摘要
采用紫外光谱法对以苯酚为原料通过Reimer-Tiemann反应合成的水杨醛产物进行了水杨醛含量的测定。结果表明，采用环己烷作为溶剂，吸收波长为328mm，在0．005～0．050g／L范围内，水杨醛的吸光度与浓度呈线性关系，相对标准偏差不大于0．12％（n=5），加标回收率为99．09％。
The content of salicylaldehyde in the product that was synthesized from phenol by the Reimer - Tiemann reaction was determined by UV sepetrophotometry. The measured result showed that the lengths of absorption wave was 328 nnl with the eyelo- hexane as solvent. In the range of 0. 005 g/L to 0. 050 g/L, the salieylaldehyde absorbanee was linear with concentration. The RSD was not more than 0.12% （ n = 5） , and the recovery was 99.09%.
出处
《化学分析计量》
CAS
2008年第2期45-47,共3页
Chemical Analysis And Meterage
关键词
紫外光谱法
水杨醛
测定
ultraviolet sepctrophotometry, salicylaldehyde, determination
