Quenching effect of dl(±)α-methylbenzylamine on peroxyoxalate chemiluminescence of 7-amino-4-trifluoromethylcumarin

The quenching effect of dl(±)α-methylbenzylamine on strong chemiluminescence of bis(2,4,6-trichlorophenyl)oxalate-hydrogen peroxide system in the presence of 7-amino-4-trifluoromethylcumarin was investigated. The chemiluminescence parameters were evaluated from computer fitting of the resulting intensity–time plots. The system resulted in a Stern–Volmer plot with a KQ value of 569 M−1, in the quencher concentration range of 2.8×10−4 to 2.8×10−3 M.