NIMTE OpenIR  > 2018专题
A colorimetric sensor based on citrate-stabilized AuNPs for rapid pesticide residue detection of terbuthylazine and dimethoate
Chen, Ningyi; Liu, Hongyu; Zhang, Yujie; Zhou, Zhuangwei; Fan, Wenpei; Yu, Guocan; Shen, Zheyu; Wu, Aiguo
2018
发表期刊SENSORS AND ACTUATORS B-CHEMICAL
卷号255页码:3093-3101
摘要A new colorimetric sensor based on citrate-stabilized AuNPs was proposed for the rapid pesticide residue detection of both terbuthylazine (TBA) and dimethoate (DMT) with ultra-sensitivities and high selectivities. The detection mechanisms have been verified via FT-IR, UV-vis spectra, Zeta Potential, TEM and DLS. Under the optimized experimental conditions, 30 kinds of potential environmental pollutants have no interference on the TBA or DMT detection indicating the high selectivities of our AuNP-based colorimetric sensor. The limit of detections (LODs) of TBA and DMT by eye vision are respectively 0.3 mu M and 20 nM, and those based on calculation (3 sigma/S) are 0.02 mu M and 6.2 nM, respectively. The minimum detectable concentrations of TBA or DMT are much lower than the maximum residue limit (MRL) regulated by the governments of EU and China. The linear relationships of the UV-vis spectrometry demonstrate that our AuNP-based colorimetric sensor can be used for the quantitative analysis of TBA in the range of 0.1-0.9 mu M, and DMT in the range of 1-40 nM. Finally, our AuNP-based colorimetric sensor is also verified to have a good practical applicability for TBA or DMT detection in the real environmental samples. (C) 2017 Elsevier B.V. All rights reserved.
关键词Resonance Energy-transfer Gold Nanoparticles Triazine Herbicides Mass-spectrometry Organophosphorus Pesticides Liquid-chromatography Aqueous-solution Polymer Degradation Biosensor
学科领域Chemistry ; Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/16851
专题2018专题
推荐引用方式
GB/T 7714
Chen, Ningyi,Liu, Hongyu,Zhang, Yujie,et al. A colorimetric sensor based on citrate-stabilized AuNPs for rapid pesticide residue detection of terbuthylazine and dimethoate[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,255:3093-3101.
APA Chen, Ningyi.,Liu, Hongyu.,Zhang, Yujie.,Zhou, Zhuangwei.,Fan, Wenpei.,...&Wu, Aiguo.(2018).A colorimetric sensor based on citrate-stabilized AuNPs for rapid pesticide residue detection of terbuthylazine and dimethoate.SENSORS AND ACTUATORS B-CHEMICAL,255,3093-3101.
MLA Chen, Ningyi,et al."A colorimetric sensor based on citrate-stabilized AuNPs for rapid pesticide residue detection of terbuthylazine and dimethoate".SENSORS AND ACTUATORS B-CHEMICAL 255(2018):3093-3101.
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