一种新型供体-受体荧光探针用于高选择性锌检测及其在试纸条中的应用。
A Novel Donor-Acceptor Fluorescent Sensor for Zn with High Selectivity and its Application in Test Paper.
机构信息
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, People's Republic of China.
Department of Ecology and Environment, Yuzhang Normal University, Nanchang, 330103, People's Republic of China.
出版信息
J Fluoresc. 2020 Dec;30(6):1567-1574. doi: 10.1007/s10895-020-02609-9. Epub 2020 Aug 27.
A novel donor-acceptor fluorescent sensor was designed and synthesized. The sensor exhibited high selectivity and sensitivity to Zn in acetonitrile solution. When 3.0 equiv. of Zn was added gradually, the emission intensity at 500 nm increased 54-fold, accompanied by the fluorescent color of the solution changed from dark to green. Job's plot and ESI-MS were carried out to verify a 1:1 stoichiometric complex was formed between the sensor and Zn. The limit of detection (LOD) to Zn was measured to be 2.81 × 10 mol L. Moreover, the sensor not only could be used to detect Zn in practical water samples with high accuracy, but also could be made into test paper for the qualitative detection for Zn.
设计并合成了一种新型的给体-受体荧光传感器。该传感器在乙腈溶液中对 Zn 表现出高选择性和高灵敏度。当逐渐加入 3.0 当量的 Zn 时，500nm 处的发射强度增加了 54 倍，同时溶液的荧光颜色从暗变为绿色。进行了 Job 图和 ESI-MS 实验以验证传感器与 Zn 形成了 1:1 的化学计量比配合物。测定了该传感器对 Zn 的检测限（LOD）为 2.81×10-7 mol L-1。此外，该传感器不仅可以用于实际水样中 Zn 的高精确度检测，还可以制成用于 Zn 定性检测的试纸。
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