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A novel luminescence method for the estimation of uranyl ions using trimesic acid‑cadmium complex
Microchemical Journal ( IF 4.9 ) Pub Date : 
S. Maji, Satendra Kumar, K. Sundararajan, K. Sankaran

Cadmium ion (Cd2+) with trimesic acid forms water insoluble complex. When uranyl ion (UO22+) is present with Cd2+, the complex shows intense luminescence of UO22+ and it is used for the trace level determination of UO22+ ions. A linear response of luminescence intensity of UO22+ ions was obtained over a concentration range of 1–75 ng mL−1. Analytical data showed that the detection limit of 0.2 ng mL−1 (7.4 × 10−10 M) of UO22+ ion is achieved with a relative standard deviation (RSD) 8.5% (n = 5). The proposed method was successfully applied for quantification of UO22+ ions in natural water and waste water from nuclear fuel processing plant. Furthermore, the estimation of UO22+ ions in cadmium matrix also has been carried out. This study provides a very simple, promising and a novel alternative method for the detection of UO22+ ions in environment.



中文翻译:

偏苯三酸-镉络合物用于估算铀酰离子的新型发光方法

镉离子(Cd 2+)与均苯三酸形成水不溶性复合物。当铀酰离子(UO 2 2+)与Cd 2+一起存在时,该络合物显示出强烈的UO 2 2+发光特性,并用于UO 2 2+离子的痕量测定。在1–75 ng mL -1的浓度范围内,获得了UO 2 2+离子的发光强度的线性响应。分析数据表明,UO 2 2+离子的检出限为0.2 ng mL -1(7.4×10 -10 M),相对标准偏差(RSD)为8.5%(n = 5)。所提出的方法已成功地应用于天然水和核燃料加工厂废水中UO 2 2+离子的定量分析。此外,还进行了镉基质中UO 2 2+离子的估算。这项研究为检测环境中的UO 2 2+离子提供了一种非常简单,有前途和新颖的替代方法。

更新日期:2018-05-01
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