2.1.1. MS identifications
A total of 70 volatile compounds were detected in the headspace
of the citrus blossoms analyzed in this study. Earlier studies
of aromatic and medicinal plants (Bicchi et al., 2000) had found
that a biphase fiber coating of polydimethylsiloxane (PDMS) and
Carboxen was the most effective for detection of plant volatiles.
Therefore, this fiber type was employed for the current study. Of
the 70 peaks reported, 66 were identified by matching their retention
characteristics (DB-Wax column) and MS fragmentation patterns
against standards as well as library spectra. In addition, one
peak could only be identified as an unknown terpene and three
others could not be identified at this time.