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Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

Quenching effect of triethylamine on peroxyoxalate chemiluminescence in the presence of 7-amino-4-trifluoromethylcumarin.


PMID 11767829

Abstract

The quenching effect of triethylamine on strong chemiluminescence of bis-(2,4,6-trichlorophenyl)oxalate-hydrogen peroxide system in the presence of 7-amino-4-trifluoromethylcumarin was studied. The system resulted in a nice Stern-Volmer plot with a kQ value of 1.07 x 10(-3) M(-1), in the quencher concentration range of 1.52 x 10(-4) - 1.36 x 10(-3) M. The linear correlation between the decay rate constant of the resulting chemiluminescence and the quencher concentration was also investigated.

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248924
7-Amino-4-(trifluoromethyl)coumarin, ≥99%
C10H6F3NO2