Abstract
Multielement analysis of geological samples at a very high rate necessitates to define a fully automated system. A flux distributor delivers sodium peroxide in zirconium crucible. Sample identification and weight are stored directly in the computer. The powder mixture travels through a tunnel furnace at a temperature of 450°C. then the sinter is digested to give 10% hydrochloric acid solution. The spectrometer gives the concentration of 34 major and trace elements. An automatic calibration every five samples avoids long term drifts and ree integrations on each sample avoids short term fluctuations.
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