Manganese Detection with a Metal Catalyst Free Carbon Nanotube Electrode: Anodic versus Cathodic Stripping Voltammetry.
Anodic stripping voltammetry (ASV) and cathodic stripping voltammetry (CSV) were used to determine Mn concentration using metal catalyst free carbon nanotube (MCFCNT) electrodes and square wave stripping voltammetry (SWSV). The MCFCNTs are synthesized using a Carbo Thermal Carbide Conversion method which results in a material that does not contain residual transition metals. Detection limits of 120 nM and 93 nM were achieved for ASV and CSV, respectively, with a deposition time of 60 s. CSV was found to be better than ASV in Mn detection in many aspects, such as limit of detection and sensitivity. The CSV method was used in pond water matrix addition measurements.
Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221-0172, USA.
Wei
W
Yue
Adam
A
Bange
Bill L
BL
Riehl
Bonnie D
BD
Riehl
Jay M
JM
Johnson
Ian
I
Papautsky
William R
WR
Heineman
Anodic stripping voltammetry; Cathodic stripping voltammetry; Manganese; Metal catalyst free carbon nanotube electrode