苯胺的荷移分光光度法测定

【作者】 吴昊； 庞涛涛； 杜黎明；

【机构】 山西师范大学分析测试中心；

【摘要】 <正>苯胺类物质毒性大,有明显的致癌作用。因此,对苯胺类物质的测定是环境监测中一项十分重要的内容。测定苯胺的方法有分光光度法、荧光光谱法和紫外检测-高效液相色谱法等。本文研究了电子受体7,7,8,8-四氰基对苯醌(TCNQ) 与苯胺的荷移络合物的光谱性质,发现苯胺与TC- NQ在甲醇介质中极易发生荷移反应并生成稳定的更多还原

【Abstract】 Charge transfer complex was formed between Aniline as the donor and 7,7,8, 8-Tetracyano-quinodmethane (TCNQ) as the acceptor has been studied by spectrumphotomatric method. In the presence of methanol, the two compounds can easy react to form the stable charge - transfer complex. The products have absorption maximum at 461 nm. Different variables and parameters affecting the reactions were studied and optimized . The results show that Beer’s law is obeyed in the ranges 0.5-20 mg/L. Therefore, a simple, rapid, accurate and sensitive method for the determination of Aniline has been developed. The method has been applied to the determination of Aniline in water.更多还原