Cefquinome was studied by ESI and EI mass spectrometry,and its structure was proved from mass spectrometry. The results indicated that ESI positive ion of cefquinome included[M+H]+529,395.5,323.6,166.6.the main fragme...Cefquinome was studied by ESI and EI mass spectrometry,and its structure was proved from mass spectrometry. The results indicated that ESI positive ion of cefquinome included[M+H]+529,395.5,323.6,166.6.the main fragmentations of EI MS involved m/z 528,395,239,225,33,132,105,91,77,44,and so on.The structure segment accorded with its cracking.展开更多
文摘Cefquinome was studied by ESI and EI mass spectrometry,and its structure was proved from mass spectrometry. The results indicated that ESI positive ion of cefquinome included[M+H]+529,395.5,323.6,166.6.the main fragmentations of EI MS involved m/z 528,395,239,225,33,132,105,91,77,44,and so on.The structure segment accorded with its cracking.
