Qualitative and quantitative research on pesticide chemical admixture in liquids

Mikhalieva, Maryna; Mykyychuk, Mykola; Бубела, Тетяна; Boyko, Taras; Malyk, Olha

doi:10.1109/idaacs.2013.6662644

Cited by 3 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4. It is established that the modified electrode of carbon electrodes achieves the amplification of the electrical signal in the presence of copper salts in the liquid, which allows the measured value of the reactive component of conductivity, at a certain frequency, to quickly and selectively control the presence and small concentrations (from thousandths of g/l) of vitriol in a multicomponent fluid of unknown composition [4][5][6][7][8][9][10]. Table 1 illustrates the measurement results, which confirm the points 1 and 2 above.…”

Section: Resultsmentioning

confidence: 99%

Chemical Measurements by Electrical Parameters to Control the Composition of Multicomponent Liquids

Parashchuk

Mikhalieva

2019

Technology transfer: fundamental principles and innovative tech

Self Cite

View full text Add to dashboard Cite

The authors substantiated the relevance of scientific studies of the electrical properties of multicomponent liquids. Such liquids are real objects that require stock control during operation. This applies to many areas of human activity: environmental monitoring, the chemical and food industries, medicine, and the like. Laboratory methods are unable to meet the following requirements. The electrical properties of substances, including liquids, have been well studied by scientists. In addition, the high level of modern experimental technology allows to combine theoretical and practical achievements, in this case chemical and physical-electrical sciences. In the theoretical provisions regarding the electrical methods for the study of the composition of liquids, the authors, based on the classical knowledge of dielectric conductivity physics, argue for their use for applied chemical measurements. After all, physico-chemical electrical measurements have long been used for the study of two-component standard solutions. The authors propose to improve such measurements and use them for multicomponent liquids. At the same time, it is proposed to use the developed primary converters and a new informative parameter - complex conductivity components (admittance). On the basis of the obtained experimental results, the research conditions are formulated. The measuring system consists of a primary capacitive transducer (carbon electrodes in vessels with the test liquid); multi-frequency current generator (RLC meter) and computer. The dependences of the values of the complex components of conductivity on the frequency of the electromagnetic field between the electrodes for liquids with dissolved substances of different chemical nature and concentrations were investigated. Some individual properties have been established for such substances, which allow to develop methods and methods of operational control of the composition of multicomponent liquids by electrical parameters. The article discusses the scientific and practical results of research and the advantages of the developed methods and methods of composition control for real liquids. Also, some of the scientific facts obtained allow to further develop and develop methods of electro-chemical research with a wider range of constituents, for low concentrations and without complex laboratory manipulations.

show abstract

Section: Resultsmentioning

confidence: 99%

Chemical Measurements by Electrical Parameters to Control the Composition of Multicomponent Liquids

Parashchuk

Mikhalieva

2019

Technology transfer: fundamental principles and innovative tech

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus the problem of creating and evolving the methods free from the above mentioned disadvantages is of significance. An admittance method, one of the most promising, is based on the measurement of active G (conductance) and reactive B (susceptance) components of complex conductivity Y [3,4].…”

Section: Introduction Results Of Investigationmentioning

confidence: 99%

Admittance Monitoring of Nonelectric Nature Objects

Бубела

Stolyarchuk

Pohodylo

et al. 2014

PAR

Self Cite

View full text Add to dashboard Cite

Problems of development the methods of monitoring the quality indices of non-electric nature objects are in the highlight of the paper. The chain of experimental investigations of capacitance primary transducers in terms of their time stability (durability) and manufacturing material efficiency has been undertaken. The nature of frequency dependence of admittance on the temperature and different solution concentrations has been researched. Due to the results of investigations the method of identifying the general salt concentration in soil is proposed.

show abstract

Simulating Error Due to Acquired Thermoelectric Inhomogeneity

Li,

Chen

2024

Sensors

View full text Add to dashboard Cite

The best method to prevent error due to inhomogeneity is to use a new thermocouple design—the thermocouple with controlled temperature field (TCTF). It uses the auxiliary furnace to control the temperature field along its legs. Such a design allows setting and maintaining the temperature field along the thermocouple (TC) legs for the sensor. Error due to inhomogeneity of TCs cannot appear in a stable temperature field. However, the auxiliary furnace and TCs, to control the temperature field, have errors, so the temperature field along the main TC is maintained with some error. This leads to residual error due to acquired inhomogeneity of the TCTF. We constructed the mathematical models to fit the experimental data of error due to drift for the type K TC. The authors used the constructed models to study error due to inhomogeneity of the TCTF and the conventional type K TC under considerable changes in temperature field. The main results of modelling are as follows: (i) if the changes in temperature field exceed 7 °C, error due to inhomogeneity of the TCTF is lesser than that of the conventional TC; (ii) the maximum error due to inhomogeneity of the conventional type K TC is 10.75 °C; (iii) the maximum error due to inhomogeneity of the TCTF is below 0.2 °C.

show abstract

Qualitative and quantitative research on pesticide chemical admixture in liquids

Cited by 3 publications

References 2 publications

Chemical Measurements by Electrical Parameters to Control the Composition of Multicomponent Liquids

Chemical Measurements by Electrical Parameters to Control the Composition of Multicomponent Liquids

Admittance Monitoring of Nonelectric Nature Objects

Simulating Error Due to Acquired Thermoelectric Inhomogeneity

Contact Info

Product

Resources

About