammetry on the electrode modified with humic acid yielded good performance over the concentration range 5 × 10 −8 –5 × 10 −7 M Hg(II). Only Cu(II) interferes with the determination.