Enhancement of europium luminescence in tetracycline-europium complexes in the presence of urea hydrogen peroxide.
An increase in the europium emission band was observed, for the first time, with addition of urea hydrogen peroxide to the tetracycline-europium (Tc-Eu)solution. We have observed that the wavelength, the band width and the area of 5D0-->7F2 europium transition change with the urea hydrogen peroxide concentration. We claim that the tetracycline-europium complexes can be used as probes of urea hydrogen peroxide concentration.
da Silva
Flávia Rodrigues
FR
Faculdade de Tecnologia de São Paulo, Departamento de Ensino Geral, Praça Coronel Fernando Prestes, 30 - Bom Retiro, São Paulo, CEP, 01124-060, SP-Brazil.
Courrol
Lilia Coronato
LC
Tarelho
Luis Vicente Gomes
LV
Gomes
Laércio
L
Júnior
Nilson Dias Vieira
ND