Colorimetric recognition of different enzymology-concerning transition metals based on a hybrid cluster complex

Anal Sci. 2004 Jul;20(7):997-9. doi: 10.2116/analsci.20.997.

Abstract

A hybrid cluster complex, formed by chelating a chromogenic ligand to a [2Fe-2S] cluster, sensitively exhibited differential colorimetric responses towards Hg2+, Cd2+, Cr3+, Pb2, Sn2+, Cu2+, Zn2+, Fe3+ and Co2+ in water at physiological pH. Speciation of some of these metal elements, such as Cr(III) and Sn(IV), was also studied by UV/Vis absorption.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chromium / chemistry
  • Colorimetry / methods*
  • Hydrogen-Ion Concentration
  • Ions
  • Iron-Sulfur Proteins / chemistry*
  • Metals / chemistry
  • Models, Chemical
  • Spectrophotometry / methods
  • Transition Elements / analysis*
  • Ultraviolet Rays

Substances

  • Ions
  • Iron-Sulfur Proteins
  • Metals
  • Transition Elements
  • Chromium