Investigation of Technological Operations Affecting the Determination of Concentration of Ionol Additive in Insulating Oil in High-Voltage Equipment [PDF]
Ionol oxidation inhibitor level control is included into normative indicators list for diagnostics of internal insulation condition of any oil-filled high voltage device.
Korobeynikov S.M., Lyutikova M.N.
doaj +3 more sources
Effect of ionol extraction temperature onto its gas chromatographic detection at transformer oil
The gas chromatography used for detecting antioxidizing additive ionol at transformer oil presence helps to ensure reliable operation of oil-filled electrical equipment. Changes in the ionol preliminary extraction temperature do affect the reliability of
Sergiy V. Zaitsev
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On the feasibility of monitoring the content of phenolic compounds in transformer oil
It is known that in order to restrain the process of oxidation of transformer oil, and, accordingly, to extend its service life, an antioxidant additive ionol is added to it.
M. N. Lyutikova +4 more
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Bactrocera latifrons (Hendel) (Diptera: Tephritidae) is a pest fruit fly species native to Oriental Asia which has invaded and established in Hawaii and Tanzania and has been recovered in detection trapping in California.
Grant T. McQuate +2 more
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3-Oxo-α-ionol ethyl carbonate, a precursor of megastigmatrienones was prepared by reduction of α-ionone to α-ionol, followed by esterification with ethyl chloroformate and then by oxidation with t-butyl chromate. The total yield was about 23%.
Yang H +5 more
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The problem of determining the antioxidant additive in transformer oil by chromatographic methods [PDF]
THE PURPOSE. Transformer oil is widely used in high-voltage electrical equipment and acts as a dielectric and also as a cooling medium. It consists of a complex mixture of hydrocarbon compositions with various impurity compounds.
Duy Hung Nguyen, V. F. Novikov
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Determination of carbonyl compounds and ionol in transformer oil by IR spectrometry [PDF]
В настоящее время трансформаторное масло наиболее широко используют как жидкий диэлектрик в высоковольтном оборудовании и особенно в силовых трансформаторах.
Muratova, V. M. +7 more
core +1 more source
Characterization of Volatile Organic Compounds and Aroma Sensory Properties in Yunnan Cigar. [PDF]
To characterize volatile organic compounds (VOCs) and aromatic sensory properties in Yun cigar, 27 samples from four origins were analyzed using SPME–HS–GC/MS and sensory analysis. The investigation results were analyzed using principal component analysis (PCA), Fisher linear discriminant analysis (LDA), and Pearson correlation analysis.
Wu Y +10 more
europepmc +2 more sources
The synthesis and the antioxidant activity of 1-phenoxymethyl-4-aryl-5,6,7,8-tetrahydro-2a,4a,8a-triazacyclopenta[cd]azulene-3-carboxylic (or carbothionic) acid derivatives [PDF]
New 1-phenoxymethyl-4-aryl-5,6,7,8-tetrahydro-2а,4a,8a-triazacyclopenta[cd]azulene-3-carboxylic (or carbothionic) acid derivatives have been designed, synthesized and evaluated for their in vitro antioxidant activity under conditions of the artificial ...
Sergii Demchenko +7 more
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Environmentally friendly regeneration of used energy oils [PDF]
The article covers the problem of regeneration of used petroleum oils, i.e., transformer, turbine and compressor oils in order to restore their physical and chemical properties and return them for their reuse for their intended purpose.
Aliev Abror +4 more
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