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Citation: ZHANG Nan, ZHENG Long-Zhen, XIONG Lei-Yan, GUO Zan-Ru, KANG Xiao-Wei, WANG Qian, WU Zi-Rui, DONG Ze-Min. Construction of Nano Silver Modified Super Hydrophobic Interface for Detection of Trichlorfon Pesticides[J]. Chinese Journal of Analytical Chemistry, ;2017, 45(2): 261-267. doi: 10.11895/j.issn.0253-3820.160221 shu

Construction of Nano Silver Modified Super Hydrophobic Interface for Detection of Trichlorfon Pesticides

1.
Department of Chemistry and Chemical Engineering, East China Jiaotong University, Nanchang, 330013 China;
2.
Jiangxi Province Institute of Veterinary Drug and Feed Control, Nanchang, 330029 China

Received Date: 22 June 2016
Revised Date: 1 December 2016

Fund Project: This work was supported by the National Natural Science Foundation of China (Nos.21465011, 51563009)

Super hydrophobic interface modified with silver nanoparticles was fabricated for the detection of pesticide residues. By using a chemical reduction method, silver nanoparticles were deposited on the substrate surfaces with different microscopic pore structures. Two kinds of composite substrates, including regular stainless steel mesh and cellulose polyester film, were used. The pre-treatment of the substrate with fluoridated reagents was used to form a super hydrophobic interface, which made the target molecules on the surface concentrate effectively. The surface with the cellulose polyester substrate was used to detect Rhodamine 6G (R 6G) effectively with surface enhanced Raman scattering (SERS) technique. The results showed that the detection limit was 10^-16 mol/L. In addition, the surfaces based on the stainless steel mesh and cellulose polyester substrate were used to detect trichlorfon pesticide with detection limits of 1×10^-15 mol/L and 1×10^-16 mol/L, respectively.
- Super hydrophobic interface,
- Ultrasensitive detection,
- Fluoridated treatment,
- Pesticide residue, Surface enhanced Raman scattering,
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