TITLE:
Determination of Lanthanoids in Seawater by Inductively Coupled Plasma Mass Spectrometry after Pre-Concentration with a Chelating Resin Disk
AUTHORS:
Megumi Fukai, Yoshikazu Kikawada, Takao Oi
KEYWORDS:
Lanthanoids, Chelating Resin Disk, ICP-MS, Lanthanoid Abundance Pattern
JOURNAL NAME:
Natural Science,
Vol.8 No.10,
October
27,
2016
ABSTRACT: A seawater sample was analyzed for its lanthanoids (Ln’s) contents by inductively coupled plasma mass spectrometry (ICP-MS). The analytical procedure included the pre-concentration and partial purification of Ln’s with a chelating resin disk and the employment of the combination of the internal standard and standard addition methods in ICP-MS, which seemed indispensable for the determination of low-level Ln’s by ICP-MS. The recoveries of the Ln’s with the disk were mostly 70% or better with the concentration factor of 200. The measured concentrations of Ln’s were on the order of ng?dm–3 or lower and reasonable except that of neodymium and samarium.