不同产脂力马尾松的热脱附-气相色谱/质谱研究  

STUDY ON FINGERPRINTS OF DIFFERENT RESIN-PRODUCING CAPACITY OF Pinus massoniana Lamb BY THERMAL DESORPTION GC/MS

作　　者：张铭光[1] 沈晓玲[2] 曾令海[2] 袁敏[3] 袁鹏[4] 何波祥[2] 连辉明[2] 

机构地区：[1]华南师范大学生命科学学院,广东广州510631 [2]广东省林业科学研究院,广东广州510521 [3]华南师范大学化学与环境学院,广东广州510631 [4]华南理工大学自动化科学与工程学院,广东广州510640

出　　处：《华南师范大学学报（自然科学版）》2009年第1期95-99,共5页Journal of South China Normal University(Natural Science Edition)

基　　金：广东省科技计划资助项目(2004B20801015)

摘　　要：采用热脱附气相色谱／质谱与计算机图像处理软件技术相结合，研究不同产脂力马尾松针叶色谱指纹图谱特征．结果表明：热脱附温度为350℃时，松针各挥发组分的分离较好，其色谱指纹图谱有较好的重复性；高产脂马尾松针叶与低产脂马尾松针叶的色谱指纹图谱有31个共有组分，其中有23个组分的r值是高产脂马尾松的高于低产脂马尾松的；高产脂马尾松有9个组分的r值高出低产脂马尾松的50％以上，都集中在α值为1．36～2．10的区间；经模糊聚类法分析，10株高产脂马尾松针叶色谱图相似系数〉0．90，10株低产脂马尾松色谱图相似系数〉0．91．The diagnostic fingerprints of the needles of P. massoniana Lamb with different resin - yield capacity were analyzed by thermal desorption GC/MS and computer image processing. Results showed that with the temperature 350 ℃ of thermal desorption, volatile constituents in the needles were well separated and their fingerprints were well repeated. There were 31 common constituents in the fingerprint of high - yield resin P. massoniana Lamb and in that of low - yield resin P. massoniana Lamb. Of which T values of 23 common constituents were greater in high - yield resin P. massoniana Lamb than what in low - yield resin P. massoniana Lamb. T values of 9 common constituents were over 50% and they concentrated on the segment where a values were between 1.36 to 2. 15. By analysis with fuzzy clustering, both similarity coefficient of high - yield resin P. massoniana Lamb and that of low - yield resin P. massoniana Lamb were over 0.90.

关 键 词：热脱附气相色谱/质谱 马尾松产脂力 色谱指纹图谱 

分 类 号：Q94[生物学—植物学] O657[理学—分析化学]