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A Facile, Sensitive and Rapid Sensing Platform based on CoZnO for Detection of Fipronil; an Environmental Toxin
Electroanalysis ( IF 2.7 ) Pub Date : 2020-06-18 , DOI: 10.1002/elan.202000051 Sanni Kumar 1 , Natalia Vasylieva 2 , Vikrant Singh 3 , Bruce Hammock 2 , Shiv Govind Singh 1
Electroanalysis ( IF 2.7 ) Pub Date : 2020-06-18 , DOI: 10.1002/elan.202000051 Sanni Kumar 1 , Natalia Vasylieva 2 , Vikrant Singh 3 , Bruce Hammock 2 , Shiv Govind Singh 1
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A sensitive detection of extremely toxic phenylpyrazole insecticide, 'Fipronil' is presented. Currently, the advancement of approaches for the detection of insecticides at low concentrations with less time is important for environmental safety assurance. Considering this fact, an effort has been made to develop an electrospun CoZnO nanofiber (NF) based label-free electrochemical system for the detection of fipronil. The CoZnO NF were characterized using different techniques including field emission scanning electron microscopy (FE-SEM), Energy Dispersive X-Ray Analysis (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and Raman Spectroscopy. Based on the experimental results, the proposed platform displayed a linear response for fipronil in the attogram/mL range despite the multiple interfering agents. The sensitivity of the device was found to be 3.99 Kῼ (g/ml)-1 cm-2. Limit of detection (LOD) and limit of quantification (LOQ) were calculated and found to be 112 ag mL-1 and 340 ag mL-1 respectively. Further, this proposed sensor will be implemented in the fields for the rapid and proficient detection of the real samples.
中文翻译：
基于CoZnO的简便、灵敏、快速的氟虫腈检测平台；环境毒素
提出了一种对剧毒苯基吡唑杀虫剂“氟虫腈”的灵敏检测。目前，在更短的时间内检测低浓度杀虫剂的方法的进步对于环境安全保证很重要。考虑到这一事实，已经努力开发基于电纺 CoZnO 纳米纤维 (NF) 的无标记电化学系统，用于检测氟虫腈。CoZnO NF 使用不同的技术进行表征，包括场发射扫描电子显微镜 (FE-SEM)、能量色散 X 射线分析 (EDX)、X 射线衍射 (XRD)、傅里叶变换红外光谱 (FTIR) 和拉曼光谱. 根据实验结果，尽管存在多种干扰剂，但所提出的平台在阿克/毫升范围内显示出对氟虫腈的线性响应。发现该设备的灵敏度为 3.99 Kῼ (g/ml)-1 cm-2。计算检测限 (LOD) 和定量限 (LOQ)，发现分别为 112 ag mL-1 和 340 ag mL-1。此外，这种提议的传感器将在实际样品的快速和熟练检测领域中实施。
更新日期：2020-06-18
中文翻译：
基于CoZnO的简便、灵敏、快速的氟虫腈检测平台；环境毒素
提出了一种对剧毒苯基吡唑杀虫剂“氟虫腈”的灵敏检测。目前，在更短的时间内检测低浓度杀虫剂的方法的进步对于环境安全保证很重要。考虑到这一事实，已经努力开发基于电纺 CoZnO 纳米纤维 (NF) 的无标记电化学系统，用于检测氟虫腈。CoZnO NF 使用不同的技术进行表征，包括场发射扫描电子显微镜 (FE-SEM)、能量色散 X 射线分析 (EDX)、X 射线衍射 (XRD)、傅里叶变换红外光谱 (FTIR) 和拉曼光谱. 根据实验结果，尽管存在多种干扰剂，但所提出的平台在阿克/毫升范围内显示出对氟虫腈的线性响应。发现该设备的灵敏度为 3.99 Kῼ (g/ml)-1 cm-2。计算检测限 (LOD) 和定量限 (LOQ)，发现分别为 112 ag mL-1 和 340 ag mL-1。此外，这种提议的传感器将在实际样品的快速和熟练检测领域中实施。
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