Measurement of the Infinite Dilute Activity Coefficients and Diffusion Coefficients of Water and Straight Chain Alcohols in Cross-Linked Polyvinyl Alcohol by Inverse Gas Chromatography

2007 ◽  
Vol 52 (2) ◽  
pp. 368-372 ◽  
Author(s):  
Ding Wang ◽  
Jiding Li ◽  
Chuyi Zeng ◽  
Jian Chen ◽  
Cuixian Chen
Keyword(s):  
Gas Chromatography ◽  
Polyvinyl Alcohol ◽  
Activity Coefficients ◽  
Diffusion Coefficients ◽  
Inverse Gas Chromatography ◽  
Straight Chain ◽  
And Diffusion

Infinite Dilute Activity and Diffusion Coefficients in Polymers by Inverse Gas Chromatography

2006 ◽  
Vol 51 (1) ◽  
pp. 93-98 ◽  
Author(s):  
Chuyi Zeng ◽  
Jiding Li ◽  
Ding Wang ◽  
Tianquan Chen ◽  
Changwei Zhao ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Diffusion Coefficients ◽  
Inverse Gas Chromatography ◽  
And Diffusion

Activity Coefficients at Infinite Dilution of Organic Compounds in 1-(Meth)acryloyloxyalkyl-3-methylimidazolium Bromide Using Inverse Gas Chromatography

2008 ◽  
Vol 112 (12) ◽  
pp. 3773-3785 ◽  
Author(s):  
Fabrice Mutelet ◽  
Jean-Noël Jaubert ◽  
Marek Rogalski ◽  
Julie Harmand ◽  
Michèle Sindt ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Organic Compounds ◽  
Activity Coefficients ◽  
Infinite Dilution ◽  
Inverse Gas Chromatography

scholarly journals Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique

2011 ◽  
Vol 8 (4) ◽  
pp. 1916-1924 ◽  
Author(s):  
Khalisanni Khalid ◽  
Rashid Atta Khan ◽  
Sharifuddin Mohd Zain
Keyword(s):  
Gas Chromatography ◽  
Diffusion Coefficients ◽  
Elution Curve ◽  
Mathematical Expression ◽  
Chromatographic Technique ◽  
Reversed Flow ◽  
Future Studies ◽  
And Diffusion ◽  
Long Chain

The reversed-flow gas chromatography (RF-GC) technique was used to study the evaporation rate and estimating the diffusion coefficient of samples. The RF-GC system comprises of six-port valve, sampling and diffusion column, detector and modified commercial gas chromatography machine. Selected long chain of hydrocarbons (99.99% purity) was used as samples. The solute (stationary phase) were carried out by carrier gas (mobile phase) to the detector. The data obtained from the RF-GC analysis were analysed by deriving the elution curve of the sample peaks using mathematical expression to find the diffusion coefficients values of respective liquids. The values obtained were compared with theoretical values to ensure the accuracy of readings. The interesting findings of the research showed the theoretical values of equilibrium at liquid-gas interphase lead to profound an agreement with the experimental evidence, which contributes for the references of future studies.

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