Abstract
Nano-sized clusters of gold atoms, or alternatively silver, mercury, bismuth, or zinc sulphide/selenide molecules, can be autometallographically silver-enhanced by being placed in a developer containing reducing molecules and silver ions, i.e. an autometallographic developer. A specific recipe has been worked out for each autometallographically traceable metal, and in cases where two or more autometallographic catalysts are present in the same section it is feasible to distinguish one from the other by chemical removal of one or the other of the metals. In the present study we present protocols that allow differentiation and control of specificity of the established autometallographically detectable metals. It is recommended to implement a multi-element analysis, e.g. proton-induced X-ray emission on a few samples to secure the histochemical data.
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