多菌灵表面增强拉曼散射检测面临的挑战及克服方法

IF 1.1 4区 物理与天体物理 Q4 NANOSCIENCE & NANOTECHNOLOGY
O. Kulakovich, A. Matsukovich, L. Trotsiuk
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引用次数: 2

摘要

摘要详细介绍了表面增强拉曼散射(SERS)检测农药多菌灵的采样程序。选择了实验参数和建议,以最大限度地减少多菌灵光破坏的副作用,并减少来自银衬底的背景信号。通过实验和密度泛函理论计算数据的比较发现,由于多菌灵相对于银纳米颗粒膜表面的不同取向,SERS谱带在多菌灵光谱中的位置取决于所施加溶剂的性质。从氯仿溶液中吸附优选形成SERS的水溶液,因为分子在银表面上的随机吸附提供了强大的多菌灵鉴定,在SERS光谱中显示出更多的谱带,更高的“信噪比”,然后多菌灵的光破坏过程减慢。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Challenges in surface-enhanced Raman scattering detection of pesticide carbendazim and ways to overcome
Abstract. Considerable details in the sampling procedure for the detection of the pesticide carbendazim by surface-enhanced Raman scattering (SERS) were developed. Experimental parameters and recommendations were selected to minimize side processes of carbendazim photodestruction as well as to reduce the background signal from the silver substrate. It was found from the comparison of experimental and density functional theory calculations data that the position of the SERS bands in the carbendazim spectrum depends on the nature of the applied solvent due to different orientations of carbendazim with respect to the surface of silver nanoparticle film. Adsorption from a chloroform solution is preferable to form an aqueous solution for SERS because random adsorption of molecules on a silver surface provides robust carbendazim identification, displaying a larger number of bands in the SERS spectrum, a higher “signal-to-noise” ratio, and then the processes of carbendazim photodestruction slow down.
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来源期刊
Journal of Nanophotonics
Journal of Nanophotonics 工程技术-光学
CiteScore
2.60
自引率
6.70%
发文量
42
审稿时长
3 months
期刊介绍: The Journal of Nanophotonics publishes peer-reviewed papers focusing on the fabrication and application of nanostructures that facilitate the generation, propagation, manipulation, and detection of light from the infrared to the ultraviolet regimes.
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