SUMMARY
. ,Portable radioisotope fluorescence analyser em-ploying ~ source and Ni-CO .b8!lanced fiFtres has been used to determine copper in ores of the "Lu-bin" and "Polkowice" copper mines. Measurements have ·been made "in situ" of powder ore samples and cxf solid drill core samples. The results obtained pro-ve a usefulness of the measurements "in situ" in the quick determination of copper in' wan face in order
to
check ore explOitation, and in the case of shales ,and sandstones - in the fast estimation of reserves. A high accuracy of the laboratory fluorescence ana-lysis of powder samples points to a possibility of decreasing the number of chemical analyses. The flu-orescence analysis of drill cores may gi'Ve the same effects.PE310ME
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