Terpenoids: LXIV evaluation of polyesters as stationary phases in gas-liquid chromatography of terpenoids

Bapat, B. V. ; Ghatge, B. B. ; Bhattacharyya, S. C. (1965) Terpenoids: LXIV evaluation of polyesters as stationary phases in gas-liquid chromatography of terpenoids Journal of Chromatography A, 18 . pp. 308-317. ISSN 0021-9673

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00219...

Related URL: http://dx.doi.org/10.1016/S0021-9673(01)80367-8

Abstract

Polyesters from different 1,ω-dicarboxylic acids HOOC·(CH2)n · COOH ranging from malonic acid (n = 1) to hexadecane-1,16-dicarboxylic acid (n = 16) with diethylene glycol were prepared and evaluated as substrates for gas-liquid chromatography. Several terpenic and non-terpenic compounds were analysed. It was observed that the number of methylene groups in the acid fragment of the polyester has a profound influence on the retention time, on the basis of which an interesting mathematical relationship has been developed. The retention time appears to be a characteristic of the number of methylene groups between the two carboxyl groups and the contribution of a single methylene group to the retention time of a particular compound at a particular temperature has been found to be a constant. This relationship holds good for aliphatic and alicyclic hydrocarbons and only slightly deviates for aromatic hydrocarbons.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:3369
Deposited On:11 Oct 2010 08:58
Last Modified:18 May 2011 08:50

Repository Staff Only: item control page