Organic Mass Spectrometry p. 1135 - 1143 (1993)
Update date:2022-08-10
Topics:
Gu, Ming
Turecek, Frantisek
A new scan technique utilizing the tandem quadrupole acceleration-deceleration mass spectrometer is described.The technique is based on combined monitoring of neutral and ion precursors that fragment following collisional electron transfer to give rise to a selected low-mass neutral species and its ion, respectively.PO(.) is found to be a stable neutral species formed by dissociations of a variety of oxidized phosphorus compounds, such as di- and trialkyl phosphites, phosphates and phosphonic esters.These compounds can be selectively monitored through PO(.) precursor scans in multi-component mixtures.Interferences from isobaric neutral species, 35ClC(.), CH3S(.), CH330SiH2(.), and their precursors are discussed.Neutralization-reionization spectra of phosphorus-containing radicals, PO(.), CH3OPH(.), CH3OPOH(.), (.)P(OCH3)2 and (CH3O)2PO(.), are also reported.
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