Search Results

You are looking at 1 - 4 of 4 items for

  • Author or Editor: L. Mausner x
  • Refine by Access: All Content x
Clear All Modify Search

Abstract  

The radiochemical separation of no-carrier-added (NCA)47Sc fromnatTi targets has been studied. Scandium-47, a medium-energy -emitter, is intended for use with labelled tumor associated monoclonal antibodies for radiotherapy. Several radiochemical methods for the separation of NCA47Sc from macroquantities of titanium and other impurities were tested. Four different procedures based on ion exchange, solvent extraction and extraction chromatography are reported. For each method, parameters such as the distribution coefficient, kinetics and recoveries are reported. The selective separation can be performed rapidly by all methods.

Restricted access

Abstract  

A procedure for recovery of 65Zn from acidic Ga-rich solutions generated in 68Ge production process was developed and implemented in a “hot cell” environment. A one step simple separation was carried out on anion exchange column filled with Biorad AG1-X8 resin. With 65Zn recovery yields of more than 95% this procedure is currently routinely used at Brookhaven Linac Isotope Producer.

Restricted access

Abstract  

A simple, rapid and inexpensive ascending thin-layer and paper radiochromatographic procedure is described, which can be used in the separation and possible identification of some99Mo(V) and99Mo(VI) polyaminocarboxylic acid chelates.

Restricted access

Summary  

Germanium-68 is produced at the Brookhaven Linac Isotope Producer (BLIP) by irradiating natGa targets with ~45 MeV protons. Typical irradiation yields are 17.4 GBq (470 mCi) from a 4 week irradiation (0.52 MBq/µAh). Germanium-68 is recovered from the target by extraction into 4N HCl and 30% H2O2. Further purification is achieved by extraction into carbon tetrachloride and back-extraction into H2O. Recovery yields are greater than 85%, with greater than 99% radiopurity, and activity concentrations are greater than 3.15 GBq/ml (85 mCi/ml). The final pH of the product solution, which is 0.03M diethylenetriaminepentaacetate (DTPA), can now be adjusted to user specifications.

Restricted access