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Controllable Enhanced Ru(bpy)32+ Electrochemiluminescence Detection Systems Based on Eu@MOF253@AuNPs/GCE for the Sensitive Detection of Carbaryl in Food
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2022-05-11 , DOI: 10.1021/acs.jafc.2c01932 Chang Liu 1 , Lin Cai 1 , Yuwei Wang 1 , Haiyang Wang 1 , Guozhen Fang 1 , Shuo Wang 1, 2
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2022-05-11 , DOI: 10.1021/acs.jafc.2c01932 Chang Liu 1 , Lin Cai 1 , Yuwei Wang 1 , Haiyang Wang 1 , Guozhen Fang 1 , Shuo Wang 1, 2
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In this study, an electrochemiluminescence detection system for the sensitive detection of carbaryl was constructed based on the dual identification of Eu@MOF253, which has a recognition effect on carbaryl, and the electrochemiluminescence system of Ru(bpy)32+/S2O82–, which can react with carbaryl in a redox reaction. This method not only overcame the weakness of the electrochemiluminescence instability of the Ru(bpy)32+/S2O82– system but also changed the sensitivity of the sensing detection system to the target by adjusting the concentration of Ru(bpy)32+ and then proposed a detection strategy with a controllable detection range. After analyzing the electrochemiluminescence signal change mechanism of this system and optimizing the detection conditions, it was concluded that the strategy has good linear detection of carbaryl in the range of 1–1000 and 0.02–0.3 μg L–1, and the detection limits were 0.058 and 0.014 μg L–1. Finally, the strategy was also successfully applied to the detection of actual samples.
中文翻译：
基于Eu@MOF253@AuNPs/GCE的可控增强型Ru(bpy)32+电化学发光检测系统用于食品中甲萘威的灵敏检测
本研究基于对甲萘威具有识别作用的Eu@MOF253与Ru(bpy) 3 2+ /S 2 O的电化学发光体系的双重识别，构建了灵敏检测甲萘威的电化学发光检测体系。 8 2-，可与甲萘威发生氧化还原反应。该方法不仅克服了Ru(bpy) 3 2+ /S 2 O 8 2-体系电化学发光不稳定性的弱点，而且通过调节Ru(bpy)的浓度改变了传感检测系统对目标的灵敏度。3 2+然后提出了一种检测范围可控的检测策略。通过分析该系统的电化学发光信号变化机理并优化检测条件，得出该策略在1-1000和0.02-0.3 μg L -1范围内对甲萘威具有良好的线性检测，检测限为0.058。和 0.014 μg L –1。最后，该策略也成功地应用于实际样本的检测。
更新日期：2022-05-11
中文翻译：
基于Eu@MOF253@AuNPs/GCE的可控增强型Ru(bpy)32+电化学发光检测系统用于食品中甲萘威的灵敏检测
本研究基于对甲萘威具有识别作用的Eu@MOF253与Ru(bpy) 3 2+ /S 2 O的电化学发光体系的双重识别，构建了灵敏检测甲萘威的电化学发光检测体系。 8 2-，可与甲萘威发生氧化还原反应。该方法不仅克服了Ru(bpy) 3 2+ /S 2 O 8 2-体系电化学发光不稳定性的弱点，而且通过调节Ru(bpy)的浓度改变了传感检测系统对目标的灵敏度。3 2+然后提出了一种检测范围可控的检测策略。通过分析该系统的电化学发光信号变化机理并优化检测条件，得出该策略在1-1000和0.02-0.3 μg L -1范围内对甲萘威具有良好的线性检测，检测限为0.058。和 0.014 μg L –1。最后，该策略也成功地应用于实际样本的检测。
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