Split Flow Online Solid-Phase Extraction Coupled with Inductively Coupled Plasma Mass Spectrometry System for One-Shot Data Acquisition of Quantification and Recovery Efficiency.
Online solid-phase extraction (SPE) coupled with inductively coupled plasma mass spectrometry (ICPMS) is a useful tool in automatic sequential analysis. However, it cannot simultaneously quantify the analytical targets and their recovery percentages (R%) in one-shot samples. We propose a system that simultaneously acquires both data in a single sample injection. The main flowline of the online solid-phase extraction is divided into main and split flows. The split flow line (i.e., bypass line), which circumvents the SPE column, was placed on the main flow line. Under program-controlled switching of the automatic valve, the ICPMS sequentially measures the targets in a sample before and after column preconcentration and determines the target concentrations and the R% on the SPE column. This paper describes the system development and two demonstrations to exhibit the analytical significance, i.e., the ultratrace amounts of radioactive strontium (90Sr) using commercial Sr-trap resin and multielement adsorbability on the SPE column. This system is applicable to other flow analyses and detectors in online solid phase extraction.
Cluster of Science and Technology, Fukushima University , 1 Kanayagawa, Fukushima 960-1296, Japan.|Faculty of Agriculture, University of Tokyo , 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.|PerkinElmer Japan Co., Ltd. , 134 Godo, Hodogaya, Yokohama, Kanagawa 240-0005, Japan.
Makoto
M
Furukawa
Cluster of Science and Technology, Fukushima University , 1 Kanayagawa, Fukushima 960-1296, Japan.|Institute of Environmental Radioactivity, Fukushima University , Fukushima 960-1296, Japan.
Yoshitaka
Y
Takagai