title: Flow-injection electrogenerated chemiluminescence detection of hydrazine based on its in-situ electrochemical modification at a pre-anodized platinum electrode.
abstract: In this paper. it was found that the enhancing effect of hydrazine on the weak electrogenerated chemiluminescence (ECL) signal of the electrooxidation of luminol at a pre-anodized platinum electrode was stronger than that of hydrazine at a bare platinum electrode. Based on this finding and the combination of this finding with a flow-injection technique, a novel, sensitive and selective ECL method for hydrazine was developed. Under the optimum experimental conditions, the relative ECL intensity was linear with hydrazine concentration over the range 2.0 x 10(-8) - 5.0 x 10(-5) mol L(-1), with a detection limit of 6.0 x 10(-9) mol L(-1).
authors.affiliation: College of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, PR China. zhengxw@snnu.edu.cn
authors.forename: Xingwang
authors.initials: X
authors.lastname: Zheng
authors.forename: Zhujun
authors.initials: Z
authors.lastname: Zhang
authors.forename: Zhihui
authors.initials: Z
authors.lastname: Guo
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
mesh_terms: D004566:Electrodes; D004785:Environmental Pollutants / Q000032:analysis*; D017022:Flow Injection Analysis; D006834:Hydrazines / Q000032:analysis*; D008163:Luminescent Measurements; D008165:Luminol; D010984:Platinum
chemical_list: D004785:Environmental Pollutants; D006834:Hydrazines; D010984:Platinum; D008165:Luminol