Au@Ag-TGANPs based SERS for facile screening of thiabendazole and ferbam in liquid milk
Au@Ag-TGANPs based SERS for facile screening of thiabendazole and ferbam in liquid milk
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DOI：
10.1016/j.saa.2020.118908
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发表时间：
2021-01-15
影响因子：
4.4
通讯作者：
Sun, Da-Wen
中科院分区：
文献类型：
--
作者：
Hussain, Abid;Pu, Hongbin;Sun, Da-Wen
基于巯基乙酸（TGA）功能化的银包覆金纳米粒子（Au@Ag-TGANPs），建立了一种表面增强拉曼光谱法，首次用于液态奶中噻菌灵（TBZ）和福美双（0.025 ~ 10 ppm）的快速检测。结果表明，采用3 nm热重分析法成功制备了核尺寸为32 nm、壳厚度为5 nm的银包覆金纳米粒子（Au@AgNPs）。灵敏的Au@Ag-TGANPs可使TBZ和ferbam的信号分别增强6.4 × 10（4）和9.8 × 10（4）倍，并实现了TBZ和ferbam的检测，检测限为0.12和0.003 ppm，R-2为0.988和0.9821，回收率为88-103%和87.2- 103.5%，相对标准偏差分别为4.1-9.2%和3.5- 8.3%。因此，目前简单和绿色的方法可以用于检测其他不安全的化学品在未来的研究。(C)2020作者（S）由爱思唯尔公司出版
Surface-enhanced Raman spectroscopy based on thioglycolic acid (TGA) functionalized silver-coated gold nanoparticles (Au@Ag-TGANPs) was developed for the facile screening of thiabendazole (TBZ) and ferbam (0.025-10 ppm) in liquid milk for the first time. Results showed that silver-coated gold nanoparticles (Au@AgNPs) with a core size of 32 nm and a shell thickness of 5 nm was successfully modified with 3 nm TGA. The sensitive Au@Ag-TGANPs could enhance TBZ and ferbam signals by factors of 6.4 x 10(4) and 9.8 x 10(4), respectively, and achieved the detection of TBZ and ferbam with limits of detection of 0.12 and 0.003 ppm, R-2 of 0.988 and 0.9821, percent recoveries of 88-103% and of 87.2-103.5%, and relative standard deviations of 4.1-9.2% and 3.5-8.3%, respectively. The current simple and green method could thus be used to detect other unsafe chemicals in future studies. (C) 2020 The Author(s). Published by Elsevier B.V.