Development of a Sensor Based on Modified Carbon Paste with Com Iron(III) Protoporphyrin Immobilized on SiNbZn Silica Matrix for L‐tryptophan Determination

作者：Daniela Nunes da Silva; César Ricardo Teixeira Tarley; Arnaldo César Pereira

来源：Electroanalysis, 2017, 29(12): 2793-2802.

DOI：10.1002/elan.201700476

• Iron(III) porphyrin complex
• Carbon paste electrode
• L-tryptophan
• Pharmaceutical formulation

Abstract(#br)In this work, SiO2/Nb2O5/ZnO prepared by the sol‐gel processing method was used as substrate base for immobilization of the protoporphyrin‐IX ion. Iron(III) ion was inserted into the porphyrin ring (SiNbZn‐PPFe). A simple square wave voltammetry method b...