Plasma electrochemistry: voltammetry in a flame plasma electrolyte

2013 ◽  
Vol 15 (4) ◽  
pp. 1108-1114 ◽  
Author(s):  
Atif Elahi ◽  
Daren J. Caruana
Keyword(s):  
Plasma Electrolyte ◽  
Flame Plasma

Dynamic Electrochemistry in Flame Plasma Electrolyte

2012 ◽  
Vol 51 (26) ◽  
pp. 6350-6355 ◽  
Author(s):  
Atif Elahi ◽  
Toks Fowowe ◽  
Daren J. Caruana
Keyword(s):  
Plasma Electrolyte ◽  
Flame Plasma

Dynamic Electrochemistry in Flame Plasma Electrolyte

2012 ◽  
Vol 124 (26) ◽  
pp. 6456-6461
Author(s):  
Atif Elahi ◽  
Toks Fowowe ◽  
Daren J. Caruana
Keyword(s):  
Plasma Electrolyte ◽  
Flame Plasma

Electrochemical redox potential in flame plasma

2002 ◽  
Vol 4 (10) ◽  
pp. 780-786 ◽  
Author(s):  
Daren J. Caruana ◽  
Sean P. McCormack
Keyword(s):  
Redox Potential ◽  
Flame Plasma ◽  
Electrochemical Redox

Expert-analytical approach to assessing activity of vitamin D based on determination of vitamin D associated links by indicators of water-electrolyte metabolism

2021 ◽  
Vol 1 (30) ◽  
pp. 24-29
Author(s):  
A. V. Solomennikov ◽  
S. L. Bogdanova ◽  
A. I. Tyukavin ◽  
N. A. Arsenyev
Keyword(s):  
Vitamin D ◽  
Structural Changes ◽  
Laboratory Data ◽  
Statistical Processing ◽  
Individual Case ◽  
Bone Diseases ◽  
Electrolyte Metabolism ◽  
Functional Connections ◽  
Plasma Electrolyte ◽  
Analytical System

The authors used the proposed method of mathematical and statistical processing of laboratory data (indicators of electrolyte metabolism and osteomarkers) of archived data of 82 patients with various bone diseases aged 9.90 ± 0.55 years compared the structural changes in the panel of ratios of individual electrolytes and the influence of individual indicators on them in personalized data, on the basis of which a conclusion was made about a single mechanism of coinciding influences in the exchange of bone tissue. At the same time, it was found that the complex of associated links detected by the vitamin influence on the panel of electrolyte ratios may differ signifcantly in some cases from each other. These differences consisted in highly pronounced differences in the activity of vitamin D in relation to various components of osteosynthesis and osteolysis, which are described in the modern literature. On this basis, the authors conclude that the used method (analytical system) allows to identify the functional connections of the dynamics of the indicator of vitamin D in individual cases with the dynamics of other indicators of bone, which signifcantly expands the informativeness of the results of laboratory examination of the patient in determining the leading systems the implementation of functional activity of the vitamin. The presented results justify the possibility of creating and describing different images of vitamin D-related changes in the plasma electrolyte composition, followed by their use in the identifcation of certain disorders of calcium metabolism and/or evaluating the effectiveness of the therapy used in each individual case.

scholarly journals APPLICATION OF PLASMA-ELECTROLYTE COATINGS ON TITANIUM WITH REFRACTORY METALS FOR DETOXIFICATION OF ENVIRONMENTS FROM POLLUTING SUBSTANCES

2021 ◽  
pp. 96-102
Author(s):  
Mykola Sakhnenko ◽  
Serhii Indykov ◽  
Hanna Karakurkchi
Keyword(s):  
Photocatalytic Activity ◽  
Low Cost ◽  
Autonomous Systems ◽  
Quantitative Composition ◽  
High Catalytic Activity ◽  
Catalytic Layer ◽  
Oxide Systems ◽  
Metal Compounds ◽  
Anthropogenic Pollutants ◽  
Plasma Electrolyte

Based on the review of the peculiarities of the photocatalytic processes, the peculiarities of the catalytic action of oxide systems based on titanium dioxide are determined. It is shown that TiO2 is one of the most chemically and thermally stable and non-toxic inorganic oxides of semiconductors, whose photocatalytic activity is manifested by irradiation with ultraviolet part of the spectrum (λ 320–400 nm) and allows the oxidation of a significant amount of toxic agents to water and carbon dioxide. The essence of the photocatalytic process of oxidation of toxicants under the action of UV radiation on the TiO2 surface is considered. The proposed technology of photocatalytic detoxification of contaminants is economically available, environmentally friendly and allows its widespread use, in particular for autonomous systems, including dual purpose. It is established that the main requirements for materials for photocatalysis are their chemical and biological inertness, photocatalytic stability and activity, low cost. It is shown that the most rational technological form of the photocatalyst is the application (synthesis) of the catalytic layer on structured metal substrates, in particular titanium alloys. It is proved that these catalytic oxide systems can be effectively formed by the method of plasma-electrolyte oxidation in aqueous electrolytes with the addition of dopant metal compounds that increase the photocatalytic activity of the obtained heterooxide systems. It is proposed to use tungsten oxides of variable valence as the target additive. The kinetic regularities of the process of plasma-electrolytic oxidation of titanium VT1-0 in a diphosphate-borate electrolyte with the addition of tungstates have been studied. It is shown that in an electrolyte of this type at a current density of 1.0 A/dm2 in the galvanostatic mode for 30 min a uniform coating of TiO2·WxOy with a tubular torus-like structure and tungsten content of 2.5–7.5 wt.% is formed. The predicted quantitative composition of the heteroxide layer in combination with the surface morphology creates the preconditions for high catalytic activity of the synthesized coating for detoxification of media from anthropogenic pollutants.

A Micropuncture Study of Kidney Function in the River Lamprey Lampetra Fluviatilis Adapted to Sea Water

1980 ◽  
Vol 88 (1) ◽  
pp. 239-248
Author(s):  
A. G. LOGAN ◽  
R. MORRIS ◽  
J. C. RANKIN
Keyword(s):  
Fresh Water ◽  
Kidney Function ◽  
Sea Water ◽  
Chloride Ions ◽  
Water Reabsorption ◽  
Plasma Electrolyte ◽  
River Lamprey ◽  
Micropuncture Study ◽  
Urine Composition ◽  
High Concentrations

Micropuncture techniques have been used to investigate kidney function in lampreys adapted to hyperosmotic media. Plasma electrolyte concentrations were maintained well below corresponding concentrations in the external environment. Urine composition was variable, but generally showed high concentrations of magnesium, sulphate and chloride ions. Lampreys in 50% sea water produced urine which was hypo or iso-osmotic to plasma, whereas those in 100% sea water produced hyperosmotic urine. Urine flow rate in 50% sea water was one tenth of that in fresh water, due to a reduction in filtration rate and an increase in water reabsorption by the kidney. As in fresh water, little if any filtered water was reabsorbed by the proximal segment. Almost 90% of filtered water was reabsorbed by the kidney of 100% sea water lampreys and most of this must have occurred in the distal and collecting segments.

Sign in / Sign up

Export Citation Format

Share Document