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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (5): 77-81.

• 林学 园艺 园林 • 上一篇    下一篇

沙棘痕量挥发物采集方法探讨及成分分析

刘书景1,金幼菊1,宗世祥2,骆有庆2,姚国龙3,李元3   

  • 收稿日期:2009-10-16 修回日期:2009-11-12 出版日期:2010-03-05 发布日期:2010-03-05
  • 基金资助:

    国家自然科学基金“沙棘木蠹蛾灾害发生机制研究”(30730075),长江学者与创新团队发展计划(PCSIRT0607)。

Study on Collection Method and Component Analysis of Trace Volatiles from Hippophae rhamnoides

  • Received:2009-10-16 Revised:2009-11-12 Online:2010-03-05 Published:2010-03-05

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摘要：

摘要:沙棘挥发物释放量极少，在采集和测定过程中，本底干扰是影响其精确定量的关键因子。针对采样装置中连接管路气味物质对沙棘挥发物的严重干扰，本研究对五种不同产地、不同材质的连接管进行挥发物采集，并通过热脱附-气相色谱-质谱联用（TCT-GC-MS）进行测定。结果表明，美国产食品级聚氯乙烯管（PVC）杂质峰最小，比较适宜采集沙棘痕量挥发物。在近自然状态下，壬烷、辛烷、3-甲基丁醇、戊醛、2-甲基丁醛、2-壬烯醇、2-苯甲酸叶醇酯为沙棘枝叶主要挥发物组分。该方法可以降低干扰、提高信噪比，为低释放型植物挥发物的采集分析提供了新的参考依据。

关键词: 订单农业, 订单农业, 违约, 均值回复过程, 蒙特卡罗模拟

Abstract:

Study on Collection Method and Component Analysis of Trace Volatiles from Hippophae rhamnoides Abstract: Leaves of Hippophae rhamnoides normally release small quantities of volatile chemicals. In volatiles collection and determination, the interference of background is the key factor influencing accurate quantitative analysis. For the great interference of odor from connecting pipe to volatiles, volatiles from Hippophae rhamnoides were collected using five connecting pipe from different places and material and their components were analyzed using TCT-GC/MS. The results indicated that, the impurity peaks from PVC made in USA were minimized. It is suitable for collection of trace volatiles. Furthermore, the main volatiles rom Hippophae rhamnoides included Nonane, Octane, 3-methyl-1-Butanol, Pentanal, 2-methyl- Butanal, 2-Hexen-1-ol, 2-Hexenyl benzoate in close natural state. The method can reduce interference and raise signal-to-noise ratio. The method will supply a new reference for collecting and analyzing volatiles of low-release plants.