硝酸钠消解-ICP-AES法测定TBP萃取剂中钼等5种痕量杂质元素

Determination of Molybdenum,Titanium,Chromium,Vanadium and Tungsten in TBP Extractant by Digestion-ICP-AES Process

研究了用硝酸钠消解-ICP-AES法测定TBP萃取剂中Mo、Ti、Cr、V、W 5种杂质元素，确定了硝酸钠用量、消解温度、消解时间及色层柱分离条件。结果表明，6次测定结果的相对标准偏差均小于5％，加标回收率在96％～100％之间。

Studies to determine Mo ,Ti ,Cr ,V ,W 5 impurity elements in TBP extraction agent by sodium nitrate digestion ICP-AES ,and determine the sodium nitrate consumption ,digestion temperature ,digestion time ,chromatographic column separation conditions .Relative standard deviations （n=6） of the method were less than 5% ,The recovery rate were 96% -100% .