Determination of Diffusion Coefficients of In, Cd, Hf and Pu Hydrated Ions in Aqueous Solutions Using the Method of Horizontal Zone Electrophoresis in Free Electrolyte

2001 ◽  
pp. 67-70 ◽  
Author(s):  
G. A. Bojikov ◽  
P. I. Ivanov ◽  
A. N. Priemyshev ◽  
G. D. Bontchev ◽  
M. V. Milanov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Diffusion Coefficients ◽  
Hydrated Ions ◽  
Zone Electrophoresis

Determination of pKa Values of Diclofenac and Ibuprofen in Aqueous Solutions by Capillary Zone Electrophoresis

2019 ◽  
Vol 29 (1) ◽  
pp. 443-448 ◽  
Author(s):  
Alicia G. Vicenteno-Vera ◽  
Tania Campos-Hernandez ◽  
Maria T. Ramirez-Silva ◽  
Annia Galano ◽  
Alberto Rojas-Hernandez
Keyword(s):  
Aqueous Solutions ◽  
Capillary Zone Electrophoresis ◽  
Pka Values ◽  
Zone Electrophoresis ◽  
Capillary Zone

scholarly journals Determination of the Diffusion Coefficients of CuCl2, FeCl3, CuSO4, and Fe2(SO4)3 in Aqueous Solutions

1990 ◽  
Vol 31 (12) ◽  
pp. 1065-1071 ◽  
Author(s):  
Zhi-chun Wu ◽  
Yasuhiro Awakura ◽  
Satoru Ando ◽  
Hiroshi Majima
Keyword(s):  
Aqueous Solutions ◽  
Diffusion Coefficients

Electrophoretic method for the determination of diffusion coefficients of ions in aqueous solutions*

2003 ◽  
Vol 258 (3) ◽  
pp. 645-648 ◽  
Author(s):  
G. A. Bozhikov ◽  
G. D. Bontchev ◽  
P. I. Ivanov ◽  
A. N. Priemyshev ◽  
O. D. Maslov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Diffusion Coefficients ◽  
Electrophoretic Method

LUMINESCENT DETERMINATION OF SUGAR IN NATURAL HONEY

2020 ◽  
Vol 0 (4) ◽  
pp. 29-32
Author(s):  
B.M. GAREEV ◽  
◽  
A.M. ABDRAKHMANOV ◽  
G.L. SHARIPOV ◽  
◽  
...  
Keyword(s):  
Quantum Dots ◽  
Laboratory Test ◽  
Aqueous Solutions ◽  
Analytical Method ◽  
Sugar Content ◽  
Carbon Quantum Dots ◽  
Photoluminescence Intensity ◽  
Sucrose Content ◽  
Natural Honey

The photoluminescence of carbon quantum dots synthesized from natural honey and mixtures of honey and sugar has been studied. An increase in the sugar content leads to a decrease in the photoluminescence intensity without changing the shape of the luminescence spectrum of these quantum dots aqueous solutions, which is associated with a decrease in the yield of their synthesis in the sugar presence. The discovered effect can be used to detect sugar in honey. When examining five different market samples of flower honey using this method, two of them showed a significant decrease in the photoluminescence intensity. A laboratory test for compliance with GOST 19792-2017 Standard requirements established an excess of the sucrose content in these samples. Luminescent determination of sugar in honey does not require complicated equipment and can be used to develop a new analytical method for determining the sugar content in counterfeit natural honey.

The Calculation of Turbulent Diffusion Coefficients in Aquatic Ecosystems

2019 ◽  
Vol 70 (11) ◽  
pp. 3903-3907
Author(s):  
Galina Marusic ◽  
Valeriu Panaitescu
Keyword(s):  
Transport Equation ◽  
Turbulent Diffusion ◽  
Diffusion Coefficients ◽  
Aquatic Ecosystems ◽  
Specific Area ◽  
Left Bank ◽  
The Right ◽  
Prut River

The paper deals with the issues related to the pollution of aquatic ecosystems. The influence of turbulence on the transport and dispersion of pollutants in the mentioned systems, as well as the calculation of the turbulent diffusion coefficients are studied. A case study on the determination of turbulent diffusion coefficients for some sectors of the Prut River is presented. A new method is proposed for the determination of the turbulent diffusion coefficients in the pollutant transport equation for specific sectors of a river, according to the associated number of P�clet, calculated for each specific area: the left bank, the right bank and the middle of the river.

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