Comparison of methods employing gas chromatography retention data to determine vapour pressures at 298 K

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.

Download Full-text

Comment on “High-Resolution Gas Chromatography Retention Data as Basis for the Estimation ofKowValues Using PCB Congeners as Secondary Standards”

Environmental Science & Technology ◽

10.1021/es035227j ◽

2004 ◽

Vol 38 (7) ◽

pp. 2286-2287 ◽

Cited By ~ 2

Author(s):

Kathrin Fenner ◽

Christine Roth ◽

Kai-Uwe Goss ◽

René P. Schwarzenbach

Keyword(s):

Gas Chromatography ◽

High Resolution ◽

Retention Data ◽

Pcb Congeners ◽

High Resolution Gas Chromatography

Download Full-text

Discrimination between linear and non-linear models describing retention data of alkylbenzenes in gas-chromatography

Chromatographia ◽

10.1007/bf02261306 ◽

1990 ◽

Vol 29 (7-8) ◽

pp. 375-384 ◽

Cited By ~ 36

Author(s):

K. Héberger

Keyword(s):

Gas Chromatography ◽

Linear Models ◽

Retention Data ◽

Non Linear

Download Full-text

Sesquiterpene Hydrocarbons of Commercial Copaiba Balsam and American Cedarwood Oils

Journal of AOAC INTERNATIONAL ◽

10.1093/jaoac/50.6.1304 ◽

1967 ◽

Vol 50 (6) ◽

pp. 1304-1313

Author(s):

John A Wenninger ◽

Ronald L Yates ◽

Meyer Dolinsky

Keyword(s):

Gas Chromatography ◽

Silver Nitrate ◽

Column Chromatography ◽

Infrared Spectra ◽

Chromatographic Retention ◽

Retention Data ◽

Sesquiterpene Hydrocarbons

Abstract The sesquiterpene hydrocarbons of commercial samples of copaiba balsam and American cedarwood oils were separated by a combination of techniques including silver nitrate adduction, column chromatography on alumina, distillation, and gas chromatography. Components were identified by their infrared spectra. Of the 24 sesquiterpene hydrocarbons detected in copaiba balsam oil, 18 were identified as follows: δ-elemcne, copaene, β-cubebene, cyperene, α-bergamotene, β-elemene, caryophyllene,γ -elemene, β-farnesene, allo-aromadendrene, α-, β-humuIene, β-bisabolene, α-selinene, β-selinene, δ-cadinene, ar-curcumene, γ -cadinene, calamenene, and a-cubebene (tentatively identified). The following sesquiterpene hydrocarbons were identified in American cedarwood oil: β-eIemene, acedrene, caryophyllene, thujopsene, α-,βhumulene, "acorene," valencene, cuparene, a cuprenene, and two additional hydrocarbons (tentatively identified). Gas chromatographic retention data are reported for 27 of the sesquiterpene hydrocarbons isolated

Download Full-text