粘土糊电极和石墨烯糊电极的分析性能-比较研究。
Analytical Performance of Clay Paste Electrode and Graphene Paste Electrode-Comparative Study.
机构信息
Polfarmex S.A., Jozefow 9, 99-300 Kutno, Poland.
Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
出版信息
Molecules. 2022 Mar 22;27(7):2037. doi: 10.3390/molecules27072037.
The analytical performance of the clay paste electrode and graphene paste electrode was compared using square wave voltammetry (SWV) and cyclic voltammetry (CV). The comparison was made on the basis of a paracetamol (PA) determination on both working electrodes. The influence of pH and SWV parameters was investigated. The linear concentration ranges were found to be 6.0 × 10-3.0 × 10 and 2.0 × 10-8.0 × 10 mol L for clay paste electrode (ClPE) and graphene paste electrode (GrPE), respectively. The detection and quantification limits were calculated as 1.4 × 10 and 4.7 ×10 mol L for ClPE and 3.7 × 10 and 1.2 × 10 mol L for GrPE, respectively. Developed methods were successfully applied to pharmaceutical formulations analyses. Scanning electron microscopy and energy-dispersive X-ray spectroscopy were used to characterize ClPE and GrPE surfaces. Clay composition was examined with wavelength dispersive X-ray (WDXRF).
采用方波伏安法（SWV）和循环伏安法（CV）比较了粘土糊电极和石墨烯糊电极的分析性能。在这两种工作电极上均对扑热息痛（PA）进行测定的基础上进行了比较。考察了 pH 值和 SWV 参数的影响。分别在 6.0×10-3.0×10 和 2.0×10-8.0×10 mol L 的范围内，粘土糊电极（ClPE）和石墨烯糊电极（GrPE）的线性浓度范围分别为 2.0×10-8.0×10 mol L。ClPE 的检测限和定量限分别计算为 1.4×10 和 4.7×10 mol L，GrPE 的检测限和定量限分别为 3.7×10 和 1.2×10 mol L。所开发的方法成功应用于药物制剂分析。采用扫描电子显微镜和能量色散 X 射线光谱法对 ClPE 和 GrPE 表面进行了表征。使用波长色散 X 射线（WDXRF）检查了粘土的组成。
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