Portable smartphone-assisted RGB-dependent ratiometric sensing platform for the detection of tetrachloro-p-benzoquinone in river samples
文献类型： 外文期刊
作者： Wu, Meng 1 ; Liu, Ting 1 ; Yin, Chenhui 1 ; Jiang, Xinxin 1 ; Sun, Qijun 1 ; Gao, Lei 1 ; Niu, Na 1 ; Chen, Ligang 1 ; Gang, Huixin 3 ;
作者机构： 1.Northeast Forestry Univ, Coll Chem Chem Engn & Resource Utilizat, Key Lab Forest Plant Ecol, Harbin 150040, Peoples R China
2.Chinese Acad Fishery Sci, Heilongjiang River Fisheries Res Inst, Harbin 150010, Peoples R China
3.Northeast Agr Univ, Coll Hort & Landscape Architecture, Harbin 150030, Peoples R China
关键词： Ratiometric fluorescence; RGB analysis; Smartphone identification; Environmental pollutants; Tetrachloro-p-benzoquinone
期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.8； 五年影响因子：4.5 ）
ISSN： 0026-265X
年卷期： 2023 年 190 卷
页码：
收录情况： SCI
摘要： Tetrachloro-p-benzoquinone (TC-PBQ) can be harmful to the environment as a pesticide residue, but its analytical detection has been largely neglected. In this work, a smartphone-assisted RGB-dependent TC-PBQ ratiometric sensing platform for rapid recognition is introduced. Here, the red-emitting mercaptopropionic acid-capped CdTe quantum dots (MPA-capped CdTe) as the reaction unit can be quenched by TC-PBQ, while the blue-emitting carbon dots (CDs) as the reference signal remain unchanged. The limit of detection (LOD) of the sensing platform can reach 59 nM in aqueous solution. By constructing an analysis model with the system RBG value, the smartphone-assisted sensor-coated fluorescent test paper can complete the qualitative and quantitative visual detection of TC-PBQ (LOD is 93 nM). The applicability of smartphone-dependent RGB analysis signifi-cantly simplifies and speeds up the operation process, which provides a new analytical method for real-time analysis of TC-PBQ in real samples.
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