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Sensitive Determination of Zinc(II) in Real Samples Using a Poly(4‐vinylpyridine)/Mercury Film Electrode
Author(s) -
Zen JyhMyng,
Tsai DongMung,
Yang HsuehHui
Publication year - 2003
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200300056
Subject(s) - chemistry , mercury (programming language) , anodic stripping voltammetry , zinc , electrode , detection limit , analytical chemistry (journal) , ion , square wave , polarography , dropping mercury electrode , trace amounts , inorganic chemistry , electrochemistry , chromatography , medicine , physics , alternative medicine , organic chemistry , voltage , quantum mechanics , pathology , computer science , programming language
Abstract A poly(4‐vinylpyridine)/mercury film electrode (PVP/MFE) was applied for the determination of trace amounts of zinc ion by square‐wave anodic stripping voltammetry. The PVP/MFE shows better mechanical stability, higher sensitivity, and enhanced resistance to common ions and surface‐active compounds than conventional mercury film electrodes. Various experimental parameters affecting the performance of the PVP/MFE in Zn(II) determination were optimized. Under the optimized conditions, the PVP/MFE shows a linear response up to 50 μg l −1 with a detection limit (S/N = 3) of 1.7 μg l −1 . The practical applicability of the electrode was evaluated through the analytical estimation of Zn(II) in various real samples.