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使用MWCNTs-CS@NGQDs复合物改性玻璃碳电极对危险除草剂迪龙的电化学测定

Jin Zhu¹, Yi He¹, Lijun Luo¹

¹Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China.

|August 25, 2023

概括

一个新的电化学传感器使用修改后的电极检测二 (DU) 污染. 这种创新方法在水和土壤等环境样本中提供了灵敏而可靠的DU检测.

科学领域:

环境科学环境科学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

来自除草和运输的二 (DU) 污染对人类健康构成风险.
环境中的农药残留物需要敏感的检测方法.

研究的目的:

开发一种创新的电化学传感器,用于敏感的二 (DU) 检测.
使用酸盐封装的多壁碳纳米管 (MWCNTs-CS) 结合化石墨烯量子点 (NGQDs) 来提高传感能力.

主要方法:

用MWCNTs-CS@NGQDs复合材料制造一个修改的玻璃碳电极 (GCE).
使用TEM,UV-Vis和zeta潜力进行复合材料的表征.
使用循环电压测量 (CV) 和电化学阻抗光谱 (EIS) 的电化学分析.
在环境样本 (河水,土壤) 中检测二 (DU).

主要成果:

MWCNTs-CS@NGQDs/GCE传感器显示了增强的电子转移和活性表面积.
高灵敏度和低检测极限 (0.04μg mL-1) 对DU.
广泛的线性范围 (0.0812μg mL-1),以及出色的稳定性和抗干扰.
在河水 (99.4104%的回收) 和土壤 (90.094.6%的回收) 中成功确定了DU.

结论:

开发的电化学传感器提供了一种敏感,稳定和可重复的DU检测方法.
这种方法为监测环境污染物提供了方便和有效的分析技术.
该传感器在现实世界样本中对各种生物活性物种的确定具有前景.

关键词:

迪乌龙 (Diuron) 是一种素.电化学传感器是一种电化学传感器.多壁碳纳米管是多壁的碳纳米管.用剂合的石墨烯量子点量子点.

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