Abstract: FABMS of Germanium Propionyl and Methylpropionyl Amino Acid Ester SesquioxidesWu Yiwei; Liu Guoxiang(Department of Chemistry, Capital Normal University, Beijing 100037,China)Hu Wenxiang; Yun Liuhong(Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences,Beijijng 100085, China)Abstract: A series of germanium propionyl and methylpropinoyl amiono acid esters sesquioxides were determined by the fast atomic bombardment mass spectrometry (FABMS).The correlation between fragement peaks were found and some FABMS phenomenawere discussed.Keywords: germanium propionyl and methylpropionyl amino acid ester sesquioxides, fast atomic bombardment, mass spectrometry