Analytical Sciences

Abstract − Analytical Sciences, 34(6), 735 (2018).

Quantification of Trace Arsenic in Whole Blood by ICP-QMS/QMS
Junko SHIRATAKI, Kazuyuki FUJISAKI, Kouichi SAKAGUCHI, and Nobuyuki SATO
Inorganic Analysis Laboratories, Toray Research Center, Inc., 3-3-7 Sonoyama, Otsu, Shiga 520-8567, Japan
ICP-QMS/QMS was applied to whole blood samples to determine the quantity of trace As. It was found that Fe also causes polyatomic interference with As in conventional ICP-QMS, in addition to Ca and Cl, and ICP-QMS/QMS can remove these interferences in mass-shift mode using O2 as reaction gas. The ICP-QMS/QMS technique allows the determination of As at sub-ng mL−1 levels.