Polyphenol Detection in Mate Tea Samples Using Iron Tetrasulfonated Phthalocyanine Modified Screen-Printed Electrode

Review—Enzymatic and Non-Enzymatic (bio)sensors Based on Phthalocyanines. A Minireview

“…The biosensor presents a highly selectivity to catechol detection, a negligible current change has occurred when six different molecules were tested as possible interference. 41 A non-enzymatic iron tetrasulfonated phthalocyanine (FeTsPc) modified screen-printed carbon electrodes (SPCE) was developed by Martin et al 42 for the electrochemical determination of catechol from mate tea samples. The pH influence over the metallo phthalocyanine behavior was evaluated using UV-vis.…”

Boronic Acid Substituted Polyaniline Based Enzymatic Biosensor System for Catechol Detection

“…For determining phenolic compounds, high‐performance liquid chromatography (HPLC) [3], spectrophotometry [4], and electrochemical methods [5] have been used frequently. Electrochemical techniques are among the numerous known methods; due to their real‐time identification of clinical samples, they are desirable for polyphenol determination [6, 7, 8]. There are many different types of electrodes used for the determination of catechol.…”