A sustainable amperometric biosensor for the analysis of ascorbic, benzoic, gallic and kojic acids through catechol detection. Innovation and signal processing.

本文报道一种基于普通蘑菇中天然酪氨酸酶（多酚氧化酶）构建的新型儿茶酚安培生物传感器。传感器响应机制为：样品中儿茶酚在酪氨酸酶催化下被溶解氧氧化生成醌，醌在工作电极表面被还原，产生与儿茶酚浓度相关的安培电流。该传感器在儿茶酚浓度递增时表现出优良分析性能，具有电极间重现性好、长期稳定性高、材料可持续、成本低、冻干蘑菇粉可保存数年等优点。...