Study of a new type of active carbon CF-1 as an adsorbent in gas chromatography

1982 ◽  
Vol 47 (2) ◽  
pp. 582-587 ◽  
Author(s):  
Ladislav Feltl ◽  
Jana Hronková ◽  
Eva Smolková
Keyword(s):  
Gas Chromatography ◽  
Stationary Phase ◽  
Active Carbon ◽  
Retention Data ◽  
Heats Of Adsorption ◽  
New Type

A new type of active carbon, CF-1, was used as the stationary phase in gas chromatography. The adsorption of n-alkanes C2-C5, 1-alkenes C2-C4, acetylene, alcohols, ethyl ethers, CO2, H2S and SO2 was studied. The measurements were carried out with the original adsorbent and after its reduction with hydrogen at a temperature of 1 000°C. The original and pretreated active carbon were evaluated on the basis of the determined retention data and calculated value of the differential heats of adsorption.

scholarly journals Adsorption Properties and Structure of Some Active Carbons

1993 ◽  
Vol 10 (1-4) ◽  
pp. 211-220 ◽  
Author(s):  
I.A. Bardina ◽  
E.V. Kalashnikova ◽  
N.V. Kovaleva ◽  
T.A. Rudnitskaya ◽  
N.K. Shonya
Keyword(s):  
Gas Chromatography ◽  
Carbon Black ◽  
Active Carbon ◽  
Graphitized Carbon Black ◽  
Adsorption Properties ◽  
Static Method ◽  
Active Carbons ◽  
Heats Of Adsorption ◽  
Graphitized Carbon ◽  
Low Coverage

Gas chromatography has been used to determine the initial low-coverage heats of adsorption of C2–C6 hydrocarbons and their derivatives on active carbon and graphitized carbon black. The porous structure of the active carbon has been determined from the adsorption isotherms of benzene measured at 25°C by a vacuum static method. The isotherms have been analyzed with the help of the BET and Dubinin–Radushkevich theories.

Adsorption of noble gases on the carbon adsorbents supersorbon HS and Jado

1983 ◽  
Vol 48 (3) ◽  
pp. 819-826 ◽  
Author(s):  
Ludmila Wilhelmová ◽  
František Cejnar
Keyword(s):  
Gas Chromatography ◽  
Active Carbon ◽  
Noble Gases ◽  
Carbon Adsorbent ◽  
Adsorption Properties ◽  
Carbon Adsorbents ◽  
Adsorption Behaviour ◽  
Practical Application ◽  
Heats Of Adsorption ◽  
Temperature Range

The isotherms, isosters and heats of adsorption of argon, krypton and xenon were measured on the active carbon Supersorbon HS and the carbon adsorbent Jado LD 1191 - in a temperature range 298-473 K, using gas chromatography. Differences were observed in the adsorption behaviour of both types of adsorbents - which showed especially on the nonlinearity of adsorption isosters of all gases studied with the Jado LD 1191 adsorbent. It was found that both types of adsorbents possess good adsorption properties, which can be - for Supersorb HS - utilized in the beds of the delaying lines of radioactive noble gases. The practical application of the Jado LD 1191 adsorbent for the same purposes is limited by the presence of inactive teflon support in the structure of this adsorbent.

Preparation of mixed stationary phase of cellulose and polysiloxane ionic liquid for gas chromatography

2014 ◽  
Vol 32 (10) ◽  
pp. 1117
Author(s):  
Gang CHEN ◽  
Xiaojie ZHAO ◽  
Jun XING ◽  
Yuhua YAO ◽  
Jingjing ZHENG
Keyword(s):  
Gas Chromatography ◽  
Ionic Liquid ◽  
Stationary Phase ◽  
Mixed Stationary Phase

Evaluation of "Dexsil 300 GC" as Stationary Phase in Gas Chromatography of Triiodothyronine and Thyroxine in Human Serum

1973 ◽  
Vol 19 (1) ◽  
pp. 109-112 ◽  
Author(s):  
Mohammed Tajuddin ◽  
Stanley G Elfbaum
Keyword(s):  
Gas Chromatography ◽  
Stationary Phase ◽  
Human Serum ◽  
Methyl Esters ◽  
Phase Separations ◽  
Heat Stable

Abstract The N,O-dipivalyl methyl esters of triiodothyronine and thyroxine were prepared and gas chromatographed. "Dexsil 300 GC," a heat-stable polycarboranesiloxane, was used as the stationary phase. Separations were good and prompt. As little as 250 pg of triiodothyronine was detectable. Dexsil 300 GC was used satisfactorily in measuring serum triiodothyronine

Concept study with experimental proof for a new type of detector for gas chromatography

2021 ◽  
pp. 130490
Author(s):  
Ricarda Wagner ◽  
Daniela Schönauer-Kamin ◽  
Wolfgang Bäther ◽  
Ralf Moos
Keyword(s):  
Gas Chromatography ◽  
Experimental Proof ◽  
Concept Study ◽  
New Type

A New Stationary Phase for Capillary Gas Chromatography: Calix[4]resorcinarene Functionalized with Imidazolium Cationic Units

2021 ◽  
Vol 84 (4) ◽  
pp. 325-333
Author(s):  
Xiaomin Shuai ◽  
Zhiqiang Cai ◽  
Xinyu Zhao ◽  
Yujie Chen ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Stationary Phase ◽  
Capillary Gas Chromatography ◽  
New Stationary Phase
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