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首页> 外文期刊>RSC Advances >Room-temperature phosphorescence probe based on Mn-doped ZnS quantum dots for the sensitive and selective detection of selenite
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Room-temperature phosphorescence probe based on Mn-doped ZnS quantum dots for the sensitive and selective detection of selenite

机译：基于Mn-掺杂ZnS量子点的室温磷光探针，用于Selenite的敏感和选择性检测

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摘要

The room-temperature phosphorescence (RTP) of Mn-doped ZnS quantum dots (Mn–ZnS QDs) was quenched by the addition of selenite in the presence of glutathione. The quenching of the RTP emission of Mn–ZnS QDs was due to HSe ~(?) ions which was the reaction product of selenite and glutathione. Based on the above finding, a simple, rapid, sensitive probe for selective detection of selenite was successfully fabricated. Under the optimal experimental conditions, a linear relationship was obtained covering the linear range of 0.1–5.0 μmol L ~(?1) and the detection limit (3 σ ) was 0.085 μmol L ~(?1) . The proposed method was successfully applied for the determination of selenite in sodium selenite tablets and sodium selenite and vitamin E injection with satisfactory results.
机译：在谷胱甘肽存在下，通过加入硒沸石淬灭MN掺杂ZnS量子点（Mn-ZnS QDS）的室温磷光（RTP）。 Mn-ZnS QDS的RTP排放的淬火是由于HSE〜（？）离子是硒沸石和谷胱甘肽的反应产物。基于上述发现，成功制造了一种简单，快速，敏感的选择性检测探针。在最佳实验条件下，获得线性关系覆盖0.1-5.0μmol1〜（α1）的线性范围，检测极限（3σ）为0.085μmol1〜（α1）。所提出的方法已成功地应用于硒沸石片中的硒沸石和亚硒酸钠和维生素E注射的测定，效果令人满意。

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