Abstract: Organic compounds labeled with no-carrier-added fluorine 18 are processed yield a compound having a formula in the form of .sup.18 F-R through a nucleophilic substitution reaction. The process has a series of steps. The first step of the process relates to providing an organic compound having a formula of X-R. X is the nucleophilic leaving group in the substitution action, and R is a preferred substituted hydrocarbon structure being selected from aliphatic, alicyclic, heterocyclic aliphatic, carbocyclic and heterocyclic aromatic structures. The X-R compounds with acid hydrogen are excluded. The next step is to bring the organic compound X-R into contact with fluoride ions which are present in a solvent. These fluoride ions are essentially carrier free .sup.18 F ions. The organic compound is brought into contact with the fluoride ions in an apparatus to produce a reaction.

Abstract: A process for the enrichment and separation of oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams employs macrocyclic aminopolyether (APE) and organic cation exchange agents. The aqueous solution or the aqueous stream is mixed with at least one organic solvent which is miscible with water to form a liquid mixture. An organic acid cation exchange agent in the H-form is charged with a protonized APE to form a solid phase. The liquid mixture is brought into contact with the solid phase to bring about the enrichment of the heavy hydrogen isotope on the solid phase at a low temperature. The heavy hydrogen isotope from the solid phase is then released at a temperature that is higher by between 30.degree. K. and 150.degree. K. than the temperature at which the enrichment occurred.

Abstract: A process for enriching and separating heavy hydrogen isotopes having a heavy hydrogen cation (deuterium and/or tritium) from substance streams containing them, wherein the respectively present hydrogen isotopes are exchanged in chemical equilibria. A protic, acid solution containing deuterium and/or tritium is brought into contact with a value material from the group of open-chained polyethers or aminopolyethers, macro-monocyclic or macro-polycyclic polyethers, macro-monocyclic or macro-polycyclic amino polyethers, and mixtures of these values, in their free or proton salt form to form a reaction product of the heavy hydrogen cation with the value or value salt and bring about enrichment of deuterium and/or tritium in the reaction product. The reaction product containing the value or value salt is separated from the solution.