Co (II)/EDTA-induced luminol chemiluminescence
measurements were carried out on a model 6200 Fluorimeter, JENWAY (Jenway Gransmore Green Felsted
Dunmow Essex CM6 3 LB), keeping the lamp off and
using only the photo multiplier of the apparatus. The
procedure used is the one described by Parejo, Codina,
Petrakis, and Kefalas (2000) with some variations.