利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN101285777A 同时测定六氟化铀中Mo、Ti和W元素的方法 失效 - 权利终止

同时测定六氟化铀中Mo、Ti和W元素的方法
摘要：
一种同时测定六氟化铀中Mo、Ti和W元素的方法，属于化学分析领域。其特征在于神经网络分光光度法同时测定六氟化铀中Mo、Ti和W元素的方法为：(4～8)mol/L盐酸用量在(0.5～1.0)mL；(1～3)×10－3mol/L水杨基荧光酮用量在(2.5～3.5)mL；(1～3)×10－2mol/L溴化十六烷基三甲胺用量在(3.0～6.0)mL；显色时间为(10－60)min.。本发明将神经网络与分光光度法相结合，发挥了分光光度法优点，且在多组分同时测定时简化了化学处理过程。不仅可为分光光度法同时测定六氟化铀中多种杂质元素提供一种准确的化学计量学方法，而且还可推广到其它铀化合物的分析领域。该方法测定六氟化铀中Mo、Ti和W元素的含量范围分别为：(0.5～7.0)μg/gU、(0.3～5.0)μg/gU、(0.5～7.0)μg/gU。
摘要（英）：

The invention relates to a method for simultaneously determining Mo element, Ti element and W element in uranic fluoride, belonging to the chemical analysis field. The invention is characterized in that the method for simultaneously determining the Mo element, the Ti element and the W element through a neutral network spectrophotometry is as follows: the dosage of 4 to 8 mol/L hydrochloric acids is between 0.5 and 1.0 mL; the dosage of (1-3)x10<-3>mol/L salicyl fluorone is between 2.5 and 3.5 mL; the dosage of (1-3) x10<-2>mol/L cetrimide is between 3.0 and 6.0 mL; and the color development time is between 10 and 60 minutes. The method combines a neutral network and a spectrophotometry, gives full play to the advantages of the spectrophotometry and simplifies the chemical treatment process when a plurality of compositions are determined simultaneously. The method not only can provide an accurate chemometrics method for simultaneously determining a plurality of impurity elements in the uranic fluoride through the spectrophotometry but also can be promoted to the other uranium compound analysis field. The content ranges of the Mo element, the Ti element and the W element in the uranic fluoride determined by the method are respectively 0.5 to 7.0mu g/gU,0.3 to 5.0mu g/gU and 0.5 to 7.0mu g/gU.

公开/授权文献
0/0