A Finnigan Voyager GC–MS system was used, flowers headspace and introduced into the GC injecwith
a mass-selective detector with electron impact tor where the thermal desorption of the analytes at
ionization. Analytes were separated using a HP-5MS 2508C for 3 min was carried out.
capillary column of 30 m30.25 mm with a phase
thickness of 0.25 mm from Supelco, which was
inserted directly into the ion source of the MS 3. Results and discussion
system. The temperature program used for analysis
was as follows: the initial temperature was 508C for There are two balances of volatiles: headspace/
2 min, which was increased to 2508C at 58C/min, the flowers and fiber/headspace. Stirring of the water
temperature of 2508C was maintained for 5 min. could increase the flow of headspace air. It would
Helium (99.999%) was the carrier gas maintained at