蜂胶表面解吸常压化学电离质谱分析.docVIP

蜂胶表面解吸常压化学电离质谱分析.doc

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蜂胶表面解吸常压化学电离质谱 郭夏丽1,罗丽萍1,*,陈焕文2 1南昌大学生命科学与食品工程学院,, *Email: lluo2@126.com 蜂胶(propolis)是蜜蜂从胶源植物上采集的树脂,由蜜蜂混入蜂蜡和腺体分泌物形成的胶状物质。关于蜂胶化学组成的研究均是针对蜂胶某一部分进行,通常包括三类:蜂胶醇提物、水提物和挥发性成分。 [1] Xu, Y. J.; Luo, L. P.; Chen, B.; Fu, Y. X. Front. Biol. China. 2009, 4(4): 385. [2] Luo, L. P.; Fu, Y. X.; Xu, Y. J. International Conference of natural products and traditional medicine, 2009. [3] Luo, L. P.; Li Y.; Xu, Y. J.; Fu, Y. X.; Chen B. International Conference of Natural Products and Traditional Medicine, 2009, (1-2): 435. [4] 付宇新徐元君. 分析化学2009, 37(5): 745. [5] 陈滨罗丽萍 分析化学2009, 37(12): 1786. [6] Zhang, C. P.; Zheng, H. Q.; Liu, G.; Hu, F. L. Food Chem. 2011,127: 345. [7] 陈焕文, 赖劲虎, 周瑜芬, 郇延富. 分析化学,2007,35(8):1 233. Direct Analysis of Propolis by Surface Desorption Atmospheric Pressure Chemical Ionization Mass Spectrometry Xia-Li Guo 1, Li-Ping Luo1,*, Huan-Wen Chen2 1 School of Life Sciences and Food Engineering, Nanchang University, 235, Nanjing East Road, Nanchang, Jiangxi 330047 2Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China Institute of Technology, 418 Guanglan Road,Nanchang, Jiangxi 330013 Abstract: A new surface desorption atmospheric chemical ionization mass spectrometry(SDAPCI-MS) method was established to directly fingerpint various propolis with neither sample pre-treatment nor toxic chemical contamination. Propolis were successfully analyzed based on their unique mass spetral fingerprints. Four flavonoids, chrysin, pinocembrin, quercetin and salicin, were determined, the identification of the molecular structure of interested ions was demonstrated by multiple-stage SDAPCI mass spectrometry. The analysis time was less than 1 s for any single sample, and SDAPCI-MS can be operated online continuously. Clearly, SDAPCI-MS with water vapor in the atmosphere as ionization reagent can detect both volatile and non-volatile chemicals from propolis at ambient pressure,showing its potential in fast and nondestructive analysis of bulk samples. . .

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