Cationization in electron ionization mass spectrometry of polar organic molecules
โ Scribed by G.Doyle Daves Jr.; William R. Anderson Jr.
- Publisher
- Elsevier Science
- Year
- 1979
- Weight
- 280 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0020-7381
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract The positiveโion electron impact ionization mass spectra of eight substituted 3โnitropyrroles were examined. The major fragment ions arise by __ortho__ interactions between the 3โnitro group and the 2โmethyl or 2โaryl group.
A laser desorption/ionization (LDI) time-of-flight mass spectrometric (TOF-MS) technique was used for the molecular mass analysis of thia fatty acids and esters, samples without appreciable light absorption at the laser wavelength. After a sample overlayer is deposited by solvent evaporation on a th
The natural compound curcumin, used in cosmetics, traditional medicines and as a spice in food, is known as a multi-factorial anti-inรammatory agent. To study the anti-inรammatory activity of curcumin derivatives, 24 analogues were synthesized and their structures were conรrmed by 1H NMR and electro