In this work, scanning electron microscopy (SEM) was used for the characterization of chemically modified carbon paste sensors (CMCPSs), with the aim of understanding their chemical and electrochemical properties. The work also provides a microscopic study on the role of the binder, type of carbon, amount and nature of modifier, composition of the carbon paste and its impact on the electrochemical performance of the sensor. In addition, energy dispersive X-ray spectroscopy (EDX) was utilized for the direct observation of the interaction between the chemical modifier and the carbon paste. This has enabled the fabrication of new sensitive and selective chemically modified carbon paste sensors that were successfully applied for the detection of tellurite ions in pure solutions, environmental and biological samples. This work provides new insights on the rational design and integration of carbon paste sensors for a variety of applications.

中文翻译：

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碲酸盐碳糊传感器：微观分析为离子载体和分析物质之间相互作用的性质提供了新的见解

在这项工作中，扫描电子显微镜 (SEM) 用于表征化学改性碳糊传感器 (CMCPS)，目的是了解它们的化学和电化学特性。该工作还对粘合剂的作用、碳的类型、改性剂的数量和性质、碳糊的组成及其对传感器电化学性能的影响进行了微观研究。此外，能量色散 X 射线光谱 (EDX) 用于直接观察化学改性剂和碳糊之间的相互作用。这使得制造新的灵敏和选择性化学改性碳糊传感器成为可能，该传感器已成功应用于检测纯溶液、环境和生物样品中的碲酸盐离子。