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Modified Mechanism and Properties of Water-Soluble Sodium Silicate for Oil and Gas Field
Materials Science Forum, 2015With an analysis on the structure of water-soluble sodium silicate and its polymerization, it was found that the poor stability of silicate drilling fluids lies in the relevance between the inherent nature and the pH value of sodium silicate. The modification of water-soluble sodium silicate in this paper was to improve its stability and keep the ...
Hong Xu Zhang +4 more
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Gas-Phase Formation of Water-Soluble Organic Compounds in the Atmosphere: A Retrosynthetic Analysis
Journal of Atmospheric Chemistry, 2000Atmospheric particles contain a myriad of organiccompounds, including many multifunctional,water-soluble organic compounds. Many of thesecompounds are postulated to be secondary of origin. This work investigates the possible precursors ofseveral classes of multifunctional, water-solublesecondary organic compounds by analyzing the pathwaysleading to ...
Betty K. Pun +3 more
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Industrial & Engineering Chemistry Research, 2018
Poly(hexamethylene isophthalamide) (PA6I), an amorphous polymer characterized by high temperature resistance and significant oxygen barrier performances, has been chemically modified by using the 5...
M. Vannini +3 more
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Poly(hexamethylene isophthalamide) (PA6I), an amorphous polymer characterized by high temperature resistance and significant oxygen barrier performances, has been chemically modified by using the 5...
M. Vannini +3 more
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Water-gas shift reaction in the liquid phase: Catalysis by water-soluble rhodium complexes
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 19891. A series of water-soluble rhodium complexes containing diphenyl-m-sulfophenylphosphine as ligand are synthesized. The catalytic activity of the synthesized complexes in the WGSR is studied. 2. Probable mechanistic schemes for the WGSR are proposed, including intermediates not containing halide ions.
E. G. Chepaikin +6 more
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Analytical Chemistry, 1985
Primary aliphatic amines present at trace levels in water samples were converted to imine derivatives using pentafluorobenzaldehyde. The derivatives were extracted into hexane and measured by combined high-resolution gas chromatography/mass spectrometry using multiple ion monitoring.
Michael J. Avery, Gregor A. Junk
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Primary aliphatic amines present at trace levels in water samples were converted to imine derivatives using pentafluorobenzaldehyde. The derivatives were extracted into hexane and measured by combined high-resolution gas chromatography/mass spectrometry using multiple ion monitoring.
Michael J. Avery, Gregor A. Junk
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Journal of Analytical Chemistry, 2020
We determined the nature of water-soluble sulfonic acids in acid tars taken from two storage ponds: one located at the 21 km of the M-7 Moscow–Nizhny Novgorod federal highway and another in the Kozinskoe forestry of the Balakhninsky district of Nizhny Novgorod oblast.
E. V. Zhebryakov +3 more
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We determined the nature of water-soluble sulfonic acids in acid tars taken from two storage ponds: one located at the 21 km of the M-7 Moscow–Nizhny Novgorod federal highway and another in the Kozinskoe forestry of the Balakhninsky district of Nizhny Novgorod oblast.
E. V. Zhebryakov +3 more
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Bulletin of Environmental Contamination and Toxicology, 1977
A new gas liquid chromatography (GLC) technique was devised to determine the amounts of individual water-soluble gasoline fractions (WSGFs) present in aqueous solutions. The technique described permits direct aqueous injection of water samples without the problems associated with solvent extraction techniques (JELTES and VELDINK 1967, LYSYJ and RUSSELL
W O, Berry, P J, Stein
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A new gas liquid chromatography (GLC) technique was devised to determine the amounts of individual water-soluble gasoline fractions (WSGFs) present in aqueous solutions. The technique described permits direct aqueous injection of water samples without the problems associated with solvent extraction techniques (JELTES and VELDINK 1967, LYSYJ and RUSSELL
W O, Berry, P J, Stein
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Gas-phase ammonia and water-soluble ions in particulate matter analysis in an urban vehicular tunnel
Environmental Science and Pollution Research, 2016Ammonia is a key alkaline species, playing an important role by neutralizing atmospheric acidity and inorganic secondary aerosol production. On the other hand, the NH3/NH4 (+) increases the acidity and eutrophication in natural ecosystems, being NH3 classified as toxic atmospheric pollutant.
Marcelo S, Vieira-Filho +4 more
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Analysis of the water-soluble fraction of crude oils and petroleum products by gas chromatography
Oil and Petrochemical Pollution, 1984Crude oils and petroleum products have been shown to produce qualitatively similar water soluble fractions. These were prepared from crude oils and petroleum products and were analysed using two methods of gas chromatography. A headspace technique was used to measure the more volatile hydrocarbons and a microextraction analysis was used for the less ...
Derek A.J. Murray +2 more
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A study of the surface analysis of some water‐soluble polymers by inverse gas chromatography
Surface and Interface Analysis, 2008Abstract The surface characterization of 2‐(dimethylamino)ethylmethacrylate (DMA) and 2‐( N ‐morpholino)ethylmethacrylate (MEMA) homopolymers and DMA–MEMA diblock copolymer was studied using inverse‐gas chromatography (IGC).
Ayşegül Aşkın +1 more
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