Analysis methods for regional geochemical sample-Part 4: Determination of aurum contents by foamed plastic enrichment-inductively coupled plasma mass spectrometry
Analysis methods for regional geochemical sample-Part 32: Determination of 15 rare earth elements including lanthanum,cerium etc. by pressurized acid digestion - inductively coupled plasma mass spectrometry
Analysis methods for regional geochemical sample-Part 13: Determination of arsenic,antimony and bismuth contents by hydride generation-atomic fluorescence spectrometry
Analysis methods for regional geochemical sample-Part 12: Determination of platinum,palladium and aurum contents by fire assay enrichment-emission spectrometry