In present work, a technique of fast atom bombardment mass spectrometry ( FABMS) in conjuction with mass analyzed ion kinetic energy spectroscopy ( MIKES) has been successfully applied to structural analysis of β-cyclodextrins derivatives. 利用快原子轰击质谱(FABMS)和质量分离离子动能谱(MIKES)法研究了三个β&环糊精衍生物的结构。