摘要
本研究采用固体热解装置并引入同步辐射真空紫外光电离质谱技术(SVUV-PIMS)对补骨脂素的热解产物进行检测,结合量子化学计算其初始热解路径,研究补骨脂素的热解动力学。结果表明,SVUV-PIMS检测到3种热解产物,分别为CO,C9H6O,C10H6O2;通过理论计算出补骨脂素3种可能的裂解途径,其中,补骨脂素主要的初级分解路径是脱CO,主要二级分解反应为脱CO产物的脱CO反应。
In this study,products of psoralen pyrolysis were detected using a solid pyrolysis apparatus and synchrotron radiation vacuum ultraviolet photoionization mass spectrum(SVUV-PIMS).The pyrolytic kinetics of psoralen was also studied by calculating its initial pyrolytic route in quantum chemistry.According to the findings with SVUV-PIMS,three pyrolytic products were observed,CO,C9H6O and C10H6O2.Theoretically,three fragment pathways were calculated for psoralen,in which the major primary decomposition route was de-CO,and the major secondary decomposition reaction was de-CO reaction of de-CO products.
出处
《中国中药杂志》
CAS
CSCD
北大核心
2012年第2期207-211,共5页
China Journal of Chinese Materia Medica
关键词
补骨脂素
热解
单光子电离
分子束质谱
psoralen
pyrolysis
single photon ionization
moclecular-beam mass spectrometry
