Article ID Journal Published Year Pages File Type
10557413 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2005 5 Pages PDF
Abstract
The quenching effect of l-cysteine and l-methionine on strong chemiluminescence of bis-(2,4,6-trichlorophenyl)oxalate-H2O2 system in the presence of 7-amino-4-trifluoromethylcumarin was studied. The chemiluminescence parameters were evaluated from computer fitting of the resulting intensity-time plots. Both systems resulted in Stern-Volmer plots in the quencher concentration range of 6.5 × 10−5 to 5.2 × 10−4 M with kQ values of 1.15 × 104 and 1.28 × 104 M−1 for l-cysteine and l-methionine, respectively.
Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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