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Analytical Performance of Clay Paste Electrode and Graphene Paste Electrode-Comparative Study
Authors: Skowron Ewelina | Spilarewicz-Stanek Kaja | Guziejewski Dariusz | Koszelska Kamila | Metelka Radovan | Smarzewska Sylwia
Year: 2022
Type of publication: článek v odborném periodiku
Name of source: Molecules
Publisher name: MDPI
Place: BASEL
Page from-to: 2037
Titles:
Language Name Abstract Keywords
cze Analytická výkonnost jílových pastových elektrod a grafenových pastových elektrod Analytická výkonnost jílových pastových elektrod a grafenových pastových elektrod byla porovnána s využitím square wave voltametrie (SWV) a cyklické voltametrie. Porovnání bylo provedeno na základě stanovení paracetamolu na obou typech elektrod. Byl testován vliv pH a parametrů SWV. Lineární rozsah stanovení pro jílovou pastovou elektrodu byl 6.0 x 10(-7)-3.0 x 10(-5) mol l-1 a 2.0 x 10(-6)-8.0 x 10(-5) mol l-1 pro grafenovou pastovou elektrodu. K charakterizaci povrchů pastových elektrod byla použita SEM a XRF. square wave voltametrie; paracetamol; grafen; jíl; uhlíkové pastové elektrody; senzory
eng Analytical Performance of Clay Paste Electrode and Graphene Paste Electrode-Comparative Study 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 x 10(-7)-3.0 x 10(-5) and 2.0 x 10(-6)-8.0 x 10(-5) mol L-1 for clay paste electrode (ClPE) and graphene paste electrode (GrPE), respectively. The detection and quantification limits were calculated as 1.4 x 10(-7) and 4.7 x10(-7) mol L-1 for ClPE and 3.7 x 10(-7) and 1.2 x 10(-6) mol L-1 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). square wave voltammetry; paracetamol; graphene; clay; carbon paste electrodes; sensors

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