Premium
A tentative identification of components in the essential oil of Cannabis sativa L. by a combination of gas chromatography negative ion chemical ionization mass spectrometry and retention indices
Author(s) -
Hendriks H.,
Bruins A. P.
Publication year - 1983
Publication title -
biomedical mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0306-042X
DOI - 10.1002/bms.1200100607
Subject(s) - chemistry , kovats retention index , mass spectrometry , chemical ionization , ion , chromatography , gas chromatography , analytical chemistry (journal) , polyatomic ion , ionization , organic chemistry
The identification of components in the essential oil of Cannabis sativa L. is accomplished by combining the information of molecular weight, functional group and retention index. The molecular weight of individual substances eluting from a capillary column is determined by negative ion chemical ionization. The reactant ion OH − produces [MH] − ions by proton abstraction. The RCOO unit present in esters is converted into the RCOO − ion by a nucleophilic attack by the OH − ion upon the ester function, which offers a simple identification of the acid part of an ester.