Abstract: The analysis of volatile components extracted from Hedyotis corymbosa (L.) Lam. using different solid phase microextraction fibers (SPME-fibers) coupled with GC-MS was reported for the first time. All 83 compounds identied by SPME-GC/MS includes 45 compounds for fiber PA, 51 compounds for fiber PDMS-DVB, 20 compounds for fiber PDMS. In term of chemicals, Pentadecane, 2,6,10,14-tetramethyl, Heptadecane, Dibutyl phthalate, Hexadecane, 2-Pentadecanone 6,10,14trimethyl could be tested by the three fibers, the numbers of common compounds of PA/PDMS-DVB, PDMS-DVB/PDMS and PA/PDMS were 21, 9 and 7 separately. The results show SPME-GS/MS can be applied to analysis of aromatic compounds in Hedyotis corymbosa.

Key words: Hedyotis corymbosa (L.)Lam, HPME-GS/MS, PA, PDMS/DVB, PDMS, volatile constituents