This paper reports the design of a photoelectrochemical (PEC) sensing method for detecting levofloxacin (LEVX) in tablets. In this paper, a three-dimensional plasma Bi/BiPO₄/BiOI heterojunction was fabricated by a two-step method, in which Bi-metal and BiPO₄ were fixed on the surface of BiOI with beads. The composites were characterized by a variety of analytical methods. Bi/BiPO₄/BiOI-5% showed better photocatalytic activity than BiPO₄/BiOI. Indium tin oxide (ITO) modified with the Bi/BiPO₄/BiOI-5% composites was used to determine LEVX and achieved linear detection ranges of 0.2–2 μM and 2–7 μM. These composites present alternative materials for the analysis of antibiotics.

中文翻译：

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基于双金属和 BiPO4 修饰的 BiOI 微花球的新型选择性光电化学传感左氧氟沙星

本文报道了一种用于检测片剂中左氧氟沙星 (LEVX) 的光电化学 (PEC) 传感方法的设计。本文采用两步法制备三维等离子体Bi/BiPO ₄ /BiOI异质结，其中Bi金属和BiPO ₄用珠子固定在BiOI表面。通过多种分析方法对复合材料进行了表征。Bi/BiPO ₄ /BiOI-5%显示出比BiPO ₄ /BiOI更好的光催化活性。_{用 Bi/BiPO 4} /BiOI-5% 复合材料改性的氧化铟锡 (ITO)用于测定 LEVX，线性检测范围为 0.2–2μM 和 2–7μM. 这些复合材料为分析抗生素提供了替代材料。