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对氯水杨酸的纯度测定

Release time:2021-03-15  Hits:

  • Key Words:对氯水杨酸;;UV分光光度法;;双波长法
  • Abstract:采用双波长法对对氯水杨酸的纯度进行了测定。对氯水杨酸在乙醇中的最大吸收波长为243 nm,副产物等吸收总波长为267 nm。测定纯对氯水杨酸的标准纯度都超过99.5%,测定市售3种对氯水杨酸的纯度在97.8%~98.0%。研究表明,该方法操作简单,分析数据准确可靠。
  • Volume:v.43;No.273
  • Issue:11
  • Translation or Not:no
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