新荧光试剂HNHND荧光猝灭法测定痕量锰(Ⅶ)的研究  

Fluorescence Quenching Method for Determination of Trace Manganese (Ⅶ) with a New Fluorescence Reagent of HNHND

作　　者：赵昌后 毛翼萍[2] 方禹之[2] 

机构地区：[1]咸宁教育学院,咸宁437000 [2]华东师范大学化学系,上海200062

出　　处：《上海环境科学》1996年第11期28-30,共3页Shanghai Environmental Sciences

摘　　要：用荧光猝灭法研究了席夫碱HNHND测定锰(Ⅶ)的方法及条件。在pH=5.4的邻苯二甲酸氢钾缓冲体系中,锰(Ⅶ)浓度在5.00—100.00ng/mL范围内呈良好的线性关系,检测限为0.40ng/mL。该试剂的激发波长为357nm,发射波长为420nm。方法灵敏度高,选择性好,操作简单快捷,可用于茶叶中可溶性锰的测定。Method and condition for determination of trace manganese (Ⅶ) by using fluorescence quenching method with HNHND reagent have been studied. The linear range was 5.00 - 100.0ng/mL, and the minimum detection limit was 0.40ng/mL. This method has been successfully applied to the determination of the soluble manganese (Ⅶ) in green tea.

关 键 词：锰 荧光猝灭法 席夫碱 HNHND 茶叶 

分 类 号：X132[环境科学与工程—环境科学] X835.02