Determination of Tellurium and Selenium in Atmospheric Aerosol Samples by Graphite Furnace Atomic Absorption Spectrometry
A method has been developed for the determination of Te and Se in atmospheric aerosols by ion exchange and atomic absorption (AA) using a graphite furnace atomizer. The method takes advantage of the high sensitivity of AA for Te after removing interfering elements by cation exchange. Up to 3000 ?g of Fe3+, Zn2+, Al3+, Ca2+, K+, etc., did not Interfere with the determination of 1 ?g of Te, but this level of Ag+, Hg2+, As3+, Cu2+, and Se4+ gave negative errors of 30-80%. Ion exchange reduced the effects of these foreign ions to <10%. Recoveries for Te and Se are 92.3% and 92.0%, respectively. The coefficient of variation was about ±6% at the 20 ng to 150 ng level of Te and about ±4% at the 10 ng to 140 ng level of Se.
K. Chiou and O. Manuel, "Determination of Tellurium and Selenium in Atmospheric Aerosol Samples by Graphite Furnace Atomic Absorption Spectrometry," Analytical Chemistry, vol. 56, pp. 2721-2723, American Chemical Society, Dec 1984.
The definitive version is available at http://dx.doi.org/10.1021/ac00278a021
Keywords and Phrases
Ion Exchange Resins - Applications; Selenium - Measurements; Spectroscopy; Absorption - Applications; Tellurium - Measurements; Atmospheric Aerosol Samples; Atomic Absorption Spectrometry; Aerosols
International Standard Serial Number (ISSN)
Article - Journal
© 1984 American Chemical Society (ACS), All rights reserved.