Laser desorption Fourier transform mass spectrometric analysis of organoactinides: uranium and thorium polypyrazolylborates
β Scribed by Liang, Zhenmin.; Marshall, Alan G.; Marcalo, Joaquim.; Marques, Noemia.; Pires de Matos, Antonio.; Santos, Isabel.; Weil, David A.
- Book ID
- 127351814
- Publisher
- American Chemical Society
- Year
- 1991
- Tongue
- English
- Weight
- 467 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0276-7333
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The 248 nm laser desorption Fourier transform ion cyclotron resonance positive-and negative-ion mass spectra are presented for two novel porphyri-pacer-quinone bichromophoric systems in which the spacer consists of a polynorbornyl-type hydrocarbon and also for a model tetraphenylporphyrin compound.
Natural polymers, humic acid and lignins, were investigated by laser desorption (LD) Fourier transform mass spectrometry. In the vapor phase under LD conditions only positive ions of humic acid were observed up to m/z 700. Under the same conditions all the lignins investigated prefer to form negativ