APPARATUS FOR DETERMINING TRACES OF ELEMENTS IN MASSIVE SAMPLES BY OPTICAL EMISSION SPECTROMETRY

摘要

Apparatus for determining traces of elements in massive samples by optical emission spectrometry comprises an attachment to a Petrey table which is a rotatable sample holder that rotates eccentric to and in gas-tight relation relative to the Petrey table, so that the path of the projection of the electrode on the sample is circular. The material of the sample holder is a self-lubricating material, e.g. polytetrafluoroethylene. The sample holder carries resilient clamps for centering the sample relative to the sample holder.