Photocatalytic degradation of the pesticide pyridaben: Identification of degradation pathways using SERS and GC-MS.

• Tác giả: Chengcong Chen, Yu Gao, Xiao Xia Han, Wenshuo Ren, Liang Su, Yunfei Xie, Meng-Lei Xu, Mengmeng Zhang, Songning Zhao
• Ngôn ngữ: eng
• Ký hiệu phân loại: 627.12 Rivers and streams
• Thông tin xuất bản: Canada : Food research international (Ottawa, Ont.) , 2025
• Bộ sưu tập: NCBI
• ID: 208474

Tóm tắt

Degradation pathways of the pesticide pyridaben in tea caused by ultraviolet photocatalytic degradation were identified using SERS and GC-MS. Pyridaben in tea decreased from 4.50 mg/kg to 3.46 mg/kg after 2 h and to 0.62 mg/kg after 5 h, with a degradation rate of 86.22 % and a recovery rate of 90.00 %. The pyridaben degradation process involved C-S cleavage, with a SERS band of ν(C-S) at 710 cm