Journal
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
Volume 813, Issue -, Pages 9-19Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2018.02.009
Keywords
Fungal soil biomass; Single walled carbon nanotubes (SWCNTs); Chemically modified CGE; DPASV; Heavy metals biosensor
Categories
Ask authors/readers for more resources
A sensitive voltammetric method for detection of trace heavy metal ions using a glassy carbon electrode surfaces chemically modified by a mixture of (SWCNTs/Biomass) was applied. The fungus is used as an inactive biomass, which was selected from soil contaminated with metals. The cell walls have a large number of chemical groups such as carboxyl, sulfonate, amine, hydroxyl, carbonyl and imidazole with which may affect and intervene in the fixing of metal ions. In this assay, heavy metals ions accumulated on the GCE/SWCNTs/Biomass electrode surfaces prior to being subjected to differential pulse anodic stripping voltammetry analysis (DPASV). The resulting peak currents were linearly related to the concentrations of the metal ions. The method was optimized with respect to accumulation time, reduction time and reduction potential. The detection limits were found to be 10(-8)M and 10(-7)M for Pb2+ and Cd2+ respectively.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available