NDLI: Determination of selenium in bovine liver by Zeeman-effect atomic absorption spectrometry using a palladium-copper chemical modifier

Content Provider	Royal Society of Chemistry (RSC)
Author	Martin, Carolyn K. Williams, James C.
Copyright Year	1989
Abstract	A simple method for the determination of biological selenium is described using Zeeman-effect graphite furnace atomic absorption spectrometry with calibration against aqueous standards. Data are presented on the recovery of selenium from NIST SRM Bovine Liver 1577a. A microwave-digestion method using nitric acid was applied to small samples. A chemical modifier system was employed that caused biological selenium to behave as inorganic selenium standards would with respect to appearance time and peak shape. This system consisted of a solution containing 600 mg l–1 of palladium nitrate and 500 mg l–1 of copper nitrate, used as the mixed modifier, and 0.1% Triton X-100 added to standards and samples. The over-all average selenium recovery from 0.005–0.650-g samples of the liver standard reference material was 98.5 ± 7.2%(n= 38) by direct calibration and 98.3 ± 6.3 (n= 16) by standard additions calibration using the proposed method.
Starting Page	691
Ending Page	695
Page Count	5
File Format	PDF
ISSN	02679477
Volume Number	4
Issue Number	8
Journal	Journal of Analytical Atomic Spectrometry
DOI	10.1039/JA9890400691
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	NIST Triton Selenium Graphite furnace atomic absorption National Institute of Standards and Technology Acid Palladium(II) nitrate Copper(II) nitrate Triton X-100 Liver Certified reference materials
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Analytical Chemistry

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