Open AccessGold–Copper Film Electrode for Voltammetry Determination of Mercury in Water
Author(s) -
Nhi Phuong Thi Nguyen,
Nguyễn Thị Huệ,
Nguyen Van Hop,
Hoang Thai Long
Publication year - 2021
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2021/2202677
Subject(s) - mercury (programming language) , copper , electrode , detection limit , anodic stripping voltammetry , analytical chemistry (journal) , stripping (fiber) , ion , chemistry , voltammetry , working electrode , deposition (geology) , nuclear chemistry , electrochemistry , materials science , inorganic chemistry , metallurgy , chromatography , organic chemistry , composite material , paleontology , sediment , computer science , biology , programming language
Gold-copper film electrode prepared in situ on carbon paste solid disk substrate (Au–CuF/CPE) was studied as a working electrode. The factors influencing mercury stripping peak currents, such as C Au III (0.20 mg/L), C Cu II (0.05 mg/L), type of acids and their concentration (HClO4, 0.005 M), deposition potential (-800 mV) for Au–CuF/CPE, deposition time (180 s), and interferents, were investigated and optimized. The method has a low limit of detection of 0.13 μg/L and is not affected significantly by the examined ions/substance. It was applied to detect the concentration of Hg in real water samples and is promising for practical usage.
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