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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| Format: | Article |
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2011
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| author | Khalid, K. Zain, Sharifuddin Md Khan, R.A. |
| author_facet | Khalid, K. Zain, Sharifuddin Md Khan, R.A. |
| author_sort | Khalid, K. |
| collection | UM |
| 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. © Copyright E-Journal of Chemistry 2004-2011. |
| first_indexed | 2024-03-06T05:15:51Z |
| format | Article |
| id | um.eprints-6061 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:15:51Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | um.eprints-60612019-10-25T09:14:22Z http://eprints.um.edu.my/6061/ Determination of diffusion coefficients of selected long chain hydrocarbons using reversed- flow gas chromatographic technique Khalid, K. Zain, Sharifuddin Md Khan, R.A. QD Chemistry 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. © Copyright E-Journal of Chemistry 2004-2011. 2011 Article PeerReviewed Khalid, K. and Zain, Sharifuddin Md and Khan, R.A. (2011) Determination of diffusion coefficients of selected long chain hydrocarbons using reversed- flow gas chromatographic technique. E-Journal of Chemistry, 8 (4). pp. 1916-1924. ISSN 09734945 , http://www.scopus.com/inward/record.url?eid=2-s2.0-80055078236&partnerID=40&md5=6243b250143be045bdb2eef8fc324364 |
| spellingShingle | QD Chemistry Khalid, K. Zain, Sharifuddin Md Khan, R.A. Determination of diffusion coefficients of selected long chain hydrocarbons using reversed- flow gas chromatographic technique |
| 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 |
| topic | QD Chemistry |
| work_keys_str_mv | AT khalidk determinationofdiffusioncoefficientsofselectedlongchainhydrocarbonsusingreversedflowgaschromatographictechnique AT zainsharifuddinmd determinationofdiffusioncoefficientsofselectedlongchainhydrocarbonsusingreversedflowgaschromatographictechnique AT khanra determinationofdiffusioncoefficientsofselectedlongchainhydrocarbonsusingreversedflowgaschromatographictechnique |