镧系元素
检出限
荧光
发光
材料科学
金属有机骨架
碳纤维
线性范围
核化学
纳米技术
化学工程
化学
复合数
复合材料
色谱法
物理化学
有机化学
光电子学
量子力学
物理
工程类
离子
吸附
作者
Mengyao Sun,Lei Zhang,Sen Xu,Bohao Yu,Yajie Wang,Lingyi Zhang,Weibing Zhang
出处
期刊:Analyst
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:147 (5): 947-955
被引量:16
摘要
In this work, carbon dots-decorated hydroxyapatite nanowires-lanthanide metal-organic framework composites were designed and synthesized as ratiometric fluorescent probes for the detection of dopamine. The as-prepared HAPNWs-CDs-Tb/MOF were characterized by TEM, FE-SEM, and FT-IR spectral analysis, illustrating that the HAPNWs-CDs-Tb/MOF comprised hydroxyapatite nanowires that acted as a carrier to form a spinning structure of the lanthanide MOF that was decorated with carbon dots. The as-prepared HAPNWs-CDs-Tb/MOF were luminescent with the green fluorescence of Tb3+ at 543 nm and the blue fluorescence of the CDs at 426 nm as the signal response groups for the detection of DA. The sensor could detect DA in the concentration range of 0-180 μM, with a linear range of 0.04-20 μM and detection limit of 12.26 nM. The method was successfully applied to the detection of DA in human serum. The spiked recoveries were 100.8%-103.3% and the relative standard deviation (RSD) was 3.82%.
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