Development of fluorescent FeIII sensor based on chalcone

文献类型： 外文期刊

第一作者： Wei, Yanli

作者： Wei, Yanli;Wang, Wenyan;Bian, Wei;Shuang, Shaomin;Dong, Chuan;Qin, Guojie

作者机构：

关键词： 4-Dimethylamino 2;5-dihydroxy chalcone;Fe~3 ion;Fluorescence quenching;Intramolecular charge transfer;Optochemical sensor

期刊名称：JOURNAL OF LUMINESCENCE （ 影响因子：3.599； 五年影响因子：3.006 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In this paper, 4-dimethylamino 2,5-dihydroxy chalcone (DMADHC), which exhibits excited state intramolecular charge transfer (ICT) characteristics, was synthesized and characterized. A sensitive optochemical sensor for Fe ~3 ion was developed using DMADHC as fluorescence receptor. The fluorescence of DMADHC was gradually quenched with the addition of Fe ~3 ion, which attributed to the formation of 1:1 complex between DMADHC and Fe~3 ion. The sensor exhibited excellent selectivity for Fe~3 ion over a large number of cation ions such as alkali, alkaline earth and transitional metal ions with a linear range of 3.984×10 ~(-7)1.135×10~(-5) and a limit of detection of 8.223×10~(-8) mol/L. On this basis, the sensor was preliminary applied to the determination of the content of iron ions in multi-vitamin tablet with satisfied results and the recoveries were in the 95100% interval, and precision (n=5) was better than 5%.

分类号： O43

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