SPME—GC／MS法对水线草挥发性成分的研究

Study on the Volatile Constituents of Hedyotis corymbosa （L.）Lam. by SPME-GC/MS

首次利用不同固相萃取纤维（SPME）结合GS-MS分析水线草挥发油成分。利用SPME共检测出化合物83个，其中队检测出45个，PDMS—DVB检测出51个，100μmPDMS检测出20个，三者同时检测到邻苯二甲酸二丁脂、2，6，10，14-四甲基-十七烷、十七烷、十六烷，6，10，14-三甲基-2-十五烷酮五种成分；PA和PDMS—DVB共同检测化合物21个，PDMS与PDMS／DVB、PA共同检测的化合物分别为7个和9个。研究结果为利用SPMEGS／MS检测水线草挥发油成分提供了试验依据。

The analysis of volatile components extracted from Hedyotis corymbosa （L.） Lain. using different solid phase mieroextraction 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, 2,0,10,14-tetramethyl, Heptadecane, Dibutyl phthalate, Hexadecane, 2- Pentadecanone 6,10, 14-trimethylcould 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.