Vapor-phase chromatographic method for determination of organochlorine compounds in oil

2021 ◽  
pp. 6-15
Author(s):  
A.L. Pakhomov ◽  
◽  
E.A. Chudin ◽  
V.E. Stolyarov ◽  
N.A. Eremin ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Chromatographic Method ◽  
Organochlorine Compounds

scholarly journals Determination of Organic Chlorides in Crude Oil of Different Composition by the Chromatographic Method Using a Vapor-Phase Sampling Device

2021 ◽  
Vol 136 (5) ◽  
pp. 53-58
Author(s):  
V. V. Korenev ◽  
◽  
O. V. Zhdaneev ◽  
V. P. Tomin ◽  
P. S. Reshetov ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Crude Oil ◽  
Vapor Phase ◽  
Chromatographic Method ◽  
Phase Method ◽  
Sampling Device ◽  
Phase Sampling ◽  
Real Objects ◽  
Line Analysis

There are researches has been carried out on real objects (crude oils with a high content of paraffins, asphaltenes, naphthenes and resins) in order to determine the correctness and boundary conditions for the applicability of the gas chromatographic vapor-phase method for determining the concentration of organic chlorides in crude oil for performing in-line analysis. The application of this technique, regardless of the type and composition of crude oil, will make it possible to quickly determine the presence of organic chlorides in crude oil, which, in turn, prevents contaminated oil from entering pipelines and refineries.

Determination of the activity coefficients of methanol and ethanol in benzene solutions by gas chromatography

1967 ◽  
Vol 45 (24) ◽  
pp. 3089-3095 ◽  
Author(s):  
Peter Pollak ◽  
G. C. B Cave
Keyword(s):  
Gas Chromatography ◽  
Quantitative Analysis ◽  
Activity Coefficients ◽  
Vapor Phase ◽  
Chromatographic Method ◽  
Low Concentrations ◽  
Gas Chromatographic Method

A rapid gas-chromatographic method is described for the quantitative analysis of the equilibrium vapor phase over a solution. A vapor pump has been designed for the purpose and is described. The method should be particularly useful at low concentrations of volatile solutes, alone or in mixtures. As an example of the application of the method, the vapor concentrations of methanol and of ethanol over benzene solutions at 25 °C have been measured. The precision of the data is also reported. The activity coefficients of the alcohols in the benzene solutions were calculated.

A Gas Chromatographic Method for the Determination of Lactic Acid in Blood

1966 ◽  
Vol 12 (9) ◽  
pp. 559-569 ◽  
Author(s):  
John Savory ◽  
Alex Kaplan
Keyword(s):  
Lactic Acid ◽  
Acid Concentration ◽  
Vapor Phase ◽  
Chromatographic Method ◽  
Lactic Acid Concentration ◽  
Blood Samples ◽  
Ceric Sulfate ◽  
Gas Chromatographic Method ◽  
Enzymatic Methods

Abstract A method for the determination of lactic acid concentration in blood by gas chroma tography is described. Lactic acid in a protein-free filtrate is oxidized by ceric sulfate to acetaldehyde. The latter compound is introduced into the gas chroma tographic column by vapor phase injection, and is quantitatively measured within 3 min. The method is specific, precise, and not affected by compounds that may interfere with the determination of lactic acid by colorimetric or enzymatic methods. A method for preserving blood samples up to 24 hr. without change in lactic acid concentration is also described.

Validated high-performance thin-layer chromatographic method for the determination of dibenzyl cyclooctadiene lignans fromSchisandra grandiflora

2014 ◽  
Vol 27 (6) ◽  
pp. 460-465 ◽  
Author(s):  
Katragunta Kumar ◽  
Bokka Ramesh ◽  
Vadaparthi Rao ◽  
Borra Poornima ◽  
Vanka Sarma ◽  
...  
Keyword(s):  
Thin Layer ◽  
High Performance ◽  
Chromatographic Method
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