双水杨醛草酰二腙的合成及其用于检测锌的研究  

Synthesis of N'1,N'2-Bis[(1E)-(2-Hydroxyphenyl)Methylene]Ethanedihydrazide and Its Application to Determination of Zn(Ⅱ)

作　　者：梁卓文[1] 孟建新[1] 

机构地区：[1]暨南大学化学系,广东广州510632

出　　处：《光谱学与光谱分析》2006年第6期1145-1147,共3页Spectroscopy and Spectral Analysis

基　　金：广东省自然科学基金(010380);广东省科技计划项目(2003C20411)资助

摘　　要：合成了新化合物双水杨醛草酰二腙，根据元素分析及红外光谱确定了其结构，研究了该化合物与锌离子在溶液中的荧光反应。结果表明，以乙醇为溶剂，酸度为7.00时，该化合物与锌离子生成配合物的荧光强度最强。体系的荧光强度与锌离子的浓度在0-65.0μg·L^-1的范围内呈良好的线性关系，检测下限达0.3μg·L^-1。通过对16种常见离子在该体系中的干扰的实验研究，证明双水杨醛草酰二腙对锌离子有良好的选择性，对含锌营养食盐及人发中的锌进行了测定，结果满意。A reagent of N＇1,N＇2-bis[（1E）-（2-hydroxyphenyl）methylene]ethanedihydrazide （DSOD） was synthesized, and characterized by IR spectra and element analysis. A highly sensitive fluorimetric method for the determination of trace amounts of zinc was proposed based on the reaction of Zn^2＋ with DSOD in ethanol at pH 7.00. The linear range of the method was 0-65.0μg·L^-1 with a detection limit of 0. 30μg·L^-1. The interferences of 16 common ions were investigated and the results showed that the DSOD had a good selectivity. The analytical results of detecting trace amounts of Zn^2＋ in zinc rich salt and hair by this method were satisfactory.

关 键 词：双水杨醛草酰二腙 锌 荧光测定技术 

分 类 号：O657.3[理学—分析化学]