Determination of Gallium in Pure Aluminum by Isotope Dilution Analysis with Solvent Extraction Using Inductively Coupled Plasma Mass Spectrometry

1990 ◽  
Vol 44 (1) ◽  
pp. 91-95 ◽  
Author(s):  
Akio Makishima ◽  
Isamu Inamoto ◽  
Koichi Chiba

Isotope dilution analysis with inductively coupled plasma mass spectrometry (ICP-MS) was applied to the determination of gallium in pure aluminum. Furthermore, a solvent extraction procedure was combined with isotope dilution analysis as a preconcentration technique in order to determine ultra-trace levels of gallium with high precision. The accuracy and the precision of isotope dilution analysis using ICP-MS were compared with those of conventional standard addition analysis using ICP-MS. Isotope dilution analysis gave more accurate and precise results than did standard addition analysis. Isotope dilution analysis with solvent extraction made it possible to measure 0.029 µg/g gallium in 99.999% aluminum with analytical errors at less than 3%.

2015 ◽  
Vol 30 (2) ◽  
pp. 506-514 ◽  
Author(s):  
Rahat Khan ◽  
Yuta Yokozuka ◽  
Saki Terai ◽  
Naoki Shirai ◽  
Mitsuru Ebihara

Inductively coupled plasma mass spectrometry (ICP-MS) procedures with isotope dilution were established for the accurate determination of trace Zn (in the level of 10−4to 10−5g g−1) in several tens of mg of geological and cosmochemical rock samples.


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