Determination of Benzidine using Sulfobutyl-β- cyclodeztrin and Neutral Red Complezation as a Supermolecule Probe
Sulfobutyl-β-cyclodextrin could remarkably decrease the fluorescence intensity of Neutral Red. In contrast, fluorescence intensity of Neutral Red enhanced efficiently when benzidine was presence. Consequently, based on the competitive interaction between benzidine and Neutral Red, a new fluorescence spectrographic method of the determination of benzidine was established using sulfobutyl-β-cyclodextrin and Neutral Red as a supermolecule probe in B-R buffer solution (pH 2.75). The linear range was from 2.00×10-8 mol/L to 1.80×10-7 mol/L, the limit of detection was 2.61×10-8 mol/L. It is indicated that this method had high sensitivity, good selectivity and convenient application. This method had been applied to the determination of benzidine in industry waste water. A preliminary discussion was also given on the mechanism of the fluorescence reaction system.
Sulfobutyl-β-cyclodeztrit Neutral Red Benzidine supermolecular probe
Chuan-nan Luo Xue-ying Wang Zhong-peng Xu Zhen Lv
College of Chemistry & Chemical Engineering University of Jinan Jinan,China
国际会议
北京
英文
1-3
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）