茴香醛席夫碱衍生物的极谱波行为及分析应用

Polarographic Wave of Schiff Base Derivant of Anisaldehyde and Its Application

研究茴香醛的极谱波行为并建立了测定微量茴香醛的示波极谱分析方法。在硫酸介质中 ,对氨基苯磺酸与茴香醛反应生成席夫碱 ,该席夫碱在示波极谱仪上于 - 1.0 7V(vs.SCE)产生一个灵敏极谱波 ,用于间接测定茴香醛 ,其浓度在 2× 10 - 6 ～ 1.5× 10 - 4mol/ L范围内与导数波高呈线性关系。极谱波性质被证明为吸附波。该法具有灵敏、快速简便、结果准确等特点 ,用于食品中微量茴香醛的测定 。

A method for determining the micro anisaldehyde by polarography is proposed.In the situation of sulphuric acid,p aminobenzene sulfonic acid could react with anisaldehyde and produce a Shiff base which creates a sensitive polarographic wave at 1 07 V.The derivative wave height shows a linear relation with the concentration of anisaldehyde in the range of 2×10 -6 to 1 5×10 -4 mol/L (0 272 to 20 40 μg/ml).This polarographic wave is proved to be adsorptive one. The method is used to determining the anisaldehyde in snowberry and icecream with satisfactory results.