The H2 and CH, chemical ionization mass spectra of the olefinic esters methyl acrylate, methyl methacrylate, methyl crotonate, methyl 3-butenoate, methyl 2-methyl-2-butenoate, methyl 3-methyl-2-butenoate and methyl cinnamate have been determined. In addition to the expected loss of CH,OH from [MH]+,
Site of protonation and bond cleavages in chemical ionization mass spectrometry
โ Scribed by Hisao Nakata; Makoto Suzuki; Ken-Ichi Harada; Naohito Takeda; Akira Tatematsu
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 113 KB
- Volume
- 16
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The hydrogen and isobutane chemical ionization mass spectra of a number of carotenoids, with symmetrical and unsymmetrical end groups, have been examined. Similar spectra were obtained with each gas. Loss of fragments, characteristic of both the polyene chain and of the end groups were shown by all
## Abstract The negative chemical ionization mass spectra of nitrobenzene, ethylene glycol dinitrate and nitroglycerine have been obtained using various reagent ions. For nitrobenzene, [OH]^โ^ gives the [M โ H]^โ^, together with [M]^โห^ ions formed by electron capture, but other reagent ions gave r