【摘要】 本文报道了用正、负离子快原子轰击质谱法鉴定有机膦酸酯稀土萃取剂的方法。结果表明:该类化合物的FABMS比较简单,具有〔MH〕⁺,〔M₂H〕⁺,〔M₃H〕⁺等系列离子;断裂方式简明,规律性强。主要表现为C—O,P—O,C—P键断裂;在正离子FABMS中,准分子离子经C—O键断裂,重排后形成的离子RP（OH）₃⁺为基峰离子,在负离子FABMS中,准分子离子RP（O）（OR₁）)O^-为基峰。更多还原

【Abstract】 The positive and negative ion FAB mass spectra of nine new mono or di alkyl alkylphosphorates are reported. Their PFAB and NFAB are simple and clear to give the structural information. The characteristic fragmentations of the compounds are summa rized and disscused based on B/E and B~2/E linked scan techniques.更多还原