Routine Separation and Determination of Total Saturated Hydrocarbons in Heavy Petroleum Samples by Adsorption Chromatography.

1964 ◽  
Vol 36 (1) ◽  
pp. 128-132 ◽  
Author(s):  
L. R. Snyder ◽  
W. F. Roth
Keyword(s):  
Adsorption Chromatography ◽  
Saturated Hydrocarbons ◽  
Heavy Petroleum

Comparison of two different multidimensional liquid–gas chromatography interfaces for determination of mineral oil saturated hydrocarbons in foodstuffs

2012 ◽  
Vol 405 (2-3) ◽  
pp. 1077-1084 ◽  
Author(s):  
Giorgia Purcaro ◽  
Mariosimone Zoccali ◽  
Peter Quinto Tranchida ◽  
Laura Barp ◽  
Sabrina Moret ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Mineral Oil ◽  
Saturated Hydrocarbons

scholarly journals QSPR model for the forecast of dynamic viscosity of arenas by the topological characteristics of molecules

2020 ◽  
Vol 62 (6) ◽  
pp. 1-6
Author(s):  
Mikhail Yu. Dolomatov ◽  
◽  
Timur M. Aubekerov ◽  
Oleg S. Koledin ◽  
Ella A. Kovaleva ◽  
...  
Keyword(s):  
Dynamic Viscosity ◽  
Wiener Index ◽  
Test Sample ◽  
Coefficient Of Determination ◽  
Saturated Hydrocarbons ◽  
Qspr Model ◽  
Proposed Model ◽  
Chemical Factors ◽  
Topological Characteristics

Prediction of the dynamic viscosity of saturated hydrocarbons vapors is an important step in the calculation of various processes and apparatuses in chemical technology. In order to quickly determine the dynamic viscosity without resorting to the use of expensive equipment, methods of mathematical modeling are currently used. To predict the dynamic viscosity of saturated arenas vapors, a nonlinear multivariate regression model QSPR is proposed. The model associates with a dynamic viscosity a set of descriptors – the topological characteristics of molecular graphs: the Randic index, the Wiener index, and also the functions of the eigenvalues of the topological matrix of the molecule, which reflect the main structural and chemical factors, such as branching, length of the carbon skeleton and energy parameters of molecules, for example, Hückel’s perturbation spectrum of molecules, as well as affecting dynamic viscosity. The objects of research used arenas. The studied sample included 40 hydrocarbons of a number of arenas. The proposed model adequately describes the dynamic viscosity of saturated arenas vapors. The coefficient of determination of the model is 0.986. The average absolute and relative error for the test sample of HF is -2.46⋅10-7 cP and 1.83%, respectively. The model is applicable for engineering and scientific forecasts of the dynamic viscosity of various saturated arenas vapors.

Etude des mouvements de molécules linéaires en phase liquide par analyse du profil des bandes d'absorption infrarouge.: II. Bande v3 du sulfure de carbonyle

1972 ◽  
Vol 50 (2) ◽  
pp. 217-225 ◽  
Author(s):  
A. M. Bize ◽  
J. Soussen-Jacob ◽  
J. Vincent-Geisse ◽  
D. Legay ◽  
J. P. Perchard
Keyword(s):  
Potential Barrier ◽  
Correlation Functions ◽  
Carbonyl Sulfide ◽  
Experimental Results ◽  
The Other ◽  
Band Width ◽  
Saturated Hydrocarbons ◽  
Rotational Effect ◽  
The Mean

The band width and profile of v3 mode of carbonyl sulfide (OCS) dissolved in about 30 solvents have been examined. The study of temperature broadening permits the separation of the vibrational and rotational effects and the determination of the potential barrier to rotation. Correlation functions have been plotted from the experimental results; the mean squared torques acting on carbonyl sulfide in various solvents have been calculated from the second and the fourth moments. The obtained results bear evidence of a dominant rotational effect for solutions in saturated hydrocarbons while, for the other solvents, vibrational broadening proves important.

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