Tellurium and Thallium by Flame AA

National Geochemical Survey

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Te, Tl

Analysis of Tellurium and Thallium by Flame Vapor Atomic Absorption Spectrometry (USGS and XRAL laboratories)

Method

A 2-g aliquot of powdered sample is heated with 2 ml water, 1 ml conc H₂SO₄ and 10 ml conc HF overnight. 5 ml conc HCl and 1 ml 30% H₂O₂ are added and the sample is heated again. An ascorbic acid - potassium iodide solution is added, followed by an MIBK solution. The sample is shaken, the organic layer is separated, and Te and Tl are measured by flame AA. Details may be found in O'Leary (1996).

Data analysis

		Distribution maps
Element	QA/QC	Conter- minous	Alaska	Hawai`i
Te (ppm)	In progress		no data	no data
Tl (ppm)	In progress		no data	no data

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U.S. Department of the Interior, U.S. Geological Survey
This page is part of U.S. Geological Survey Open-File Report 2004-1001
URL: http://www-tin.er.usgs.gov/geochem/doc/te-tl.htm
Maintained by Jeff Grossman
Last modified: 15:03:10 Tue 06 Jan 2004
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