期刊
FOOD CHEMISTRY
卷 370, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.131276
关键词
SERS; Au@Ag core-shell nanorods; Thiabendazole; Fruit juice; Synergistic enhancement
资金
- National Key Research and Development Program of China [2017YFC1600806, 2018YFD0400800, 2017YFC1600805]
- National Natural Science Foundation of China [31801631, 31671844, 1601360061]
- Natural Science Foundation of Jiangsu Province [BK20160506, BE2016306, BK20180865]
- International Science and Technology Cooperation Project of Jiangsu Province [BZ2016013, BZXB20200212]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- China Postdoctoral Science Foundation [2019M661760]
- earmarked fund for China Agricultural Research System
This study introduced an effective and sensitive SERS substrate for rapid detection of thiabendazole in fruit samples. The core-shell gold/silver nanorod (Au@Ag NRs) substrate showed excellent SERS effect, low detection limits, and high recovery rates, indicating its great potential for detecting fruit pesticides residues.
This study presented an effective and sensitive SERS substrate for rapid detection of thiabendazole (TBZ) in fruit samples. A core-shell gold/silver nanorod (Au@Ag NRs) has been synthesized as a bimetallic SERS-active substrate. The obtained substrate showed an excellent SERS effect because of the tunable plasmon resonance of Au NRs, the significantly enhanced effect of silver, and the bimetallic synergistic effect of Au@Ag NRs. Under optimal conditions, the substrate was used to detect TBZ in fresh apple juice and peach juice with limits of detection of 0.032 and 0.034 ppm respectively. In addition, the recovery rate was within a satisfactory range of 95-101%, indicating that the Au@Ag NRs substrate could be a SERS detection platform for fruit pesticides residues with great development potential.
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