Selective detection of glufosinate using CuInS2 quantum dots as a fluorescence probe
Selective detection of glufosinate using CuInS2 quantum dots as a fluorescence probe
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使用 CuInS2 量子点作为荧光探针选择性检测草铵膦
DOI：
10.1039/c7ra08848e
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发表时间：
2017-10
期刊：
影响因子：
3.9
通讯作者：
Zhang Zhengzhu
中科院分区：
文献类型：
--
作者：
Zhu Fengyuan;Zhu Jing;Zhang Zhengzhu
We designed a novel method for rapid detection of glufosinate, based on quantum dots (QDs) as a fluorescence probe. To date, no studies have been published on the detection of glufosinate using QDs. The innovation of this fluorescence system, which was constructed using CuInS2 QDs and Cu(IDA)·2H2O, is based on the use of intermolecular hydrogen bonds between Cu(IDA)·2H2O and carboxyl group (–COOH) to detect glufosinate. In the fluorescence “turn-on” step, the presence of glufosinate induces the release of Cu(IDA)·2H2O from the surface of the QDs, resulting in fluorescence intensity recovery. This method was performed in relatively clean aqueous solutions. Under optimal conditions, the calibration curve of the method showed good linearity for glufosinate, with a correlation coefficient (R2) of 0.99597. The method was employed to detect glufosinate on fresh tea-leaves, with satisfactory results.
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