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Determination of gallium in phosphorus flue dust and other materials by graphite furnace atomic absorption spectrometry.

Authors
Barron-DC; Haynes-BW
Source
Analyst 1986 Jan; 111(1):19-21
NIOSHTIC No.
10004971
Abstract
A simple, rapid method for the determination of gallium in inorganic matrices using Zeeman-corrected graphite furnace atomic absorption spectrometry (GFAAS) is described. The method uses an acid dissolution technique, Mg(NO3)2 as a matrix modifier and the method of standard additions. The 294.4-nm wavelength is used to improve the signal to noise ratio without loss of sensitivity. Gallium was determined in phosphorus flue dust and also in coal fly ash, copper ore and steelmaking flue dust. The procedure is used as an alternative to neutron-activation analysis (NAA) and is intermediate in sensitivity between flame atomic absorption spectrometry and NAA. A comparison of GFAAS and NAA results is presented.
Keywords
Analytical-methods; Analytical-processes
CODEN
ANALAO
Publication Date
19860101
Document Type
OP; Journal Article
Fiscal Year
1986
NTIS Accession No.
NTIS Price
Identifying No.
OP 28-86
Issue of Publication
1
ISSN
0003-2654
NIOSH Division
AVRC
Source Name
Analyst
State
MD
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