• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >Voltammetric Determination of Boron using Cobalt Phthalocyanine Modified Carbon Paste Electrode
【24h】

Voltammetric Determination of Boron using Cobalt Phthalocyanine Modified Carbon Paste Electrode

机译：钴酞菁修饰碳糊电极伏安法测定硼

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

摘要

An alternative mercury-free voltammetric method based on the complexation of boron with alizarinred S (ARS) for the determination of boron using cobalt phthalocyanine modified carbon pasteelectrode (CoPcMCPE) was described. The parameters affecting peak current such as supportingelectrolyte, pH, concentration of ARS and accumulation potential in the method using CoPcMCPE-5 -1 were determined as ammonium acetate-ammonia mixture, pH = 7.5, 1x10 mol L and -800 mV,respectively. The detection and quantitation limits of the method based on the standard deviationcalculated from all points of the calibration equation for accumulation time of 0 and 30 s were-1 -1 calculated as 0.064 and 0.213 mg L , and 9.9 and 32.9 g L , respectively. The method was applied tothe determination of boron in water samples with boron content. The accuracy and repeatability of themethod were checked by applying the standard addition method for 30 s accumulation time, and bycomparing the results obtained from Azomethine H method. The results obtained from two methodswere compared by using student t-test and no statistical difference was found between the results for95% confidence level. The recoveries were calculated in the range of 99-104% and the relativestandard deviations were below 10%.
机译：描述了一种基于硼与茜素化S络合的无汞伏安法（ARS），使用钴酞菁修饰的碳糊电极（CoPcMCPE）测定硼。在使用CoPcMCPE-5 -1的方法中，确定影响峰值电流的参数，例如支持电解质，pH，ARS浓度和累积电势，分别为乙酸铵-氨水混合物，pH = 7.5、1x10 mol L和-800 mV。该方法基于标准偏差的检测限和定量限是从校准方程的所有点计算得出的，累积时间分别为0和30 s为-1 -1，分别为0.064和0.213 mg L，以及9.9和32.9 gL。该方法用于水样中硼含量的测定。通过使用标准添加方法累积30 s的时间，并比较从Azomethine H方法获得的结果，检查了方法的准确性和可重复性。使用学生t检验比较了两种方法的结果，结果在95％的置信水平下没有发现统计学差异。计算的回收率在99-104％的范围内，相对标准偏差在10％以下。

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