Determination of cadmium(II) by square wave anodic stripping voltammetry using bismuth–antimony film electrode

Determination of trace levels of Cd(II) in tap water samples by anodic stripping voltammetry with an electrografted boron-doped diamond electrode

“…The ions were considered to interfere seriously when they gave a current signal change of more than 5%. The experimental results for typical ions present 13 . However, the influence of weakly interfering ions can be corrected by standard addition method.…”

“…Alternative environmentally friendly electrode materials are therefore required 13 . Several new types of mercury-free electrodes have recently been developed for sensitive metal determinations, including bismuth film electrodes 13,14 , gold-coated electrodes 15,16 , silver electrodes 17,18 , glassy carbon electrodes 19 , carbon paste electrodes [20][21][22] , carbon nanotube electrodes 23 , or screen-printed carbon electrodes 24 . Boron-doped diamond (BDD) electrodes can be applied in a variety of areas due to their superior properties, including extreme robustness with a low level of background interference, less adsorption of polar molecules, and wide potential window in aqueous media 2,25 .…”

Sensitive Stripping Determination of Cadmium(II) and Lead(II) on Disposable Graphene Modified Screen‐Printed Electrode

“…It was found that when the deposition potential shifts from À1.0 V to À1.3 V, the stripping peak areas for Cd 2 + and Pb 2 + increased due to the enhanced kinetics [33] and the peak areas for Cd 2 + and Pb 2 + reached a maximum at À1.3 V. When the deposition potential was more negative than À1.3 V, a decrease on the response was observed for Cd 2 + and Pb 2 + due to the interference of hydrogen. The hydrogen bubbles might damage the metal alloys which are deposited on the electrode surface to affect the sensitivity of the electrode [34]. Thereby, in consideration of the good sensitivity for both Cd 2 + and Pb 2 + , the accumulation potential of À1.3 V was chosen for the subsequent study.…”

Study on erythrosine-phen-Cd(II) systems by resonance Rayleigh scattering, absorption spectra and their analytical applications

“…The method research for the determination of cadmium ion also has the vital significance. Recently, the methods for determining Cd(II) mainly include spectrophotometry [5][6][7], atomic absorption spectrometry (AAS) [8], fluorospectrophotometry [9,10], inductively coupled plasma mass spectrometry (ICP-MS) [11], high performance liquid chromatography (HPLC) [12], electrochemical method [13][14][15][16], etc. Each method has its own advantages and disadvantages.…”

“…Fluorospectrophotometry [9,10] is inexpensive, but it refers to tedious synthetic procedures [9] or the sensitivity is lower [10]. Electrochemical methods [13][14][15][16] posses sensitivity and selectivity, whereas the modification of the electrode made the analysis time-consuming. Here in this paper, simple and quick methods of molecular spectrometry including resonance Rayleigh scattering (RRS), dual-wavelength overlapping resonance Rayleigh scattering (DWO-RRS), second order scattering (SOS), frequence doubling scattering (FDS) and spectrophotometric method were developed to determine Cd(II) with high sensitivity and good selectivity.…”