| abstract |
A standard for referencing luminescence signals is disclosed, comprising an optically transparent base material of a lanthanum-phosphate glass, a fluorophosphate glass, a fluorine crown glass, a lanthanum glass, a glass ceramic formed therefrom or a lithium aluminosilicate glass ceramic in which the base material has a volume doping with at least one component which is fluorescent or luminescent, and which contains at least one rare earth metal and / or a non-ferrous metal, in particular cobalt, chromium or manganese. |