Luminol in the presence of H 2 O 2 and Co(II) as a catalyst was used for analysis of aluminum in colored samples by titrating 8-hydroxyquinoline. I, Fe(II), Sn(II), Mo(III), Ti(III), As(III), Pb(II),Ĭ 2 O 4 2, H 2 O 2, I 2 (a) IO 3 (a,b), Ag (c), VO 3 (d)ī After addition of an excess of iodide solution of known concentration.Ĭ AgI is precipitated by adding an excess of iodide, which is then titrated in the presence of the precipitate.Įxcess was back-titrated with a standard solution of lucigenin. Table 1 Chemiluminescent Systems in Redox TitrationsĪs(III), Sb(III), S 2 O 3 2, SO 3 2, S 2, CN, SCNįe(CN) 6 4, As(III), OCl, OBr, Cr(III)
