Inductively coupled plasma compared with direct current arc spectrometry for analysis of minor elements in aluminium baths

A validation study was carried out in order to evaluate the efficiency of inductively coupled plasma-optical emission spectrometry (ICP-OES) for the analysis of minor elements (manganese, chromium, copper, iron, and titanium) in aluminium alloys. Aluminium casting samples were obtained by adding com...

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Bibliographic Details
Published in:Journal of AOAC International 2004-09, Vol.87 (5), p.1218-1223
Main Authors: ANTOLIN, Raquel, BORGE, Gregorio, POSADA, Tomas, RAPOSO, Juan C, SEARA, Iker, ETXEBARRIA, Néstor
Format: Article
Language:English
Subjects:
Alloys - analysis
Aluminum - analysis
Applied sciences
Chromium - analysis
Copper - analysis
Exact sciences and technology
Iron - analysis
Least-Squares Analysis
Manganese - analysis
Metals. Metallurgy
Spectrophotometry, Atomic
Titanium - analysis
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Summary:A validation study was carried out in order to evaluate the efficiency of inductively coupled plasma-optical emission spectrometry (ICP-OES) for the analysis of minor elements (manganese, chromium, copper, iron, and titanium) in aluminium alloys. Aluminium casting samples were obtained by adding compressed powder compacts of each alloying element and aluminium (minitablets) to aluminum baths in a laboratory crucible furnace. Digestion of solid samples was performed using concentrated HCI and H202 35% (v/v) previous to analysis by ICP-OES without any matrix separation. This solution-based method was validated considering direct current arc spectrometry as the reference method based on direct analysis without any pretreatment of the solid samples considered. Univariate statistical procedures were carried out, for which precision
ISSN:1060-3271
1944-7922
DOI:10.1093/jaoac/87.5.1218