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Emission Spectrometric Determination of the Main Components and the Trace Elements in Nonconducting Powders by Means of the Plastic-Bounded Electrode System

Volume 32, Number 2 (April 1978) Page 247-249

Papp, Lajos


One of the methods most frequently used for the spectrochemical analysis of nonconducting powders is the excitation from the powder that has been loaded onto the electrode crater. The reproducibility in data obtained from this method can be increased if the nonconducting material is mixed with a conducting one and briquetted. The goal of this procedure is to obtain a more uniform material transport into the excitation source. Because of the disadvantages of the briquett method (i.e., the effect of the structure of the briquett, the dilution of the nonconducting material, and the great pressure that must be applied), the technique cannot be used for trace analysis purposes.