Rapid Radiochemical Procedure for Antimony and Arsenic.

A Rapid Radiochemical Procedure for Tin.

“…This unit and the method of introducing the sample to it are the same as unit A described previously in the procedure for the rapid separation of antimony and arsenic hydrides from My. 6 Stannane is formed in unit B, which is a pyrex tube of 18-ml volume with a ground female joint that fits onto section A. The gases from unit B pass to a calcium chloride drying tube, of 12 mm I.D.…”

“…iodine was essential to determine the independent fission yields of Sn. The desiccant drierite., anhydrous calcium sulfate, which works well in removing iodine activities from stibine, 6 was used. It holds back other volatile fission product activities as well.…”

“…Therefore, a high decontamination from all elements in the mass chain was required. In previous work 6 it was found that arsine (AsH 3 ) and stibine (SbH 3 ) can be separated from each other by passing the mixture of gases through a quartz tube at 60 0°C where only the stibine is decomposed to the metal. The arsine passes through this tube and is decomposed to the metal in 6 a second quartz tube heated to a higher temperature.…”

INDEPENDENT YIELDS OF 124Sb AND 126sb IN THERMAL NEUTRON INDUCED FISSION AND THEIR IMPLICATION ON THE EMPIRICAL Zp FUNCTION

“…HzS04, adding a few drops of HNOI, and excess HNOI removed by fuming. Antimony was further purified as stibine using a procedure similar t o that given by Greendale and Love (11).…”

Neutron activation analysis applied to arsenic determination

“…The principal interfering element is Ge. The main methods of purifing arsenic are (a) distillation of either AsCl^ or AsBr^ (47,66,134,140,141,142), (b) solvent extraction of Asl^ into CHClg or (77,132), and (c) evolution of AsH^ (46,132).…”