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Simultaneous real‐time assay of copper and cadmium ions by infrared photo diode electrode implanted in the muscle of live fish
Author(s) -
Young Ly Suw,
Keun Kim Jong
Publication year - 2009
Publication title -
journal of biochemical and molecular toxicology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.526
H-Index - 58
eISSN - 1099-0461
pISSN - 1095-6670
DOI - 10.1002/jbt.20287
Subject(s) - copper , infrared , chemistry , cadmium , electrode , ion , fish <actinopterygii> , diode , optoelectronics , materials science , optics , fishery , biology , physics , organic chemistry
The electrical circuit of an infrared photodiode electrode (IPE) was used in the simultaneous assay of copper and cadmium ions. The electrode's cyclic voltammetry (CV), chronoamperometry and square‐wave (SW) stripping voltammetric optimum conditions were examined. Results for 0–160 mg L −1 and 50–400 μg L −1 SW Cu(II) Cd(II), the relative standard deviation of 0.158 Cu(II), 0.077 Cd(II) ( n = 15) using 20.0 mg L −1 have been obtained at optimum conditions. The low detection limit ( S / N ) was attained to be at 14.71 μg L −1 (2.31 × 10 −7 mol L −1 ) Cu(II) and 18.42 μg L −1 (1.63 × 10 −7 mol L −1 ) Cd(II). The handmade electrode was implanted deep in the muscle of live fish and interfaced with an electrochemical workstation. Real‐time analytical application was performed on the online assay of living tissue as the specimen was moving. The methods are deemed useful in interfaced assay for physiological control, nanodiode fabrication, and in the production of laboratory on a biochip. © 2009 Wiley Periodicals, Inc. J Biochem Mol Toxicol 23:256–262, 2009; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/jbt.20287