The mass spectral behaviour of a new type of organophosphorus compound, 1,3,2-benzodioxaphospholes, under 70 eV electron impact has been studied by means of high and low resolution mass spectrometry as well as by BIE and B2/E linked scans. The influence of different substituents in the molecule (0,
Ion mobility spectrometric studies of organophosphorus compounds
β Scribed by Zeev Karpas; Yaffa Pollevoy
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 468 KB
- Volume
- 259
- Category
- Article
- ISSN
- 0003-2670
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β¦ Synopsis
The mobMy spectra of several organophosphorus compounds were measured by 1011 mobility spectrometric methods The correlation between the mass and structure of the Ions formed and theu mob&y was mvestlgated It was found that compounds m wluch the phosphorus atom IS tnvalent had lugher mobdltles than their phosphonate isomers It was also found that substltutlon of an alkoxy group by chlorme had httle effect on the mass-molxhty correlation The tendency of these compounds to form protonated duners was studled, and the protonated monomer to dlmer ratlo m dlmethylmethylphosphonate as a function of concentration was measured
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Positive and negative ion mobility spectra of dimenhydrinate are presented, rod the cakdated reduced mobility (Ke) values for the most signi6cmt peaks are reported. Mass identi6cation of the ionic species associated with the peaks in the ion mobility spectra was achieved by interfacing the ion mobil
## Abstract Doubly charged ion mass spectra have been obtained for 11 organophosphorus compounds. Methane has been used as a target gas to increase the probability of single electron transfer collisions in the first fieldβfree region of an Hitachi RMUβ7L mass spectrometer. In general, the spectra o