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Ma X, Lv H, Chen M, Liu H, Xue S, Zhu Q, Wang X. Novel electrochemical sensor for determination of propyl gallate based on poly(γ-aminobutyric acid) incorporating gold nanoclusters. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rasheed Z, Vikraman AE, Thomas D, Jagan JS, Kumar KG. Carbon-Nanotube-Based Sensor for the Determination of Butylated Hydroxyanisole in Food Samples. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9894-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen M, Hu X, Tai Z, Qin H, Tang H, Liu M, Yang Y. Determination of Four Synthetic Phenolic Antioxidants in Edible Oils by High-Performance Liquid Chromatography with Cloud Point Extraction Using Tergitol TMN-6. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9413-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Milić SZ, Potkonjak NI, Gorjanović SŽ, Veljović-Jovanović SD, Pastor FT, Sužnjević DŽ. A Polarographic Study of Chlorogenic Acid and Its Interaction with Some Heavy Metal Ions. ELECTROANAL 2011. [DOI: 10.1002/elan.201100476] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Medeiros RA, Rocha-Filho RC, Fatibello-Filho O. Simultaneous voltammetric determination of phenolic antioxidants in food using a boron-doped diamond electrode. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.05.010] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Medeiros RA, Lourenção BC, Rocha-Filho RC, Fatibello-Filho O. Simple Flow Injection Analysis System for Simultaneous Determination of Phenolic Antioxidants with Multiple Pulse Amperometric Detection at a Boron-Doped Diamond Electrode. Anal Chem 2010; 82:8658-63. [DOI: 10.1021/ac101921f] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Roberta Antigo Medeiros
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos - SP, Brazil
| | - Bruna Cláudia Lourenção
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos - SP, Brazil
| | - Romeu Cardozo Rocha-Filho
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos - SP, Brazil
| | - Orlando Fatibello-Filho
- Departamento de Química, Universidade Federal de São Carlos, C.P. 676, 13560-970 São Carlos - SP, Brazil
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Fernandes DM, Simões SM, Carapuça HM, Brett CM, Cavaleiro AM. Novel poly(hexylmethacrylate) composite carbon electrodes modified with Keggin-type tungstophosphate-tetrabutylammonium salts. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2009.11.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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A new modified conducting carbon composite electrode as sensor for ascorbate and biosensor for glucose. Bioelectrochemistry 2009; 76:135-40. [DOI: 10.1016/j.bioelechem.2009.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Revised: 03/09/2009] [Accepted: 03/12/2009] [Indexed: 11/19/2022]
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Xu X, Weber SG. Carbon Fiber/Epoxy Composite Ring-disk Electrode: Fabrication, Characterization and Application to Electrochemical Detection in Capillary High Performance Liquid Chromatography. J Electroanal Chem (Lausanne) 2009; 630:75-80. [PMID: 20160941 PMCID: PMC2765667 DOI: 10.1016/j.jelechem.2009.03.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Carbon fiber/epoxy composite materials, which are manufactured using the pultrusion process, are commercially available in various shapes and sizes at very low cost. Here we demonstrate the application of such a material as an electrochemical detector in a flow system. Cyclic voltammetry shows that the material's electrochemical behavior resembles that of glassy carbon. Using tube and rod composites, we successfully fabricated a ring-disk electrode with a 20 μm gap between the ring and the disk. The narrow gap is favorable for mass transfer in the generator-collector experiment. This composite ring-disk electrode is assembled in a thin-layer radial-flow cell and used as an electrochemical detector. The disk electrode, placed directly opposite to the flow inlet, is operated as a generator electrode with the ring electrode being a collector. The high collection efficiency on the ring electrode (0.8 for a chemically reversible species) enhances the detection selectivity.
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Affiliation(s)
- Xiaomi Xu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260
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Barsan MM, Pinto EM, Florescu M, Brett CM. Development and characterization of a new conducting carbon composite electrode. Anal Chim Acta 2009; 635:71-8. [DOI: 10.1016/j.aca.2009.01.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 01/05/2009] [Accepted: 01/07/2009] [Indexed: 10/21/2022]
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12
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Electrochemical Oxidation and Determination of Oxalic Acid at an Exfoliated Graphite-Polystyrene Composite Electrode. SENSORS 2007. [DOI: 10.3390/s7040615] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Preparation and Characterization of a Surface Renewable Solid State Hg/HgO Reference Electrode Utilizing Gold Amalgam. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.3.439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Thomas SM, Trone MD, Hooker T, Dorwart JG, Morneweck LA. Quantitation of Propyl Gallate in an Active Pharmaceutical Ingredient (API) Using High‐Low Chromatography. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-120021282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Scott M. Thomas
- a Merck and Company , 126 E. Lincoln Ave., Bldg. 818‐C208, Rahway , New Jersey , 07065 , USA
| | - Mark D. Trone
- a Merck and Company , 126 E. Lincoln Ave., Bldg. 818‐C208, Rahway , New Jersey , 07065 , USA
| | - Thomas Hooker
- a Merck and Company , 126 E. Lincoln Ave., Bldg. 818‐C208, Rahway , New Jersey , 07065 , USA
| | - Jason G. Dorwart
- a Merck and Company , 126 E. Lincoln Ave., Bldg. 818‐C208, Rahway , New Jersey , 07065 , USA
| | - Leslie A. Morneweck
- a Merck and Company , 126 E. Lincoln Ave., Bldg. 818‐C208, Rahway , New Jersey , 07065 , USA
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Manganese(II) hexacyanoferrate based renewable amperometric sensor for the determination of butylated hydroxyanisole in food products. Food Chem 2007. [DOI: 10.1016/j.foodchem.2006.02.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ding Y, Mora MF, Garcia CD. Analysis of alkyl gallates and nordihydroguaiaretic acid using plastic capillary electrophoresis – microchips. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2006.01.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Morales M, González M, Reviejo A, Pingarrón J. A composite amperometric tyrosinase biosensor for the determination of the additive propyl gallate in foodstuffs. Microchem J 2005. [DOI: 10.1016/j.microc.2004.10.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ignatov S, Shishniashvili D, Ge B, Scheller FW, Lisdat F. Amperometric biosensor based on a functionalized gold electrode for the detection of antioxidants. Biosens Bioelectron 2002; 17:191-9. [PMID: 11839472 DOI: 10.1016/s0956-5663(01)00283-4] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A method for the electrochemical detection of antioxidants has been developed, which is based on a radical measurement with a cytochrome c modified electrode. A controlled enzymatic production system for superoxide radicals based on xanthine oxidase was used. The addition of antioxidants facilitated the decomposition of the radical in addition to the spontaneous dismutation. The steady-state of superoxide generation and decomposition was thus shifted to a new situation due to the higher decomposition rate after antioxidant addition. This resulted in a decreased current level at the electrode. Antioxidant activity could be quantified from the response of the sensor electrode by the percentage of the signal decrease. The 50% inhibition value (IC(50)) for different antioxidants was calculated and the antioxidant activity of numerous substances was compared. Thus, a hierarchy of superoxide radical scavenging abilities of flavonoids was established: flavanols>flavonols>flavones>flavonones>isoflavonones.
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Affiliation(s)
- S Ignatov
- State Research Center for Applied Microbiology, Obolensk, Moscow Region, Mocow, Russia
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Flow injection analytical system for glucose with screen-printed enzyme biosensor incorporating Os-complex mediator. Anal Chim Acta 2001. [DOI: 10.1016/s0003-2670(00)01158-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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