Application of Flameless Atomization to the Atomic Absorption Determination of Selenium in Biological Samples
- 1 April 1974
- journal article
- spectroscopy
- Published by Taylor & Francis in Analytical Letters
- Vol. 7 (4) , 257-265
- https://doi.org/10.1080/00032717408058186
Abstract
Trace amounts of selenium in biological samples were estimated by atomic absorption utilizing a Varian carbon rod flameless atomizer. Samples were digested with nitric perchloric acids, selenium was separated from the interfering sample matrices by reduction-precipitation with ascorbic acid, redissolved in acid and five microliter aliquots were taken for analysis. For a variety of samples, the results were comparable with, but somewhat lower than, levels determined by fluoro-metry. Sensitivity and detection limit are 80 ng/ml and 60 ng/ml respectively; absolute sensitivity and detection limit are 4×10 −10 g and 3×10 −10 g respectively.Keywords
This publication has 7 references indexed in Scilit:
- Sub Microgram Determination of Arsenic, Selenium, Antimony and Bismuth By Atomic Absorption Utilizing Sodium Borohydride ReductionAnalytical Letters, 1973
- Rapid determination of selenium and tellurium by atomic-absorption spectrophotometryTalanta, 1972
- Determination of trace amounts of selenium in wastewaters by carbon rod atomizationAnalytical Chemistry, 1972
- Rapid determination of selenium by atomic absorption spectrophotometryAnalytica Chimica Acta, 1972
- Enhancement of Sensitivity for Selenium Determination in Atomic Absorption Spectrophotometry by Introducting Hydrogen Selenide into an Argon-Hydrogen FlameAnalytical Letters, 1972
- Use of the nitrous oxide-aceytlene flame for determination of arsenic and selenium by atomic absorption spectrometryAnalytical Chemistry, 1971
- The atomic absorption spectroscopy of seleniumAnalytica Chimica Acta, 1968