Chen Baisen, Tan Rongxia, Zhong Yanhui, Hu Yufei, Li Gongke
School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China.
School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, China.
Talanta. 2024 Jan 15;267:125217. doi: 10.1016/j.talanta.2023.125217. Epub 2023 Sep 18.
Ce-PA-Tb polymer with Ce and Tb as metal ion centers was prepared and applied in chemiluminescence (CL) reaction. The structure and property of Ce-PA-Tb were explored. Ce-PA-Tb combines both the oxidant ion (Ce(IV)) and luminescence ion (Tb(III)). Difloxacin can enhance the CL signal of Ce-PA-Tb-SO reaction in acidic medium. Under the optimized affecting factors, a CL method for the selective difloxacin determination was established. The CL intensity showed a good linear relationship from 10.0 to 300.0 μg/L (r = 0.9996) with the limit of detection was 1.1 μg/L. The method with the signal response at 0.5 s and completed the CL process within 10 s. The method was used to determine difloxacin in aquatic products, and the recovery rate was in the range of 88.1%-104.0%. The CL method designed Ce-PA-Tb based is demonstrated to be an excellent tool for difloxacin determination in aquatic products.
