Method for production of an isotopically enriched compound

A method of producing an isotopically enriched compound of an isotope comprising:

• (a) providing a reaction system having a first reaction zone and a second reaction zone, wherein the first reaction zone is in fluid connection with the second reaction zone, wherein the second reaction zone is otherwise closed, and wherein the first reaction zone also has an opening to the surrounding environment;
• (b) introducing a first solution comprising a parent radionuclide to the first reaction zone;
• (c) mixing the first solution with one or more second solutions in the first reaction zone, wherein a precipitate containing the parent radionuclide of the first solution is formed in the first reaction zone;
• (d) sealing the opening of the first reaction zone wherein the first reaction zone remains in fluid connection with the second reaction zone;
• (e) allowing sufficient time for the parent radionuclide to decay into a gaseous daughter isotope;
• and
• (f) exposing the second reaction zone to temperatures below the freezing point of the daughter isotope wherein the daughter isotope is collected in the second reaction zone as a solid.

A method of producing an isotopically enriched compound of xenon comprising:

• (a) providing a reaction system having a first reaction zone and a second reaction zone, wherein the first reaction zone is in fluid connection with the second reaction zone, wherein the second reaction zone is otherwise closed, and wherein the first reaction zone also has an opening to the surrounding environment;
• (b) introducing a first solution comprising I-131 to the first reaction zone;
• (c) mixing the first solution with one or more second solutions in the first reaction zone, wherein a precipitate containing I-131 is formed in the first reaction zone;
• (d) sealing the opening of the first reaction zone wherein the first reaction zone remains in fluid connection with the second reaction zone;
• (e) allowing sufficient time for the I-131 to decay into an isotope of xenon;
• and
• (f) exposing the second reaction zone to temperatures below the freezing point of xenon wherein the xenon isotope is collected in the second reaction zone as a solid.