摘要
在作黄酮和黄酮甙的快原子轰击质谱（ＦＡＢＭＳ）时，如果同时加入氯化钠和氯化钾两种碱金属盐，就会在谱图中同时出现［Ｍ＋Ｋ］＋和［Ｍ＋Ｎａ］＋两个强峰，由于这两个峰相差１６个原子质量单位（ａｍｕ），很容易辨认，并且发现在其谱图中找不到明显的碎片离子和Ｎａ＋和Ｋ＋的加合离子，而只有其分子和Ｋ＋和Ｎａ＋的加合，所以很容易在ＦＡＢ谱中识别它们，因而就可以快速。
When progesterone compounds were mixed with an appropriate of NaCl and KCl, in the high mass region of their fast atom bombardment mass spectra appeared two strong ion peaks \++ and \++. This pair of adductions were easily recognized due to the fact that they were very strong (their abundances were higher than that of corresponding \++ in several tens fold) and their mass difference was 16 amu and may give exactly the information about molecurlar weight.
出处
《分析测试技术与仪器》
CAS
1999年第2期120-121,共2页
Analysis and Testing Technology and Instruments
基金
甘肃省自然科学基金
