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基于RhB@ZIF-8比率型荧光传感器的制备及其在环境检测方面的应用研究
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Abstract:
本文通过一种在MOF晶体形成过程中将染料封装的方法，合成了一种单波长下单发射的比率荧光材料RhB@ZIF-8。基于RhB@ZIF-8构建的荧光传感器能够对盐酸多西环素(Dox)快速响应，检测限低至0.026 μM。将该方法应用到实际样品中Dox的测定，加标回收率在91%~103%范围内，相对标准偏差为0.59%~1.34%。此外，利用RhB@ZIF-8制备的荧光传感试纸，对实际样品中Dox的检测适用性良好。该传感器具有操作简单、灵敏度高、选择性好、可视化检测等优点，有望实现对实际环境中Dox的快速目视化检测。
In this work, dyes were easily encapsulated during the production of MOF crystals to create the single wavelength, single emission ratio fluorescent material RhB@ZIF-8. The fluorescence sensor based on RhB@ZIF-8 can respond quickly to doxycycline hydrochloride (Dox) with a detection limit as low as 0.026 μM. The technique was applied to the determination of Dox in real samples and the relative standard deviations were 0.59%~1.34%, and the recoveries ranged from 91% to 103%. Furthermore, there is good applicability of the fluorescence sensing paper made by RhB@ZIF-8 for the detection of Dox in real samples. The sensor has the advantages of simple operation, high sensitivity, good selectivity, visual detection, etc., and is expected to achieve rapid visual detection of Dox in the actual environment.
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