Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique
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 c...
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| Language: | English |
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Wiley
2011-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/618308 |
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| author | Khalisanni Khalid Rashid Atta Khan Sharifuddin Mohd Zain |
| author_facet | Khalisanni Khalid Rashid Atta Khan Sharifuddin Mohd Zain |
| author_sort | Khalisanni Khalid |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-747165d94b414631b3d36a9e4ac9a4e1 |
| institution | OA Journals |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-747165d94b414631b3d36a9e4ac9a4e12025-08-20T02:07:27ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-01841916192410.1155/2011/618308Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic TechniqueKhalisanni Khalid0Rashid Atta Khan1Sharifuddin Mohd Zain2Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, MalaysiaDepartment of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, MalaysiaDepartment of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, MalaysiaThe 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.http://dx.doi.org/10.1155/2011/618308 |
| spellingShingle | Khalisanni Khalid Rashid Atta Khan Sharifuddin Mohd Zain Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique E-Journal of Chemistry |
| title | Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique |
| title_full | Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique |
| title_fullStr | Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique |
| title_full_unstemmed | Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique |
| title_short | Determination of Diffusion Coefficients of Selected Long Chain Hydrocarbons using Reversed- Flow Gas Chromatographic Technique |
| title_sort | determination of diffusion coefficients of selected long chain hydrocarbons using reversed flow gas chromatographic technique |
| url | http://dx.doi.org/10.1155/2011/618308 |
| work_keys_str_mv | AT khalisannikhalid determinationofdiffusioncoefficientsofselectedlongchainhydrocarbonsusingreversedflowgaschromatographictechnique AT rashidattakhan determinationofdiffusioncoefficientsofselectedlongchainhydrocarbonsusingreversedflowgaschromatographictechnique AT sharifuddinmohdzain determinationofdiffusioncoefficientsofselectedlongchainhydrocarbonsusingreversedflowgaschromatographictechnique |