Iron analysis in atmospheric water samples by atomic absorption spectroscopy (AAS) in water-methanol.
To distinguish between Fe(II) and Fe(III) species in atmospheric water samples, we have adapted an analytical procedure based on the formation of a specific complex between Fe(II) and ferrozine (FZ) on a chromatographic column. After elution of Fe(III), the Fe(II) complex is recovered with water-methanol (4:1). The possibility of trace iron measurements in this complex medium by graphite-furnace atomic-absorption spectrometry has been investigated. A simplex optimization routine was required to complete the development of the analytical method.
LISA, CNRS-UMR 7583, Université Paris VII et Paris XII, 61 Av du Général de Gaulle, 94010 Créteil, France. sofikitis@lisa.univ-paris12.fr
A M
AM
Sofikitis
J L
JL
Colin
K V
KV
Desboeufs
R
R
Losno