Gas Chromatographic Determination of Mono- and Di-Basic Acids

Crowell, E. P.; Aronovic, S. M.; Burnett, B. B.

doi:10.1093/chromsci/9.5.296

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1977

1995

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Cited by 3 publications

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“…To our knowledge the problem of failure of quantitative analysis of aromatic esters on polyester liquid phases has not been reported elsewhere. Methyl esters of benzoic and terephthalic acids were apparently more Stable on columns of 12% FFAP (a terephthalate-modified Carbowax 20M) on Chromosorb W than were dimethyl esters of acids such as azelaic, unless water vapor was added to the carrier gas (20).…”

Section: Resultsmentioning

confidence: 99%

Selection of internal standards for determining quantitative recovery of isoprenoid acids after urea complexing

Ackman¹,

Šipoš²,

Hooper³

et al. 1977

J Americ Oil Chem Soc

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AND SUMMARYVarious types of esters are considered as internal standards for the quantitative gas liquid chromatographic determination of isoprenoid fatty acids after urea complex treatment of esters of total or saturated fatty acids. It is shown that aromatic esters are potentially unsuitable because of on-column losses with polyester columns. Two classes of aliphatic esters, either of 2-ethyl-l-hexanol, or of 3-cyclohexylpropionic acid, have been evaluated as satisfactory and certain gas liquid chromatographic retention data is given to show which ester might be selected for a particular application.

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Section: Resultsmentioning

confidence: 99%