Hydrometallurgy Section, Bhabha Atomic Research Centre, Mumbai 400085, India.
Talanta. 2011 Aug 15;85(2):1217-20. doi: 10.1016/j.talanta.2011.04.067. Epub 2011 May 5.
A precise, sensitive and selective method for the spectrophotometric determination of palladium (II) using N,N,N',N'-tetra(2-ethylhexyl) thiodiglycolamide T(2EH)TDGA as an extractant is described. Palladium (II) forms yellow colored complex with T(2EH)TDGA which exhibits an absorption maximum at ∼ 300 nm. The colored complex obeys Beer's law in the concentration range 1.0-15.0 μg ml(-1) of palladium with a molar absorptivity of 1.29 × 10(5)M(-1)cm(-1). The effects of various experimental parameters have been studied to establish the optimum conditions for the extraction and determination of palladium. The precision of the method has been evaluated and the relative standard deviation has been found to be less than 0.5%. The method has been successfully applied to the determination of palladium in simulated high level liquid waste (SHLW) solution.
本文描述了一种使用 N,N,N',N'-四(2-乙基己基)硫代二甘醇酰胺 T(2EH)TDGA 作为萃取剂，用于分光光度法测定钯(II)的精确、灵敏和选择性方法。钯(II)与 T(2EH)TDGA 形成黄色配合物，在 ∼ 300nm 处有最大吸收。有色配合物在 1.0-15.0μg ml(-1)钯浓度范围内遵守比尔定律，摩尔吸光系数为 1.29×10(5)M(-1)cm(-1)。研究了各种实验参数的影响，以确定萃取和测定钯的最佳条件。该方法的精密度已经过评估，相对标准偏差小于 0.5%。该方法已成功应用于模拟高放废液 (SHLW) 溶液中钯的测定。
