Suppression of Selective Volatilization in a Method for the Spectrographic Analysis of Lanthanum
- 1 March 1966
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 20 (2) , 107-112
- https://doi.org/10.1366/000370266774386290
Abstract
The effects of electrode type, arc current, and the Stallwood Jet on selective distillation of impurities other than rare earths in La2O3 are evaluated. Selective volatilization is reduced by use of a 20-A dc arc with a ⅛-in.-diam electrode. An analytical method incorporating these operating conditions is presented for 19 impurity elements in La2O3 prepared from the lanthanum metal sample. The overall precision is about ±14% relative standard deviation over the concentration range of 30 to 1000 parts per million.Keywords
This publication has 2 references indexed in Scilit:
- Air-Cooled Electrodes for the Spectrochemical Analysis of Powders*†‡Journal of the Optical Society of America, 1954
- Analysis of Caustic Liquors for Traces of ImpuritiesIndustrial & Engineering Chemistry Analytical Edition, 1938