一种西夫碱化合物的合成及其在汞测定中的应用  

Synthesis of the schiff base compound and analytical application for determination of trace mercury

作　　者：胡乃梁[1] 陈燕[1] 杨家祥[1] 宋继梅[1] 徐季昭[1] 

机构地区：[1]安徽大学化学化工学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2008年第6期65-68,共4页Journal of Anhui University(Natural Science Edition)

基　　金：安徽省自然科学基金资助项目(03045101)

摘　　要：合成一种新西夫碱2-氨基-5-巯基-1,3,4-噻二唑水杨亚胺（MTYMP）,用常规法对其结构进行表征.该化合物在300 nm激发下,在410 nm处有强荧光峰,与汞离子可形成稳定的配合物而使其荧光猝灭.据此,该化合物可作为测定汞的荧光试剂,建立一个荧光猝灭测定微量汞的新方法,汞离子的含量在4.0～100.0μg·L^-1范围内与试剂的荧光熄灭值呈线性关系,方法的检出限为0.315μg·L^-1.该方法应用于废水中微量汞的测定,结果满意.2- [ （ 5-Mercapto- [ 1,3,4 ] thiadiazol-2-ylimino） -methyl ] -phenol was synthesized. It was a new fluorescence reagent. The reagent exhibited a maximum of fluorescence emission spectrum at 410 nm. The reagent could form a complex with mercury ion to caused its fluorescence quenching. A new spectrofluorimetric method for the determination of trace mercury using this reagent had been developed. The linear range of the method was from 4.0 to 100.0μg/L and the detection limit was 0. 315μg/L of mercury. The method had been used to determine trace mercury in water samples with satisfactory results.

关 键 词：2-氨基-5-巯基-1 3 4-噻二唑水杨亚胺 汞 荧光猝灭法 

分 类 号：O611.64[理学—无机化学]