Electron Impact Ionization Mass Spectra of Organophosphorus Compounds Part IV: Mass Fragmentation Modes of Some Diethyl [(Alkyl/Arylamino)(6-Methyl-4-Oxo-4H-Chromen-3-YL)Methyl]Phosphonates
1. Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypttarik_elsayed1975@yahoo.com;3. Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt