Abstract
Chemiluminescence (CL) in the system containing hyrdroxylamine, sodium hydroxide, copper(II) ions and complex of europium(III) with thenoyltrifluoroacetone has been studied. A weak emission arises from hydroxylamine in the presence of copper(II) ions in a basic aqueous solution. Addition of europium(III) chelate to this system causes a significant increase in the chemiluminescence intensity. The dominant band observed in the emission spectrum occurs at λ∼ 600 nm, confirming that Eu(III) ions are the only emitters in the system studied. A strong correlation between the CL intensity and the concentrations of europium(III) chelate was observed. It means that europium(III) thenoyltrifluoroacetone complex does not influence the oxidation rate of hydroxylamine and indicates its important role in this reaction as a sensitiser. A possible mechanism of the chemiluminescence of the NH2OH‐OH‐NaOH‐CU(II) − Eu(III) chelate system is presented.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
