四苯硼钠—季铵盐容量法快速测钾
Rapid Determination of Potassium Content by Sodium Tetraphenylboron-quaternary Ammonium Salt Volumetric Method
  
DOI:
中文关键词:  四苯硼钠  季铵盐  容量法  钾测定  达旦黄  松节油
英文关键词:Sodium tetraphenylborate  Quaternary ammonium salt  Volumetric method  Determination of potassium content  Titan yellow  Turpentine
基金项目:
作者单位
冉广芬,马海州,孟瑞英,陈育刚 中国科学院青海盐湖研究所,青海,西宁,810008 
摘要点击次数: 308
全文下载次数: 0
中文摘要:
      用四苯硼钠—季铵盐容量法间接测定钾,并与四苯硼钠重量法进行比较。测定1%以上的钾含量时,相对误差〈l%,平均回收率为99.52%,标准偏差分别为0.0082、0.0073,变异系数分别为0.82%、0.33%(RSD,n=7)。该方法操作简便、快速、准确,适用于含钾产品的中间控制分析及钾盐、卤水、盐化工产品、钾肥中钾的快速测定。
英文摘要:
      The paper determinates the sample potassium content by sodium tetraphenylboron-quaternary ammonium salt volumetric method, and compares this method with sodium tetraphenylborate gravimetrie method. The relative error of determination of potassium content is less than 1% when potassium content is more than 1%. Experimental results show that average recovery is 99. 52%, standard deviations are 0. 008 2 and 0. 007 3 ,respectively, and coefficients of variation are 0. 82% and 0. 33% ( RSD,n =7), respectively. This simple, rapid and accurate method can be applied to the middle control analysis of potassium product and rapid determination of potassium content in potassium salt, brine, chemical salt prod- uet and potassium fertilizer.
查看全文  查看/发表评论  下载PDF阅读器
关闭