Affiliation:
1. Institute of Advanced Study Chengdu University Chengdu 610106 P. R. China
2. Sichuan Industrial Institute of Antibiotics Chengdu University Chengdu 610106 P. R. China
3. College of Food and Bioengineering Chengdu University Chengdu 610106 P. R. China
4. College of Chemical Engineering Sichuan University Chengdu 610065 P. R. China
Abstract
AbstractA Prussian blue analogue with cobalt (Na2‐xCo[Fe(CN)6]1‐y, PB‐Co), which is often used as sodium‐ion battery material, was found to be an excellent sensing material toward some biomolecules by calcination. PB‐Co calcined at 750 °C for 1 h (PB‐Co750‐1) has the improved defects to facilitate the adsorption and the catalytic oxidation of ascorbic acid (AA), dopamine (DA) and uric acid (UA). PB‐Co750‐1 modified on screen printed carbon electrode (SPE) for the ultrasensitively simultaneous determination of AA, DA and UA demonstrates the wide linear range, the low limit of detection (LOD) and the good reproducibility. In addition, the redox of the analytes was confirmed as the diffusion‐controlled process via the kinetic study. The recoveries of AA, DA and UA in real samples were found between 91 % to 114 %. AA and UA in tablets, serums and urines could be determined by PB‐Co750‐1/SPE with the satisfactory results.
Funder
National Natural Science Foundation of China
Subject
Electrochemistry,Catalysis
Cited by
2 articles.
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