Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Example of a typical furnace used for the distillation of 211At. (A) Gas inlet with desiccant. (B) Furnace heated to 650°C–900°C. (C) Capillary trap cooled in (D) a dry ice/ethanol bath. It can be replaced by a cooled bubbler containing the solvent of interest. (E) Gas-wash bottle containing a reducing agent such as Na2S2O5 to trap traces of astatine that would escape from the capillary. Reprinted by permission from Lindegren et al13.
