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Terbium sensitized determination of tosufloxacin using electrochemiluminescence method
Yu Liu1, Shilv Chen, Huichun Zhao
1Department of Chemistry, Beijing Normal University, Beijing 100875, PR China.
Abstract:
A novel method for determination of trace amounts of tosufloxacin (TFLX) based on electrochemiluminescence (ECL) has been developed. The calibration graphs for TFLX were linear in the range of 5.0 x 10(-11)-3.5 x 10(-7) mol/L, with the detection limit of 1.3 x 10(-11) mol/L. Key factors affecting the determination of TFLX were investigated. TFLX amounts in capsule and serum samples were successfully detected by this method. A possible mechanism of energy transfer, and thus the explanation of ECL in the Tb3+-TFLX-Na2S2O4 system are discussed.
