摘要
用一般的物理化学方法不能分离的偶氮苯和苏丹4号混合物改用薄层分离的方法,结果表明:选择苯:乙酸乙酯=9:1 展开剂的分离效果最好,Rf值稳定,展层分离时间为50分钟,是目前分离鉴定混合染料比较理想的展开剂。
use the physics chemical method cannot separate the azobenzene and No. 4 sudan in mixture, but we can change use of the method of thin layer separates. The result expresses: select benzene:ethy acetate =9:1 launch separating agent is the best way to separation Rf value stability, and the exhibition layer separates time is 50 minutes. It is much better current to separate. to authenticate the mixture dyestuff of the launch separating agent.
关键词
偶氮苯
苏丹4号
混合物
薄层分离
染料
azobenzenei
No. 4 sudan dyestuff
mixture
thin layers separation
