• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of automatic chemistry >Development of a Flow Injection System for Differential Pulse Amperometry and Its Application for Diazepam Determination
【24h】

Development of a Flow Injection System for Differential Pulse Amperometry and Its Application for Diazepam Determination

机译：差分脉冲电流法流动注射系统的开发及其在地西am测定中的应用

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This work presents the development of a flow injection system for differential pulse amperometry (DPA) for diazepam determination in the presence of oxygen. The thin flow cell consisted of the bare glassy carbon electrode, reference silver/silver chloride, and stainless steel as the auxiliary electrode. Electrochemical reduction of diazepam (DZP) was characterised by cyclic voltammetry. Azomethine reduction peak was used for DZP quantification. The detector response was linear in the range 20–250?μmol/dm3 of diazepam, with a calculated detection limit of 3.83?μg/cm3. Intraday and interday precision were 1.53 and 10.8%, respectively. The method was applied on three beverage samples, energetic drink, and two different beer samples, and obtained recoveries were from 93.65 up to 104.96%. The throughoutput of the method was up to 90 analyses per hour.
机译：这项工作提出了一种用于在存在氧气的情况下测定地西epa的差分脉冲电流法（DPA）的流动注射系统的开发。薄流通池由裸露的玻璃碳电极，参比银/氯化银和不锈钢作为辅助电极组成。用循环伏安法表征了地西epa的电化学还原反应。偶氮甲碱还原峰用于DZP定量。地西epa的检测器响应是线性的，范围为20–250？μmol/ dm3，计算出的检测限为3.83？μg/ cm3。日内和日间精确度分别为1.53和10.8％。该方法应用于三种饮料样品，高能饮料和两种啤酒样品，回收率从93.65到104.96％。该方法的每小时产量高达90次分析。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号