Journal of the Oceanographical Society of Japan

, Volume 38, Issue 6, pp 357–361 | Cite as

The determination of Mn, Fe, Ni, Cu and Zn in seawater by atomic absorption spectrometry after coprecipitation with lanthanum hydroxide

  • Yoshimasa Toyota
  • Shiro Okabe
  • Satoru Kanamori
  • Yasushi Kitano
Article

Abstract

A simple and rapid coprecipitation method for the determination of several trace metals in seawater is presented. These metals are coprecipitated with lanthanum hydroxide, the precipitate is dissolved, and then the metals are determined by atomic absorption spectrometry. Lanthanum hydroxide was chosen as a coprecipitant for the following reasons, (a) lanthanum hydroxide has a sufficiently low solubility and forms an easily filterable flocculate at about 80‡C, and (b) lanthanum has an absorption wavelength that is sufficiently separated from those of the other elements to be analysed, i.e., Mn, Fe, Ni, Cu and Zn. Experimental results show that these metals are coprecipitated by the present method with excellent recoveries.

Keywords

Hydroxide Atomic Absorption Trace Metal Present Method Atomic Absorption Spectrometry 

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Copyright information

© Oceanographical Society of Japan 1982

Authors and Affiliations

  • Yoshimasa Toyota
    • 1
  • Shiro Okabe
    • 1
  • Satoru Kanamori
  • Yasushi Kitano
    • 2
  1. 1.Faculty of Marine Science and TechnologyTokai UniversityShimizuJapan
  2. 2.Water Research InstituteNagoya UniversityNagoyaJapan

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