• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >A Simple Approach to Fabricate a Screen-Printed Electrode and Its Application for Uric Acid Detection
【24h】

A Simple Approach to Fabricate a Screen-Printed Electrode and Its Application for Uric Acid Detection

机译：制造丝网印刷电极的简单方法及其对尿酸检测的应用

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, we present the development of a simple technique for the easy fabrication of a homemade screen-printed carbon electrode (SPCE) and its analytical application for uric acid detection. The homemade SPCE was fabricated using the painting technique on a polyvinyl chloride (PVC) paper substrate. The conductive ink for the homemade SPCE fabrication was prepared from a combination of graphite to polystyrene (at a 10:2 w/w ratio) for the working and counter electrodes, while the reference electrode consisted of silver and polystyrene (at a 10:2 w/w ratio). The field-emission scanning electron microscope image of the homemade SPCE shows that it has a rough surface, with the flake-like graphite perfectly covering the substrate of the PVC paper. The homemade SPCE provides a signal higher than the commercially available SPCE for electrochemical characterization using K3Fe(CN)6 and a uric acid solution. The application of the homemade SPCE for uric acid measurements exhibited a detection limit of 1.94 μM and a quantitation limit of 6.46 μM, with an excellent reproducibility (% relative standard deviation) of 3.06% and a sensitivity of 5 nA μM-1 (R2 = 0.997) in the dynamic range of 10–80 μM. The performance of the homemade SPCE also showed good selectivity using ascorbic acid as an interference when its concentration was one-tenth that of uric acid and was evaluated using the amperometry technique. The uric acid in human urine was detected successfully using the homemade SPCE by the standard addition technique, indicating that the SPCE fabricated showed a potency that could be further developed for the electrochemical sensor.
机译：在这项工作中，我们展示了一种简单的技术，可以轻松制造自制丝网印刷的碳电极（SPCE）及其分析应用来进行尿酸检测。使用聚氯乙烯（PVC）纸基材上的涂料技术制造自制的SPCE。用于自制SPCE制造的导电油墨由石墨与聚苯乙烯（以10：2W / W比）的组合制备用于加工和反电极，同时参比电极由银和聚苯乙烯（10：2）组成w / w比率）。自制SPCE的现场排放扫描电子显微镜图像表明它具有粗糙的表面，薄片状石墨完美地覆盖PVC纸的基板。自制SPCE提供高于使用K3Fe（CN）6和尿酸溶液的用于电化学表征的市售SPCE的信号。自制SPCE对尿酸测量的施用表现出1.94μm的检出限，定量限为6.46μm，其再现性优异（相对标准偏差）为3.06％，灵敏度为5 naμm-1（R2 = 0.997）在10-80μm的动态范围内。当其浓度为尿酸的浓度为十分之一时，自制SPCE的性能也显示出使用抗坏血酸作为干扰的良好选择性，并且使用电流测量技术评估。通过标准添加技术成功地检测人尿中的尿酸，表明制造的SPCE显示出可以进一步开发的电化学传感器的效力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号