Abstract
Isothermal retention indices of some dicarboxylic acid bis(trimethylsilyl) esters at four temperatures of a non-polar capillary column with a cross-linked polymethylsiloxane stationary phase are presented. The separation of particular esters is discussed and the chromatographic behaviour of bis(trimethylsilyl) esters is compared with that of dimethyl esters. The characteristic features of electron impact and methane and isobutane chemical ionization mass spectra and their usefulness for the identification of the trimethylsilyl derivatives are discussed.
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