Carrier-free 11 C Formaldehyde : An approach
✍ Scribed by G. Berger; M. Mazière; J. Sastre; D. Comar
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- French
- Weight
- 411 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The different parameters of ^11^C formaldehyde synthesis from ^11^CO~2~ have been systematically studied in order to improve yields, reproductibility and specific radioactivity.
With modifications brought to gas and reagents purity, ^11^CO~2~ trapping system, target and dehydrogenation catalyst treatment, 100 to 200 mCi of ^11^C formaldehyde are obtained at EOB + 10 mn, with a specific activity on the order of 600 mCi/μmole (maximum 1 Ci/μmole).
📜 SIMILAR VOLUMES
Irradiation of optically active crystalline amino acids as targets in the bremsstrahlung of a 65 MeV linear electron accelerator results, among other things, in the production of amino acids with one HC-atom inserted. The chirality of the compound produced is retained. Separation of these amino acid
In this paper, the global method of generalized differential quadrature (GDQ) is applied for the first time to study the free vibration of isotropic conical shells. The shell equations used are Love-type. The displacement fields are expressed as product of unknown functions along the axial direction