讨论了合成反应的条件和质谱裂解途径。
We also analysed the conditions of synthetic reaction and fragmentation method of the compounds in MS.
结果表明：胆甾醇酯的EI质谱裂解途径主要由甾环决定，各化合物谱图之间几乎无差别；
The result shows that EI fragmentation process of cholesterol esters is determined mostly by the steroid nucleus, and there is almost no difference among the mass spectra of various compounds.
采用电喷雾离子阱(ESI - MS)质谱技术对水飞蓟宾的结构和裂解途径进行研究。
The structure and fragmentation pathway of silybin were elucidated by electron spray ionization mass spectrometry (ESI-MS).
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The characteristic ions and fragmentation patterns of shikimic acid were discussed by EIMS, ESIMS and MS/MS.
利用台式飞行时间质谱的中分辨本领，研究了牡荆素的电子轰击质谱的裂解规律，对裂解途径进行了完全的指认。
Using moderate resolution capabilities of a desk time-of-flight (TOF) instrument, the fragmentation regularity from electron impact mass spectra of vitexin was studied.
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The mass spectra were interpreted mainly by comparing the fragments of six compounds, and their fragmentation patterns were proposed.
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The characteristic ions and fragmentation patterns of shikimic acid were discussed by EIMS, ESIMS and MS/MS. This paper summarizes the basic of mass spectroscopy of shikimic acid.
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The characteristic ions and fragmentation patterns of shikimic acid were discussed by EIMS, ESIMS and MS/MS. This paper summarizes the basic of mass spectroscopy of shikimic acid.
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