Journal ArticleDOI
Comparative Study of Zinc Tablet and Sodium Borohydride Tablet Reduction Systems in the Determination of Arsenic, Antimony, and Selenium by Atomic-Absorption Spectrophotometry via Their Hydrides
TLDR
In this paper, an atomic-absorption spectrophotometric method for the rapid and sensitive determination of arsenic, antimony, and selenium with the hydride-argon/hydrogen flame system has been studied.Abstract:
An atomic-absorption spectrophotometric method for the rapid and sensitive determination of arsenic, antimony, and selenium with the hydride-argon/hydrogen flame system has been studied. The comparison of the zinc tablet combined with stannous chloride and potassium iodide, and the sodium borohydride tablet reduction systems are described. The sensitivities and precisions of both reduction systems are estimated to be nearly the same. From the results of the comprehensive study on interferences, the zinc system is concluded to be more selective than the sodium borohydride system, which is especially true for arsenic.read more
Citations
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Journal ArticleDOI
Selenium in environmental waters: Determination, speciation and concentration levels.
Harry Robberecht,R. Van Grieken +1 more
TL;DR: This article reviews the different methods used for the determination of selenium species in all types of environmental waters and basic difficulties are discussed and the efficiency of the methods is explained in view of the sub-mug/1.
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
The determination of selenium by atomic-absorption spectrometry: A review
TL;DR: A comprehensive review is given of the determination of selenium by the various atomic-absorption spectrometry methods that have been developed, covering the use of various flame and electrothermal ionization methods, hydride techniques, preconcentration and separation, and giving an appraisal of the results.
Journal ArticleDOI
Interference by volatile nitrogen oxides and transition-metal catalysis in the preconcentration of arsenic and selenium as hydrides
Journal ArticleDOI
Determination of selenium in the environment and in biological material.
TL;DR: This paper reviews the following problems, sampling, decomposition procedures and most important analytical methods used for selenium determination, e.g., neutron activation analysis, atomic absorption spectrometry, gas-liquid chromatography, spectrophotometry, fluorimetry, and x-ray fluorescence.
References
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Journal ArticleDOI
Gas-sampling technique for arsenic determination by atomic absorption spectrophotometry
TL;DR: The above “flameless” technique cannot be used to determine arsenic because of the high temperature required to maintain arsenic in its vapor state.
Journal ArticleDOI
Interferences in the determination of elements that form volatile hydrides with sodium borohydride using atomic-absorption spectrophotometry and the argon-hydrogen flame
TL;DR: In this article, the determination of arsenic, bismuth, germanium, antimony, selenium, tin and tellurium by reaction with sodium borohydride in dilute hydrochloric acid followed by measurement with atomic-absorption spectrophotometry in an argon-hydrogen flame was made.
Journal ArticleDOI
Atomic-absorption studies on the determination of antimony, arsenic, bismuth, germanium, lead, selenium, tellurium and tin by utilising the generation of covalent hydrides
K. C. Thompson,D. R. Thomerson +1 more
TL;DR: In this paper, a method for the determination of arsenic, bismuth, germanium, lead, antimony, selenium, tin and tellurium by means of hydride generation is described.
Journal ArticleDOI
Sub Microgram Determination of Arsenic, Selenium, Antimony and Bismuth By Atomic Absorption Utilizing Sodium Borohydride Reduction
Frank J. Schmidt,James L. Royer +1 more
TL;DR: In this article, a rapid and sensitive method for the determination of arsenic, selenium, antimony, and bismuth is described, where the elements and their compounds are reduced to the corresponding hydride with sodium borohydride.
Journal ArticleDOI
Flameless Atomic Absorption Determination of Volatile Hydrides Using Cold Trap Collection
TL;DR: In this article, the hydrides of arsenic, antimony, bismuth, and selenium are collected in a liquid nitrogen cold trap and then volatilized into either an argon-entrained air-hydrogen flame or into a Perkin-Elmer HGA-2000 Graphite Furnace for atomic absorption measurement.
Related Papers (5)
Interferences in the determination of elements that form volatile hydrides with sodium borohydride using atomic-absorption spectrophotometry and the argon-hydrogen flame
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