Article ID Journal Published Year Pages File Type
1240717 Spectrochimica Acta Part B: Atomic Spectroscopy 2006 8 Pages PDF
Abstract

An electrothermal vaporization (ETV) system useful for the analysis of solutions and slurries has been coupled with a sector-field inductively coupled plasma mass spectrometer (ICP–MS) equipped with an array detector. The ability of this instrument to record the transient signals produced for a number of analytes in ETV–ICP–MS is demonstrated. Detection limits for Mn, Fe, Co, Ni, Cu, Zn and Ga are in the range of 4–60 pg μL− 1 for aqueous solutions and in the low μg g− 1 range for the analysis of 10 mg mL− 1 slurries of Al2O3 powders. The dynamic ranges measured for Fe, Cu and Ga spanned 3–5 orders of magnitude when the detector was operated in the low-gain mode and appear to be limited by the ETV system. Trace amounts of Fe, Cu and Ga could be directly determined in Al2O3 powders at the 2–270 μg g− 1 level without the use of thermochemical reagents. The results well agree with literature values for Fe and Cu, whereas deviations of 50% at the 90 μg g− 1 level for Ga were found.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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