Analytical Sciences 2002-01-01

Voltammetric Detection of Oxalic Acid by Using Glassy Carbon Electrodes with Covalently Attached Nitrogen-containing Functional Groups.

Jaih Hargreaves, Ja-on Park, Emilio L Ghisalberti, Krishnapillai Sivasithamparam, Brian W Skelton, Allan H White

文献索引：Anal. Sci. 31 , 733-5, (2015)

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摘要

We report on a novel voltammetric detection of oxalic acid by using glassy carbon electrodes with covalently attached nitrogen-containing functional groups prepared by stepwise electrolysis. A glassy carbon electrode electrooxidized in an ammonium carbamate solution was electroreduced at -1.0 V (vs. Ag/AgCl) in 1.0 M sulfuric acid for a long time. We found that the electrocatalytic oxidation wave of oxalic acid obtained by this modified glassy carbon electrode was moved to a more negative potential region than that obtained by a platinum electrode in an acidic medium. A good linearity for the peak current signals was observed in the concentration range from 0.1 to 50 mM.

相关化合物

  • 硫酸
  • 氨基甲酸铵
  • 草酸钠

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