Study of the gas chromatographic behavior of selected alcohols and amines |
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Authors: | Yasar Thewalim Oscar Bruno Anders Colmsjö |
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Institution: | (1) Department of Analytical Chemistry, Stockholm University, 106 91 Stockholm, Sweden; |
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Abstract: | The gas chromatographic behavior of selected linear and non-linear alcohols and amines was investigated using four capillary
columns containing phenyl substitution levels of 0%, 5%, and 50% and 50% cyanopropyl substitution. In a previous study, the
positions of specific compounds inside the capillary column were iteratively modeled using only two thermodynamic parameters
(ΔH and ΔS). The present study addresses the validation of the two-parameter model for retention time prediction for selected alcohols
and amines using thermodynamic data obtained from as few as two data points. The difference between predicted and observed
retention times under different temperature conditions was generally less than 1% of the experimental value and the predicted
order of elution was correct in the used model. |
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Keywords: | |
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