Shamsipur Mojtaba, Chaichi Mohammad Javad
Department of Chemistry, Razi University, Kermanshah, Iran.
Spectrochim Acta A Mol Biomol Spectrosc. 2005 Apr;61(6):1227-31. doi: 10.1016/j.saa.2004.06.045.
The quenching effect of L-cysteine and L-methionine on strong chemiluminescence of bis-(2,4,6-trichlorophenyl)oxalate-H(2)O(2) 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 x 10(-5) to 5.2 x 10(-4)M with k(Q) values of 1.15 x 10(4) and 1.28 x 10(4)M(-1) for L-cysteine and L-methionine, respectively.
研究了L-半胱氨酸和L-甲硫氨酸在7-氨基-4-三氟甲基香豆素存在下对双（2,4,6-三氯苯基）草酸酯-H₂O₂体系强化学发光的猝灭作用。通过对所得强度-时间曲线进行计算机拟合来评估化学发光参数。在猝灭剂浓度范围为6.5×10⁻⁵至5.2×10⁻⁴M时，两个体系均得到了Stern-Volmer曲线，L-半胱氨酸和L-甲硫氨酸的k(Q)值分别为1.15×10⁴和1.28×10⁴M⁻¹。
