摘要
用反相离子对色谱方法从工业萘酐中分离出了十几种杂质,并进行了定量测定.在反相色谱体系中,苯酐及马来酸酐等转化成酯和酸,它们可以与萘酐及其它非离子型杂质实现良好的分离.
Nearly twenty impurities have been separated from the industrial grade naphthalic anhydride and have been determined by ionic pair reversed phose HPLC. Some of acid anhydrides such as O - benzendicar-boxylic and malelic anhydride can be transformed to corresponding mono - esters, there fore, they can be separated completely each other. They are also able to be well separated from the nonionic impurities in the raw sample.
出处
《染料工业》
2000年第2期25-26,24,共3页
Dyestuff Industry
