How to Determine Uranium Faster and Cheaper by Adsorptive Stripping Voltammetry in Water Samples Containing Surface Active Compounds
How to Determine Uranium Faster and Cheaper by Adsorptive Stripping Voltammetry in Water Samples Containing Surface Active Compounds
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DOI：
10.1002/elan.201000657
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发表时间：
2011-06-01
期刊：
影响因子：
3
通讯作者：
Koper, Anna
中科院分区：
文献类型：
--
作者：
Grabarczyk, Malgorzata;Koper, Anna
对铜铁试剂存在下悬汞电极伏安法测定铀的方法进行了改进。为了减少表面活性物质的干扰，提出了脉冲电势积累的方法。在2ppm的Tritonu X-100存在下，U(VI)的线性范围为1.7×10~(-10)~2.0×10~(-8)摩尔(-1)，累积时间为60 S，相关系数为0.996。方法用于标准物质NASS-5和河水样品中铀的测定。
A modification of the voltammetric procedure for the determination of uranium in the presence of cupferron using hanging mercury drop electrode is presented. The pulsed potential accumulation was proposed for the minimization of interferences of surface active substances. The calibration plot for U(VI) in the presence of 2 ppm Tritonu X-100 was linear from 1.7 x 10(-10) to 2.0 x 10(-8) molL(-1) for an accumulation time of 60 s, with correlation coefficient of 0.996. The application of this method was tested in the determination of uranium in certified reference material NASS-5 and river water samples.