Effect of the Amount of Liquid Phase in Packed Column GC on Air Oxidation Product of Methyl Oleate
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- Mochida Yoshiyuki
- PDepartment of Material and Life Chemistry, Kanagawa University
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- Oka Seiko
- Mass Spectrometry Facility, Center for Instrumental Analysis, Hokkaido University
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- Sugawara Yorikazu
- Anatom Co.Ltd
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- Yokoyama Yukio
- Faculty of Environment and Information Sciences, Division of Natural Environment and Information, Yokohama National University
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Abstract
The analysis or preparative isolation of a specimen by a packed column gas chromatograph is affected by the kind and amount (concentration) of the liquid phase coated on the stationary phase. In particular, compounds having the same or similar molecular weight and similar functional groups are largely affected. Methyl oleate, which is a typical component of fats and oils, produces hydroperoxide by air oxidation as a first step. After that, various oxygenated compounds with a carbon number of 19 are produced. In this study, the effect of the concentration of ethylene glycol succinate polyester (EGS) as the liquid phase was examined for these compounds. The retention time of the hydroxides increased with an increase in the EGS concentration. The effect of the EGS concentration on the retention time decreased when these compounds were trimethyl silylated (TMS). The retention time of epoxides and oxo compounds increased with an increase in the EGS concentration independently of trimethyl silylation. Correction values were required for all quantitation.
Journal
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- Journal of Oleo Science
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Journal of Oleo Science 58 (9), 461-466, 2009
Japan Oil Chemists' Society
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Details 詳細情報について
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- CRID
- 1390282679069971200
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- NII Article ID
- 130000126100
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- NII Book ID
- AA11503337
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- ISSN
- 13473352
- 13458957
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- NDL BIB ID
- 10320734
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed