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Applications of copper nanoparticles for colorimetric detection of dithiocarbamate pesticides
Journal of Nanostructure in Chemistry ( IF 8.6 ) Pub Date : 2019-03-04 , DOI: 10.1007/s40097-019-0299-4
Saima Ameen Ghoto , Muhammad Yar Khuhawar , Taj Muhammad Jahangir , Jamal ul Din Mangi

In this report an expeditious, manageable and uncomplicated advancement has been demonstrated in the field of nanoparticles for sensing dithiocarbamates (DTCs) Ziram, Zineb, and Maneb pesticides in environment and juice samples using cetyltrimethyl ammonium bromide (CTAB)-capped copper nanoparticles (CTAB-Cups) as colorimetric probe. The probe was prepared in aqueous solvent using CTAB and hydrazine monohydrate. Localized surface plasmon resonance band of the prepared sensor was scanned by UV–visible spectrophotometer. Further Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy, energy-dispersive X-ray spectroscopy (EDX), zeta potential and dynamic light scattering (DLS) techniques were employed to reveal the interaction, functionality, surface characteristics and particle size. Probe was used competently for colorimetric sensing of Ziram, Zineb, and Maneb belonging to the DTCs group of pesticides. Sudden change in color from reddish wine to yellow was noted visibly and monitored on spectrophotometer, FTIR, EDX, zeta potential and DLS. The probe indicated very susceptible and selective colorimetric detection of DTCs within the range of 97.9–489.3 ng/ml, 8.8–44.1 ng/ml and 8.4–42.4 ng/ml for Ziram, Zineb and Maneb. The designed method yielded very rapid and organized procedure for detection of DTCs with minimal sample preparations. The method was used for the analysis of DTCs spiked tap water, tomato extract, mango juice, and recoveries of DTCs were obtained within 95.8–108.5% with relative standard deviation within 0.14–1.11%.

中文翻译:

铜纳米颗粒在二硫代氨基甲酸酯类农药比色检测中的应用

在本报告中,已经证明了纳米颗粒领域中使用十六烷基三甲基溴化铵(CTAB)封端的铜纳米颗粒(CTAB-)可以检测环境和果汁样品中的二硫代氨基甲酸酯(DTC)Ziram,Zineb和Maneb农药的纳米颗粒领域的快速发展。杯)作为比色探针。使用CTAB和一水合肼在水性溶剂中制备探针。用紫外可见分光光度计扫描所制备传感器的局部表面等离子体共振带。进一步的傅里叶变换红外光谱(FTIR),扫描电子显微镜,能量色散X射线光谱(EDX),ζ电位和动态光散射(DLS)技术被用来揭示相互作用,功能,表面特性和粒径。探针可胜任地用于DTC农药组的Ziram,Zineb和Maneb的比色传感。可见从红葡萄酒到黄颜色的突然变化,并在分光光度计,FTIR,EDX,ζ电位和DLS上监控。探针表明,对于Ziram,Zineb和Maneb,DTC的敏感度和选择性比色检测非常敏感,范围为97.9–489.3 ng / ml,8.8–44.1 ng / ml和8.4–42.4 ng / ml。设计的方法产生了非常快速且有条理的程序,只需最少的样品制备即可检测DTC。该方法用于DTC的加标自来水,番茄提取物,芒果汁的分析,DTC的回收率在95.8-108.5%之内,相对标准偏差在0.14-1.11%之内。可见从红葡萄酒到黄颜色的突然变化,并在分光光度计,FTIR,EDX,ζ电位和DLS上监控。探针表明,对于Ziram,Zineb和Maneb,DTC的敏感度和选择性比色检测非常敏感,范围为97.9–489.3 ng / ml,8.8–44.1 ng / ml和8.4–42.4 ng / ml。设计的方法产生了非常快速且有条理的程序,只需最少的样品制备即可检测DTC。该方法用于DTC的加标自来水,番茄提取物,芒果汁的分析,DTC的回收率在95.8-108.5%之内,相对标准偏差在0.14-1.11%之内。可见从红葡萄酒到黄颜色的突然变化,并在分光光度计,FTIR,EDX,ζ电位和DLS上监控。探针表明,对于Ziram,Zineb和Maneb,DTC的敏感度和选择性比色检测非常敏感,范围为97.9–489.3 ng / ml,8.8–44.1 ng / ml和8.4–42.4 ng / ml。设计的方法产生了非常快速且有条理的程序,只需最少的样品制备即可检测DTC。该方法用于DTC的加标自来水,番茄提取物,芒果汁的分析,DTC的回收率在95.8-108.5%之内,相对标准偏差在0.14-1.11%之内。探针表明,对于Ziram,Zineb和Maneb,DTC的敏感度和选择性比色检测非常敏感,范围为97.9–489.3 ng / ml,8.8–44.1 ng / ml和8.4–42.4 ng / ml。设计的方法产生了非常快速且有条理的程序,只需最少的样品制备即可检测DTC。该方法用于DTC的加标自来水,番茄提取物,芒果汁的分析,DTC的回收率在95.8-108.5%之内,相对标准偏差在0.14-1.11%之内。探针表明,对于Ziram,Zineb和Maneb,DTC的敏感度和选择性比色检测非常敏感,范围为97.9–489.3 ng / ml,8.8–44.1 ng / ml和8.4–42.4 ng / ml。设计的方法产生了非常快速且有条理的程序,只需最少的样品制备即可检测DTC。该方法用于DTC的加标自来水,番茄提取物,芒果汁的分析,DTC的回收率在95.8-108.5%之内,相对标准偏差在0.14-1.11%之内。
更新日期:2019-03-04
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