这项工作比较了基于（1）玻碳电极（GCE）的两种电分析系统的电分析性能，和(2)带电液-液界面(ELLI)，用于检测氟喹诺酮类抗生素-达诺氧氟沙星(DANO)。我们的目标是确定最佳条件，以检测所选择的分析物与两个采用的系统，提取一些电分析参数，研究电荷转移反应的机理（GCE氧化和整个ELLI的离子转移），并提供DANO的物理化学常数。还在掺加的乳样品中进行所选择的分析物的检测。据我们所知,这是直接比较使用固体电极（在这种情况下为GCE）和ELLI获得的电分析参数的第一项工作。我们已经发现,当分析牛奶时,对于DANO,后者提供更好的电分析参数(更低的LOD和LOQ)以及良好的选择性。
This work compares the electroanalytical performance of two electroanalytical systems based on (1) the glassy carbon electrode (GCE), and (2) the electrified liquid-liquid interface (eLLI), for the detection of fluoroquinolone antibiotic-danofloxacin (DANO). Our aim was to define the optimal conditions to detect the chosen analyte with two employed systems, extract a number of electroanalytical parameters,
study the mechanism of the charge transfer reactions (oxidation at GCE and ion transfer across the eLLI), and to provide physicochemical constants for DANO. Detection of the chosen analyte was also performed in the spiked milk samples. To the best of our knowledge, this is the first work that directly compares the electroanalytical parameters obtained with solid electrode (in this case GCE) and eLLI. We have found that for DANO the latter provides better electroanalytical parameters (lower LOD and LOQ) as well as good selectivity when the milk was analyzed.
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