Original Papers
Development of FIA Equipped with a Chemiluminescence Detector Using a Mixed Reagent of Luminol and 1,10-Phenanthroline
2003 Volume 19 Issue 7 Pages 1019-1023
Details
2003 Volume 19 Issue 7 Pages 1019-1023
We developed an FIA system equipped with a chemiluminescence detector using a mixed chemiluminescence reagent of luminol and 1,10-phenanthroline for the detection of metal ions and metal complexes. The carrier, mixed chemiluminescence reagent comprising luminol, 1,10-phenanthroline, and cethyltrimethylammonium bromide, and H2O2 solutions were fed by corresponding pumps at a definite flow rate. Sample solutions dissolving hematin, [Co(NH3)4(H2O)2]2(SO4)3, CuSO4, NiCl2, K3[Fe(CN)6], and K4[Fe(CN)6] were analyzed as models by the means of the present FIA system. Solutions of hematin, [Co(NH3)4(H2O)2]2(SO4)3, CuSO4, and NiCl2 were detected as positive peaks, as usual. The order of the catalytic activity of these samples for the present chemiluminescence reaction using the mixed chemiluminescence reagent was [Co(NH3)4(H2O)2]2(SO4)3 > hematin > CuSO4 > NiCl2. On the other hand, sample solutions of K3[Fe(CN)6] and K4[Fe(CN)6] were detected as negative peaks and were determined over the ranges of 1 × 10-8 - 1 × 10-6 M with a detection limit of 1 × 10-8 M and 2 × 10-8 - 4 × 10-6 M with a detection limit of 2 × 10-8 M, respectively. Their negative peaks were observed reproducibly with a relative standard deviation of 2 - 5%.
