Electrochemical oxidation of tiopronin at diamond film electrodes and its determination by amperometric flow injection analysis

Boron-doped diamond electrode: synthesis, characterization, functionalization and analytical applications

“…73,103,104,107,121,141,142,145,[147][148][149][150][151][152][153][154][155][156] The application of diamond microelectrodes and microelectrode arrays is indeed an interesting feature and the use of biomolecules as specific sensing elements together with doped diamond electrodes to impart selectivity has emerged for analysis of the target analyte in 'real world' samples. The first important step is the immobilization of such biomolecules on the active area of the BDD electrode.…”

Pulsed Amperometry for Anti-fouling of Boron-doped Diamond in Electroanalysis of β-Agonists: Application to Flow Injection for Pharmaceutical Analysis

“…An Ismatec peristaltic pump (model IS7610, Switzerland) was used for propelling the carrier stream (buffer). Arrangement of the amperometric detector with BDD as working electrode was described in previous works [9][10][11][12][13][14].…”

“…Excellent properties of the BDD for most electrolytes include (i) low and stable background current; (ii) significantly wide working potential window; (iii) considerably low capacitance; (iv) low adsorption of polar molecules (unlike GC electrode) [7]; (v) excellent reproducibility [8]. In view of these impressive properties, BDD have been employed as the sensor in flow injection (FI) analysis [9][10][11][12][13] and in liquid chromatography [11,14]. All these were carried out using amperometric detection at the BDD electrode.…”

“…Diamond thin-film electrodes have been used as sensors in various applications of electroanalysis [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Synthesis of the polycrystalline film of diamond is carried out on the surface of a substrate in a close system.…”

Electrochemical Analysis of Chloramphenicol Using Boron-doped Diamond Electrode Applied to a Flow-Injection System

“…16 Boron-doped diamond thin film (BDD) electrodes have many advantages for electroanalytical applications, due to their unique characteristics, which include a very low background current, 23,24 a wide electrochemical potential window in aqueous solutions, 25,26 a long-term stability of response, 27-30 a slight adsorption of polar organic molecules 28 and low sensitivity to dissolved oxygen. 31 Because of these attractive properties, BDD electrodes have been successfully used for the determination of various compounds, such as tiopronin, 30 acetaminophen, 32 D-penicillamine, 33 captopril, 34 lincomycin, 35 sulfonamides, 36 malachite green and leucomalachite green. 37 No reports have described the use of BDD electrodes for the determination of chloramphenicol.…”