Chromatographic determination and molecular-statistical calculation of retention volumes of oxygen-containing organic substances on graphitized thermal carbon black part 1: Cyclic ethers and ketones

1983 ◽  
Vol 17 (10) ◽  
pp. 526-532 ◽  
Author(s):  
A. V. Kiselev ◽  
D. L. Markosyan
Keyword(s):  
Carbon Black ◽  
Chromatographic Determination ◽  
Cyclic Ethers ◽  
Organic Substances ◽  
Statistical Calculation ◽  
Graphitized Thermal Carbon Black ◽  
Retention Volumes ◽  
Molecular Statistical Calculation

Micro-packed columns with graphitized thermal carbon black

1982 ◽  
Vol 47 (2) ◽  
pp. 576-581 ◽  
Author(s):  
Ladislav Feltl ◽  
Marcela Antonínová ◽  
Eva Smolková
Keyword(s):  
Carbon Black ◽  
Separation Efficiency ◽  
Packed Column ◽  
Linear Regression Method ◽  
Thermodynamic Quantities ◽  
Graphitized Thermal Carbon Black ◽  
Specific Retention Volumes ◽  
Specific Retention ◽  
Retention Volumes

Two types of column were prepared, conventional packed and micro-packed with Sterling MT graphitized thermal carbon black (GTCB). Comparison demonstrated the advantages of the micro-packed column. The adsorption of C5-C10 alkanes and C4-C10 1-alkenes was studied on these columns in the interval 448.15-488.15 K. The differential heats of adsorption were calculated by the linear regression method from the temperature dependence of the specific retention volumes and the usefulness of the micro-packed column for determination of adsorption thermodynamic quantities was evaluated on the basis of the results. The separation efficiency of the two columns was demonstrated on the separation of a mixture of the geometric isomers of tricyclododecane.

A gas chromatographic study of the adsorption of alkanes and alkenes on graphitized thermal carbon black

1979 ◽  
Vol 44 (4) ◽  
pp. 1116-1125 ◽  
Author(s):  
Ladislav Feltl ◽  
Eva Smolková ◽  
Marcela Skurovcová
Keyword(s):  
Carbon Black ◽  
Chemical Potential ◽  
Chromatographic Study ◽  
Thermodynamic Quantities ◽  
Graphitized Thermal Carbon Black ◽  
Heats Of Adsorption ◽  
Theoretical Assumptions ◽  
Specific Retention Volumes ◽  
Specific Retention ◽  
Retention Volumes

The adsorption of C5-C10 n-alkanes and 1-alkenes on Sterling MT graphitized thermal carbon black was studied over a temperature interval from 175 to 215 °C. Specific retention volumes Vg and Vs were calculated from the experimental retention times and the differential heats of adsorption were obtained by linear regression from their temperature dependence. The standard changes in the chemical potential and entropy were further calculated for the substances studied. The precision of the measurement of the chromatographic data was checked in relation to the precision and accuracy of the calculated thermodynamic quantities. On the basis of the experimental results, the effect of the adsorbate contribution to the thermodynamic adsorption quantities was evaluated and compared with theoretical assumptions.

Graphitized thermal carbon black as a shape-selective stationary phase in GC

1990 ◽  
Vol 30 (9-10) ◽  
pp. 537-542 ◽  
Author(s):  
W. Engewald ◽  
J. Pörschmann ◽  
T. Welsch
Keyword(s):  
Carbon Black ◽  
Stationary Phase ◽  
Graphitized Thermal Carbon Black ◽  
Shape Selective

Molecular statistical calculation of gas adsorption by silicalite

Zeolites ◽  
1985 ◽  
Vol 5 (4) ◽  
pp. 261-267 ◽  
Author(s):  
A.V. Kiselev ◽  
A.A. Lopatkin ◽  
A.A. Shulga
Keyword(s):  
Gas Adsorption ◽  
Statistical Calculation ◽  
Molecular Statistical Calculation

Chromatographic determination of oxygen in organic substances

1971 ◽  
Vol 20 (6) ◽  
pp. 1065-1067
Author(s):  
M. N. Chumachenko ◽  
N. A. Khabarova ◽  
M. V. Egorushkina ◽  
R. A. Ivanchikova
Keyword(s):  
Chromatographic Determination ◽  
Organic Substances
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