Small-size sensors for the in-field stripping voltammetric analysis of water

2001 ◽  
Vol 5 (6) ◽  
pp. 260-271 ◽  
Author(s):  
Khiena Z. Brainina ◽  
Inna V. Kubysheva ◽  
Elena G. Miroshnikova ◽  
Stanislav I. Parshakov ◽  
Yuri G. Maksimov ◽  
...  
Keyword(s):  
Voltammetric Analysis

Indicator carbon-paste electrode for voltammetric analysis

2020 ◽  
Vol 86 (2) ◽  
pp. 5-14
Author(s):  
D. M. Aronbaev ◽  
S. D. Aronbaev ◽  
G. Z. Narmaeva ◽  
D. T. Isakova
Keyword(s):  
Carbon Paste Electrode ◽  
Carbon Paste ◽  
Voltammetric Analysis ◽  
Paste Electrode

Catheter microelectrode assembly for in-vivo and in-vitro voltammetric analysis of body fluids

Talanta ◽  
1983 ◽  
Vol 30 (2) ◽  
pp. 121-123 ◽  
Author(s):  
J. Wang ◽  
L.D. Hutchins ◽  
S. Selim ◽  
L.B. Cumming
Keyword(s):  
Body Fluids ◽  
Voltammetric Analysis

scholarly journals Spectroscopic and Voltammetric Analysis of Platinum Group Metals in Road Dust and Roadside Soil

Environments ◽  
2018 ◽  
Vol 5 (11) ◽  
pp. 120 ◽  
Author(s):  
Charlton van der Horst ◽  
Bongiwe Silwana ◽  
Emmanuel Iwuoha ◽  
Vernon Somerset
Keyword(s):  
Human Health ◽  
Limit Of Detection ◽  
Anthropogenic Activities ◽  
Stripping Voltammetry ◽  
Differential Pulse ◽  
Platinum Group Metals ◽  
Adsorptive Stripping Voltammetry ◽  
Good Precision ◽  
Voltammetric Analysis ◽  
Voltammetric Methods

The emission of toxic compounds by increasing anthropogenic activities affects human health and the environment. Heavy road traffic and mining activities are the major anthropogenic activities contributing to the presence of metals in the environment. The release of palladium (Pd), platinum (Pt), and rhodium (Rh) into the environment increases the levels of contamination in soils, road sediments, airborne particles, and plants. These Pd, Pt, and Rh in road dusts can be soluble and enter aquatic environment posing a risk to environment and human health. The aim of this study is to determine the levels of Pd, Pt, and Rh with spectroscopy and voltammetric methods. Potential interferences by other metal ions (Na(I), Fe(III), Ni(II), Co(II)) in voltammetric methods have also been investigated in this study. At all the sampling sites very low concentrations of Pd, Pt, and Rh were found at levels that range from 0.48 ± 0.05 to 5.44 ± 0.11 ng/g (dry weight (d.wt)) for Pd(II), with 17.28 ± 3.12 to 81.44 ± 3.07 pg/g (d.wt) for Pt(II), and 14.34 ± 3.08 to 53.35 ± 4.07 pg/g (d.wt) for Rh(III). The instrumental limit of detection for Pd, Pt, and Rh for Inductively Coupled Plasma Quadrupole-based Mass Spectrometry (ICP-QMS) analysis was found to be 3 × 10−6 µg/g, 3 × 10−6 µg/g and 1 × 10−6 µg/g, respectively. In the case of voltammetric analysis the instrumental limit of detection for Pd(II), Pt(II), and Rh(III) for differential pulse adsorptive stripping voltammetry was found to be 7 × 10−8 µg/g, 6 × 10−8 µg/g, and 2 × 10−7 µg/g, respectively. For the sensor application, good precision was obtained due to consistently reproduced the measurements with a reproducibility of 6.31% for Pt(II), 7.58% for Pd(II), and 5.37% for Rh(III) (n = 10). The reproducibility for ICP-QMS analysis were 1.58% for Pd(II), 1.12% for Pt(II), and 1.37% for Rh(III) (n = 5). In the case of repeatability for differential pulse adsorptive stripping voltammetry (DPAdSV) and ICP-QMS, good standard deviations of 0.01 for Pd(II); 0.02 for Pt(II), 0.009 for Rh(III) and 0.011 for Pd, 0.019 for Pt and 0.013 for Rh, respectively.

