Journal ArticleDOI
Semi-automated fluorimetric determination of nanogram quantities of selenium in biological material
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TLDR
A semi-automated method, based on the solvent extraction and fluorescence of 4,5-benzopiazselenol, is described for the determination of selenium in biological material.About:
This article is published in Analytica Chimica Acta.The article was published on 1979-03-01. It has received 101 citations till now. The article focuses on the topics: Selenium & Perchloric acid.read more
Citations
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Journal ArticleDOI
An estimation of selenium requirements for New Zealanders
TL;DR: An upper estimated requirement of 90 microgram Se/d was calculated as the intake necessary for maximization of plasma GSHPx activity, as used in the derivation of the US recommended daily allowance, but the upper estimate could be achieved only with regular inclusion of high-selenium foods.
Book ChapterDOI
Selenium in Soils and Plants and its Importance in Livestock and Human Nutrition
TL;DR: This chapter reviews the geomedical aspects of selenium (Se), ranging from the soil through the plants to animal and human nutrition, and interactions occur with other elements and compounds.
Journal ArticleDOI
Determination of selenium in small volumes of blood plasma and serum by electrothermal atomic absorption spectrometry
Georg Alfthan,Jorma Kumpulainen +1 more
Journal ArticleDOI
A Survey of selenium in the environment and a critical review of its determination at trace levels
TL;DR: In this article, a comprehensive literature search was carried out in order to provide an appropriate overview of the most commonly used analytical methods and their limitations, focusing on the determination of selenium at trace levels with consideration of systematic errors in environmentally relevant materials.
Journal ArticleDOI
Oxidation of elemental selenium to selenite by Bacillus megaterium
SU Sarathchandra,JH Watkinson +1 more
TL;DR: A strain of Bacillus megaterium isolated from soil has been found to oxidize elemental selenium in laboratory cultures to selenite and a trace of selenate, representing an important but hitherto unreported oxidative step in the biological selenum cycle.
References
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Journal ArticleDOI
Fluorometric Determination of Selenium in Biological Material with 2,3-Diaminonaphthalene.
Journal ArticleDOI
Selenium-responsive diseases of animals in New Zealand.
TL;DR: Interest in the biology of selenium was focused on its properties as a naturally-occurring poison in plants grazed by stock in certain problem areas, notably in the western states of North America, and those aspects will not be considered further in this review.
Journal ArticleDOI
An automated fluorimetric method for the determination of nanogram quantities of selenium.
M.W. Brown,J.H. Watkinson +1 more
TL;DR: An automated solvent extraction method, based on the fluorescence of 4,5-benzopiazselenol has been developed for the determination of nanogram quantities of selenium as mentioned in this paper.
Journal ArticleDOI
Determination of selenium in blood and plant material by hydride generation and atomic-absorption spectroscopy
TL;DR: A method is described for the routine determination of selenium in blood and plant samples at concentrations in the range 0.01–0.50 µg g–1 and the efficiency of hydride generation was 95%.