Abstract
A method is described for the spectrochemical analysis of super pure chromium for six impurity elements. The chromium is removed by volatilisation as chromyl chloride and the impurities collected on a calcium sulphate matrix. This is burned in a d.c. arc and the intensities of the impurity lines are measured with reference to indium, which is added as an internal standard. Working curves are shown for the six elements, Mg, Pb, Fe, Al, Cu and Ag in the concentration range 0.005 - 0.0001 per cent. Results are given of a typical analysis and the standard deviations.
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription