The determination of conjugatedcis-trans andtrans-trans methyl octadecadienoates by infrared spectrometry
Autor: | J. M. Hawkins, J. R. Chipault |
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Rok vydání: | 1959 |
Předmět: | |
Zdroj: | Journal of the American Oil Chemists Society. 36:535-539 |
ISSN: | 1558-9331 0003-021X |
DOI: | 10.1007/bf02641144 |
Popis: | Pure conjugated methylcis-trans andtrans-trans octadecadienoates have been prepared and used to develop a method for the determination of these compounds by infrared spectrometry.Cis-trans compounds alone or in the presence oftrans-trans conjugation may be determined directly by the absorption at 10.55 μ. In the absence ofcis-trans isomers conjugatedtrans-trans octadienoates may be determined directly from the absorption at 10.11 μ. When both types of compounds are present however, a correction must be applied for the contribution of thecis-trans isomers to the 10.11 μ absorption of thetrans-trans material. |
Databáze: | OpenAIRE |
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