[On the stability of homoeopathic dilutions in glass and plastic containers (author's transl)]

Adsorption of traces of gold, iron, zinc and mercury, labelled with 195Au, 59Fe, 65ZN, 203Hg, was studied in dependence on time as well as on the container-material and composition of the solution. With exception of the zinc-solutions in all other solutions a considerable decrease was ascertained. Acid- or silicone-treatment of the surfaces shortly cause altered adsorption properties, but cannot prevent a sorption. From the different adsorption behaviour of the investigated elements one can conclude that the different affinity and adhesive power of the ions must be referred to their different chemical and physical properties.