摘要
采用溶液包结法利用α-环糊精(α-CD)对1-甲基环丙烯(1-MCP)进行包合,将气态的1-MCP固态化形成白色粉末状的1-MCP/α-CD稳定包合物,使之便于保存和应用。利用拉曼光谱(Raman)、X射线粉末衍射光谱(XRD)、气质联用测试仪(GC-MS)、核磁谱仪(NMR)等测试技术对所得包合物的结构和组成进行表征,证明了包合物的形成,同时提出了1-MCP/α-CD包合物中1-MCP含量的快速测定方法,以该法测定的包合物中1-MCP的有效质量分数约为3.6%。对1-MCP和α-CD的包合机理进行了探讨,认为1-MCP和α-CD按摩尔比1∶1进行包合。
The inclusion complex of 1-methylcyclopropene（1-MCP） encapsulated by α-cyclodextrin（α-CD） was synthesized by inletting 1-MCP gas into the α-cyclodextrin saturated solution.Raman spectroscopy,X-ray powder diffraction（XRD）,gas chromatography/mass spectrometry（GC-MS） and nuclear magnetic resonance spectrometry（NMR） methods were used to verify the existence of 1-MCP/α-CD inclusion complex.A rapid determination method was proposed for measuring the content of 1-MCP in the inclusion complex,which was about 3.6%.Moreover,the formation mechanism of the inclusion complex was also discussed.The inclusion ratio was suggested to be a 1∶1 ratio of 1-MCP and α-CD complexation.
出处
《应用化学》
CAS
CSCD
北大核心
2010年第1期82-86,共5页
Chinese Journal of Applied Chemistry
基金
国家高技术研究发展计划资助项目("八六三"计划
2008AA10Z307)
