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首页> 外文期刊>International journal of environmental analytical chemistry >Determination of trace uranium (VI) using its self-assembly with a tetradentate-monodentate ditopic ligand by resonance light scattering
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Determination of trace uranium (VI) using its self-assembly with a tetradentate-monodentate ditopic ligand by resonance light scattering

机译：共振光散射法与四齿-单齿双位配体自组装测定痕量铀（VI）

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摘要

We describe here a resonance light scattering (RLS) method for uranium (VI) detection by using phosphorylethanol-amido-salophen (PAS) as optical probe. PAS is a tetradentate-monodentate ditopic ligand in which the tetradentate and monodentate ligands are salophen moiety and phosphate group, respectively. PAS can chelate uranyl with its salophen moiety. The chelated uranyl can connect phosphate group in another PAS through coordination reaction. This causes the self-assembly of PAS with uranyl to form a metallo-supramolecular polymer, resulting in a production of strong RLS signal. The RLS method was established based on the self-assemble. The RLS intensity is linearly related to the concentration of uranium (VI) in the 0.8-32 ng mL(-1) range, with a detection limit of 0.24 ng mL(-1) detection limit under optimal conditions. The method was successfully applied to determine uranium (VI) in environmental water samples with the recoveries between 97.1% and 102.6%.
机译：我们在这里描述了一种共振光散射（RLS）方法，用于通过使用磷酰乙醇酰胺基salophen（PAS）作为光学探针检测铀（VI）。 PAS是四齿-单齿双位配体，其中四齿和单齿配体分别为Salophen部分和磷酸基团。 PAS可以将铀酰及其Salophen部分螯合。螯合的双氧铀可以通过配位反应连接另一个PAS中的磷酸基团。这导致PAS与铀酰的自组装形成金属超分子聚合物，从而产生强RLS信号。基于自组装建立了RLS方法。 RLS强度与铀（VI）浓度在0.8-32 ng mL（-1）范围内线性相关，在最佳条件下的检出限为0.24 ng mL（-1）。该方法已成功用于测定环境水样中的铀（VI），回收率在97.1％至102.6％之间。

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