UV检测肉桂醛碱性水解馏分组成的研究

Study on determination of alkaline hydrolytic system of cinnamaldehyde by UV

研究了肉桂醛碱性水解-水蒸气蒸馏耦合体系馏分中油水两相组成的对应关系,实验结果表明,在常温下苯甲醛(或肉桂醛)在水层中和油层中摩尔分数存在良好的对应关系:x苯甲醛水=31.76 lnx苯甲醛油-46.33;x肉桂醛油=24.03 lnx肉桂醛水-19.17。样品检测时,只用UV检测馏出物水层即可得到油层的组成。

The research studied the relationship of the component of oil-water phase which was prepared by coupling of alkaline hydrolysis-water vapor distillation of cinnamaldehyde. The result of this experiment showed that： there is the definite relationship of mol percent of benzaldehyde （or cinnamaldehyde） in the water layer with oil layer：Xbw= 31.76 InXBo -46.33 ;Xco = 24.03 Inxcw-19.17. The component of the example can be obtained only using UV to analyze the water layer.