scholarly journals Effects of modified fly ash doped carbon paste electrodes and metal film electrodes on the determination of trace cadmium(ii) by anodic stripping voltammetry

RSC Advances ◽  
2021 ◽  
Vol 11 (28) ◽  
pp. 17240-17248
Author(s):  
Jinying Hou ◽  
Yuping Fan ◽  
Xiaomin Ma ◽  
Xianshu Dong ◽  
Suling Yao
Keyword(s):  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Paste ◽  
Detection Range ◽  
Carbon Paste Electrodes ◽  
Lower Detection Limit ◽  
Lower Detection ◽  
Trace Cadmium ◽  
Modified Fly Ash

A wider detection range and a lower detection limit were obtained due to the introduction of CTAB and Bi.

Gold-Plated Carbon Paste Electrodes for Anodic Stripping Determination of Arsenic

2000 ◽  
Vol 65 (6) ◽  
pp. 1035-1046 ◽  
Author(s):  
Petr Chadim ◽  
Ivan Švancara ◽  
Boris Pihlar ◽  
Karel Vytřas
Keyword(s):  
Deposition Time ◽  
Supporting Electrolyte ◽  
Anodic Stripping Voltammetry ◽  
Stripping Voltammetry ◽  
Carbon Paste ◽  
Carbon Paste Electrodes ◽  
Experimental Parameters ◽  
Anodic Stripping ◽  
Interference Studies

The applications of gold-plated carbon paste electrodes in anodic stripping voltammetry have been studied in an effort to develop a simple and effective method for the determination of arsenic in water samples. The investigations performed included the choice of supporting electrolyte composition, the optimisation of important experimental parameters, search for appropriate procedure to reduce As(V) to As(III), and some tests of practical applicability of the method, including interference studies. Under optimised conditions, the signal of As was linear within 5-50 μg l-1 with a detection limit of about 1 μg l-1 As (deposition time 10 min). Common elements or ions did not interfere except for Cu(II). The analytical performance of the method has been tested in recovery measurements with model solutions.

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