Electroanalysis
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Cảm Biến Điện Hóa Cho Định Lượng Nhạy Cảm Glyphosate Trong Hạt Ngô Dịch bởi AI Tóm tắt Điện cực graphite-epoxy (GE) được điều chỉnh bằng ống nano carbon nhiều lớp (MWCNTs) và peroxidase củ cải đường ( GE/MWCNTs-HRP) đã được sử dụng để xây dựng một cảm biến glyphosate có hiệu suất trong dung dịch nước phụ thuộc vào hoạt động của enzyme. Để chuẩn bị cảm biến, MWCNTs đã được lắng đọng lên bề mặt GE bằng phương pháp điện di s... ... hiện toàn bộ
Electroanalysis - Tập 31 Số 5 - Trang 927-935 - 2019
Charge transfer across a conducting polypyrrole membrane separated by two electrolyte solutionsAbstract This article describes anion transfer across a conducting polypyrrole membrane (PPM) using cyclic voltammetry with a four‐electrode system. The transfer process of both chloride and nitrate anions across the polypyrrole membrane used to separate two pools of electrolyte solutions has been studied. A wide potential window beyond 3 V was obtained, and well‐de... ... hiện toàn bộ
Electroanalysis - Tập 2 Số 8 - Trang 623-629 - 1990
Inhibition of Ru Complex Electrochemiluminescence by Phenols and AnilinesAbstract The effect of 30 phenols and anilines on typical Ru complex electrochemiluminescence (ECL) was systematically investigated under different conditions. It was found that all the tested compounds showed an ECL inhibiting signal. The magnitude of ECL inhibition was related to the position of the substituting group in the benzene ring and decreased in the follo... ... hiện toàn bộ
Electroanalysis - Tập 17 Số 7 - Trang 589-598 - 2005
Edge Plane Pyrolytic Graphite Electrodes for Stripping Voltammetry: a Comparison with Other Carbon Based Electrodes
Electroanalysis - Tập 17 Số 8 - Trang 655-661 - 2005
Manganese Detection with a Metal Catalyst Free Carbon Nanotube Electrode: Anodic versus Cathodic Stripping VoltammetryAbstract Anodic stripping voltammetry (ASV) and cathodic stripping voltammetry (CSV) were used to determine Mn concentration using metal catalyst free carbon nanotube (MCFCNT) electrodes and square wave stripping voltammetry (SWSV). The MCFCNTs are synthesized using a Carbo Thermal Carbide Conversion method which results in a material that does not contain residual ... ... hiện toàn bộ
Electroanalysis - Tập 24 Số 10 - Trang 1909-1914 - 2012
Determination of Manganese in Natural Media by Anodic Stripping Voltammetry Using a Rotating Solid Silver Amalgam ElectrodeAbstract Detection of Mn(II) using differential pulse anodic stripping voltammetry (DPASV) on solid silver amalgam electrode is introduced. A well‐defined peak for the oxidation of Mn(0) to Mn(II) was observed around −1.45 V in NH4 Cl (0.05 M) solution. Concentrations down to 1 μg/L were measured in NH4 Cl (0.05 M) with 900 s ... ... hiện toàn bộ
Electroanalysis - Tập 21 Số 3-5 - Trang 274-279 - 2009
Determination of Manganese by Cathodic Stripping Voltammetry on a Microfabricated Platinum Thin–film ElectrodeAbstract In this work, we report on the determination of trace manganese (Mn) using cathodic stripping voltammetry (CSV) using a microfabricated sensor with a Pt thin‐film working electrode. While an essential trace metal for human health, prolonged exposure to Mn tends to gradually impair our neurological system. The potential sources of Mn exposure make it necessa... ... hiện toàn bộ
Electroanalysis - Tập 29 Số 3 - Trang 686-695 - 2017
Determination of manganese using the method of electrochemical enrichmentAbstract Manganese was determined by differential pulse voltammetry in pre‐enriched solution. The metal was first deposited on the surface of a hanging mercury drop electrode by electrolysis, and after a short oxidation interval, the reformed manganese(II) ions were determined by differential pulse cathodic polarization scan. The detection limit (with 120 seconds de... ... hiện toàn bộ
Electroanalysis - Tập 5 Số 7 - Trang 595-598 - 1993
Differential pulse cathodic stripping voltammetric determination of manganese(II ) and manganese(VII ) at the 1‐(2‐pyridylazo)‐2‐naphthol‐modified carbon paste electrodeAbstract A carbon paste electrode modified with 1‐(2‐pyridylazo)‐2‐naphthol was fabricated and used to preferentially accumulate Mn(II ) at open circuit. After medium exchange, the accumulated Mn(II ) at the electrode surface was electrochemically oxidized. The hydrated MnO2 thus formed was then cathodical... ... hiện toàn bộ
Electroanalysis - Tập 9 Số 1 - Trang 45-51 - 1997
Ultrasonically Enhanced Voltammetric Analysis and Applications: An OverviewAbstract Ultrasonically enhanced voltammetric measurements have been successfully applied for the detection of a wide range of trace metals. These are reviewed and the beneficial effects of power ultrasound applied to electroanalysis highlighted, most notably the possibility for quantitative analysis in otherwise highly passivating media, where classical electrochem...
Electroanalysis - Tập 15 Số 5-6 - Trang 329-346 - 2003
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