Fresenius' Journal of Analytical Chemistry

, Volume 368, Issue 6, pp 607–610

X-ray fluorescence analysis of trace metal ions following a preconcentration of metal-diethyldithiocarbamate complexes by homogeneous liquid-liquid extraction

  • A. Takahashi
  • S. Igarashi
  • Y. Ueki
  • H. Yamaguchi
Original Paper

Abstract

A homogeneous liquid-liquid extraction method for 36 metal ions with diethyldithiocarbamate was studied. As a result, 11 metal ions were extracted as metal-chelates. Under the experimental conditions, the maximum concentration factor was 500 (i.e., 0.1 mL of sedimented liquid phase was produced from 50 mL of aqueous phase). Moreover, the proposed method was utilized as a preconcentration method for X-ray fluorescence analysis of these metals. The recovery of each metal was ca. 97–100%. All calibration curves were linear over the range of 5.0 × 10–7 mol L–1 to 1.0 × 10–5 mol L–1. The detection limits were at the ¶10–8 mol L–1 levels and the relative standard deviations were below 5% (5 determinations). When the proposed method was used for the determination of contaminants in a synthetic sample (Al-based alloy model) and of components in an Au-Pd alloy, the results were satisfactory.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • A. Takahashi
    • 1
  • S. Igarashi
    • 1
  • Y. Ueki
    • 1
  • H. Yamaguchi
    • 2
  1. 1.Department of Materials Science, Faculty of Engineering, Ibaraki University, Nakanarusawa 4-12-1, Hitachi, Ibaraki 316-8511, JapanJP
  2. 2.National Research Institute for Metals, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, JapanJP

Personalised recommendations