Abstract

In the present paper, a screen printed electrode was modified with ZnFe₂O₄ magnetic nanoparticles and then used for an electrooxidation investigation of vitamin B₆; in addition, its sensing was studied via differential pulse voltammetry. The current response in the case of vitamin B₆ is considerably enhanced on the modified electrode in comparison with that on an unmodified screen printed electrode. A linear relationship among the concentration and the current is achieved in a range of 0.2–350.0 µM for vitamin B₆ at optimized states of differential pulse voltammetric values, and the detection limit is equal to 0.07 µM. For the detection of vitamin B₆, the fabricated electrode mentioned above showed a fast response. The experiments demonstrated that this simple, eco-friendly, economic, and rapid approach of ZnFe₂O₄ magnetic nanoparticles/screen printed electrode production has a high potential to fabricate a sensor in order to detect vitamin B₆ in real samples.

中文翻译：

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基于修饰丝网印刷电极的维生素B 6检测电化学传感器

摘要

本文采用ZnFe ₂ O ₄磁性纳米粒子对丝网印刷电极进行了修饰，然后用于维生素B ₆的电氧化研究。此外，还通过差分脉冲伏安法研究了其感测。与未修饰的丝网印刷电极相比，在修饰电极上维生素B ₆的电流响应大大提高。在微分脉冲伏安值的最佳状态下，维生素B ₆的浓度与电流之间呈线性关系，范围为0.2-350.0 µM，检出限等于0.07 µM。用于检测维生素B ₆，上述制造的电极显示出快速响应。实验表明，这种简单，环保，经济，快速的ZnFe ₂ O ₄磁性纳米颗粒/丝网印刷电极生产方法具有制造传感器的潜力，可以检测真实样品中的维生素B ₆。