Estúdio de la reacción entre el Ce (III) y el Acido Trietilentetraaminohexaacético. Determinación espectrofotométrica de cerio

Authors

  • M. Hernández Cordoba
  • C. Sánchez Pedreño
  • P. Viñas López-Pelegrin

Abstract

A spectrophotometric study about the reaction between Ce(III) and triethylentetraaminehexaacetic acid (TTHA) is presented. At pH 5 Ce(III) forms with TTHA a 1:1 molar ratio complex which shows an absorption maximum at 280 nm (ε = 824 mol-1 . cm-1 . 1) and is suitable for the spectrophotometric determination of cerium (15-150 p. p. m.). The standard deviation for ten determinations at 1,97 mg leve1 was 1,97 . 10-3.

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Artículos