Chemical ionization mass spectrometry of organotin compounds
โ Scribed by Richard H. Fish; Roy L. Holmstead; John E. Casida
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- French
- Weight
- 187 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
Chemical ionization (CI) mass spectrometry (MS) is a relatively new aspect of conventional mass spectrometry'. In this technique sample molecules are ionized via ion--molecule reactions in the gas phase, as opposed to the more common electron impact process. Thus, reagent gas ions, which are generated (eg. CH5+ and C2H5 + from CHq) by
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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