Abstract:
A method for preparing a .sup.195m Au-containing liquid is provided. In the method, .sup.195m Hg is adsorbed on an adsorption agent and then the daughter radioisotope .sup.195m Au is eluted from the adsorption agent with an eluant containing a gold-complexing agent. The adsorption agent comprises a mercury ion-binding material having a substantially stronger adsorption affinity for mercury ions than for gold ions.Also disclosed are a radioisotope generator capable of producing a .sup.195m Au-containing liquid and a process for conducting a radiodiagnostic examination on a warm-blooded animal using a .sup.195m Au-containing liquid.
Abstract:
A method for preparing a .sup.195m Au-containing liquid is provided. In the method, .sup.195m Hg is adsorbed on an adsorption agent and then the daughter radioisotope .sup.195m Au is eluted from the adsorption agent with an eluant containing a gold-complexing agent. The adsorption agent comprises a mercury ion-binding material having a substantially stronger adsorption affinity for mercury ions than for gold ions.Also disclosed are a radioisotope generator capable of producing a .sup.195m Au-containing liquid and a process for conducting a radiodiagnostic examination on a warm-blooded animal using a .sup.195m Au-containing liquid.
Abstract:
The invention related to a method of preparing a protein or a proteinaceous material labelled with a metalradionuclide and intended for diagnostic or therapeutic application, by reacting a protein or a proteinaceous material with an agent for coupling the radionuclide to the protein or the proteinaceous material, a protein conjugate being formed, and by then complexing the radionuclide with the conjugate thus formed to a radionuclide complex. A coupling agent is used which consists at least substantially ofa thio compound of the general formulaY--R--S--XwhereinX is a hydrogen atom or a suitable protective group,R is a branched or non-branched, optionally substituted hydrocarbon radical having 1-10 carbon atoms, which may be interrupted by one or more hereto atoms, andY is at least one terminal reactive group capable of reacting with a functional group from the protein or the proteinaceous material; ora cyclic condensation product of the thio compound of formula I having 5-7 ring atoms, wherein X and Y together constitute a reactive group capable of reacting with a functional group from the protein or the proteinaceous material;or a water-soluble salt of this condensation product.
Abstract:
The invention relates to a metal-radionuclide-labelled particulate composition which may be used in the form of a dry aerosol for lung scintigraphy, in particular, for the examination of the mucociliary transport, or for radiotherapy. The composition comprises radioactive labelled particles on a base of silica gel, another silicaceous material or a non-swelling polymer, at the surface of which organic ligands are bound covalently which comprise thiol-, amino-, alkylamino-, oxime-, dithiocarbamate-, xanthate-, thiosemicarbazone-, or dithiosemicarbazone groups or combinations thereof.The invention further relates to a method of preparing the composition and to a kit for carrying out the method.
Abstract:
A selenomethionine-.sup.75 Se-solution, which is suitable for use as a radioactive diagnostic material in medical science applications, is stabilized with regard to maintaining its radiochemical purity by the addition of a thiol of the formulaHS--(CH.sub.2).sub.n --CHR--CO--NH--CH.sub.2 --COOHin which formula n is 0 or 1 and R is a methyl group when n is 0 and a glutamyl group when n is 1.