Direct analysis of an organic molecular beam by quadrupole mass spectrometry
β Scribed by Kiyoshi Yase; Yuji Yoshida; Toshiyuki Uno; Norimasa Okui
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 271 KB
- Volume
- 166
- Category
- Article
- ISSN
- 0022-0248
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
We present results for direct on-line detection of semi-volatile compounds in air using membrane introduction ion trap mass spectrometry. Brief sampling periods of 10 seconds to 3 minutes produced linear and reproducible data for concentrations ranging from parts-per-trillion to parts-per-billion by
New mass spectrometric methodology' for structural elucidation of components present in complex mixtures is here applied to a species of mushroom, Helvella esculenta. This approach is shown to have the following characteristics which are important in natural products chemistry: (i) no preparation of