Electrochemical Analysis of Solids. A Review

2002 ◽  
Vol 67 (2) ◽  
pp. 163-208 ◽  
Author(s):  
Tomáš Grygar ◽  
Frank Marken ◽  
Uwe Schröder ◽  
Fritz Scholz
Keyword(s):  
Mass Measurement ◽  
Analytical Techniques ◽  
Electrochemical Analysis ◽  
Composite Electrodes ◽  
Carbon Paste ◽  
Voltammetric Analysis ◽  
Organic Solids ◽  
Force Microscopy ◽  
Sensitivity Specificity ◽  
Constituent Elements

The topic of the review is the electrochemical analysis of solids aimed to identify or determine their phase or elemental composition, analyse the composition of solid mixtures, characterise their electrochemistry-related properties and analyse the redox state of the constituent elements. The ways of the electrode preparation are discussed with a special attention paid to compact and composite electrodes including carbon-paste electrodes, and direct immobilisation of powders on a working electrode. Examples are given of simultaneous electrochemical measurements combined with X-ray diffraction, optical or atomic force microscopy, and mass measurement by quartz microbalance. The state-of-art of voltammetric analysis of inorganic and organic solids achieved in the last two decades is systematically reviewed with the aim to find cases, when electrochemistry can compete successfully with other analytical techniques as for sensitivity, specificity, and sample consumption. Electrochemical methods are shown to be a perspective tool for redox analysis of catalysts, combined elemental and phase analysis of inorganic pigments and minerals, characterisation of solid solutions, metalloorganic and organic solids. A review with 196 references.

scholarly journals THE USE OF COPPER INDICATOR ELECTRODES IN VOLTAMMETRIC ANALYSIS

2016 ◽  
Vol 11 (5) ◽  
pp. 26-41 ◽  
Author(s):  
L. Yu. Martynov ◽  
O. A. Naumova ◽  
N. K. Zaytsev ◽  
I. Yu. Lovchinovsky
Keyword(s):  
Electrochemical Sensors ◽  
Chemical Properties ◽  
Electrochemical Analysis ◽  
Voltammetric Analysis ◽  
Advantages And Disadvantages ◽  
Copper Electrodes ◽  
Inorganic Substances ◽  
Physico Chemical ◽  
Recent Trends ◽  
Solid Electrodes

The review describes the application of solid electrodes based on copper for voltammetric analysis of major classes of organic and inorganic substances over the last fifty years. Despite the fact that there are many reviews of individual solid electrodes this review offers the first comprehensive report on all forms of copper electrodes. The advantages and disadvantages of copper electrodes in comparison with electrodes made of other metals are discussed. Varieties of copper electrodes, their basic physico-chemical properties and some specific characteristics of their surface are described. The electrochemical behavior of copper in aqueous solutions and electrocatalytic mechanisms of transformations of matter on its surface are reported. Examples of the use of electrochemical copper sensors for flow-injection analysis and liquid chromatography are given. Recent trends of the use of copper micro- and nanostructured electrodes in electrochemical analysis are reviewed. The prospects of using copper as a material for the creation of new electrochemical sensors are shown.

scholarly journals Selection of reagents for voltammetric analysis of samples containing simultaneously Al(III), Ga(III), In(III), Sc(ІІІ) or REE(ІІІ)

2015 ◽  
Vol 8 (1/2) ◽  
pp. 10-15 ◽  
Author(s):  
Liliya DUBENSKA ◽  
◽  
Sofija TVORYNSKA ◽  
Solomiya PYSAREVSKA ◽  
Julija RAK ◽  
...  
Keyword(s):  
Voltammetric Analysis ◽  
Selection Of
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