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
Laser desorption/Fourier transform mass spectrometry of steroids
β Scribed by Eric T. Fung; Charles L. Wilkins
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 284 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1076-5174
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