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Enhancement effect of alkaline earth metal on the determination of aluminium by atomic absorption spectrometry with a graphite furnace

Technology reports of the Yamaguchi University Volume 4 Issue 1 Page 37-42
published_at 1987-12
KJ00004351093.pdf
[fulltext] 330 KB
Title
Enhancement effect of alkaline earth metal on the determination of aluminium by atomic absorption spectrometry with a graphite furnace
Creators Matsusaki Koji
Source Identifiers
In the determination of aluminium by atomic absorption spectrometry with a graphite furnace, coexisting oxyanion salts of alkaline earth metal enhanced the aluminium atomic absorption. The relative absorbance was increased with decreasing of the ramp atomization rate and with decreasing of the sheathing gas flow rate less than 51 min^<-1>. These results show that the enhancement effect is caused by the reductivity of the carbide of alkaline earth metal which is formed in the furnace at ashing and atomization steps. The relative enhancement followed the sequence: Ca>Sr>Mg. The addition of mixture of calcium nitrate and ammonium salt of EDTA enhanced the atomic absorption of aluminium and also removed the interference of chloride in the atomic absorption of aluminium.
Subjects
工学 ( Other)
Languages eng
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1987-12
File Version Version of Record
Access Rights open access
Relations
[ISSN]0386-3433
[NCID]AA0086073X
Schools 工学部