A fairly rapid, quantitative, spectrographic procedure using Lu and Cd as internal standards is given for the analysis of Pb, Zn, Co, Cu, Ni, V and Cr in soils and stream sediments. Zinc, an element generally not amenable to spectrographic determination at low concentration, can be determined by the use of a pure argon atmosphere. A new gas-switching technique permits the other elements to be determined in the same burn. Approximately 7 samples can be processed per man/hour for 7 elements, giving a total of 49 element determinations/hour. This technique compares favorably in speed with colorimetric or semi-quantitative spectro-graphic techniques using visual comparison with external standards, and is more quantitative.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.