Analytical Sciences

Abstract − Analytical Sciences, 19(5), 791 (2003).

Simultaneous Determination of Trace Elements in Minute Samples by Electrothermal-Vaporization/Low-Pressure Helium-ICP-MS
Hideo HAYASHI, Takahiro HONDA, Taku IWATA, Tomokazu TANAKA, and Masataka HIRAIDE
Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
Electrothermal vaporization with two filaments was studied for low-pressure helium-ICP-MS. A 10-µl volume of sample was dried and vaporized, and then introduced to the ICP. With this technique, four elements were simultaneously determined with the acceptable precisions (RSD ca. 10%). The detection limit based on 3 σ of background signals approached the fractional ppb range. The proposed method was successfully applied to the analysis of the certified reference material for human hair.