Search Results - "Munoz, Rodrigo A.A."

Improved electrochemical performance of pyrolytic graphite paper: Electrochemical versus reactive cold-plasma activation by Pereira, Jian F.S., Borges, Pedro H.S., Moura, Gabriel M., Gelamo, Rogério V., Nossol, Edson, Canobre, Sheila C., Richter, Eduardo M., Munoz, Rodrigo A.A.

“…Flexible pyrolytic graphite sheets or graphite paper (GP) are a promising source of disposable (low-cost) electrochemical sensors. This work demonstrates the…”
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Complete Additively Manufactured (3D-Printed) Electrochemical Sensing Platform by Richter, Eduardo M, Rocha, Diego P, Cardoso, Rafael M, Keefe, Edmund M, Foster, Christopher W, Munoz, Rodrigo A. A, Banks, Craig E

“…Herein, we report a complete additively manufactured (AM) electrochemical sensing platform. In this approach, a fully AM/3D-printed electrochemical system,…”
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Batch‐injection Analysis Better than ever: New Materials for Improved Electrochemical Detection and On‐site Applications by Rocha, Diego P., Cardoso, Rafael M., Tormin, Thiago F., de Araujo, William R., Munoz, Rodrigo A. A., Richter, Eduardo M., Angnes, Lúcio

“…Since the development of batch‐injection analysis (BIA) in 1990, the technique has been constantly upgraded, especially for electrochemical systems, including…”
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Additive-manufactured sensors for biofuel analysis: copper determination in bioethanol using a 3D-printed carbon black/polylactic electrode by João, Afonso F., Squissato, André L., Richter, Eduardo M., Muñoz, Rodrigo A. A.

“…We show that fused deposition modelling (FDM) 3D-printed electrodes can be used for quality control of fuel bioethanol. 3D-printing using carbon…”
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Moringa oleifera: A potential source for production of biodiesel and antioxidant additives by Fernandes, David M., Sousa, Raquel M.F., de Oliveira, Alberto, Morais, Sérgio A.L., Richter, Eduardo M., Muñoz, Rodrigo A.A.

“…•High induction period (IP) of 19.3h for Moringa oleifera methyl ester.•High antioxidant activity of the extract verified by DPPH method and…”
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Corrosive character of Moringa oleifera Lam biodiesel exposed to carbon steel under simulated storage conditions by Fernandes, David M., Squissato, André L., Lima, Alexandre F., Richter, Eduardo M., Munoz, Rodrigo A.A.

“…The corrosive character of Moringa oleifera Lam biodiesel was evaluated through static immersion tests with different carbon steels (CS1015 and CS4140) in…”
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An Overview of Recent Electroanalytical Applications Utilizing Screen‐Printed Electrodes Within Flow Systems by Squissato, André L., Munoz, Rodrigo A. A., Banks, Craig E., Richter, Eduardo M.

“…This review addresses the use of screen‐printed electrodes (SPEs) coupled to flow systems such as flow injection analysis (FIA), batch injection analysis…”
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A simple and fast-portable method for the screening of the appetite-suppressant drug sibutramine in natural products and multivitamins supplements by Freitas, Jhonys M., Oliveira, Thiago C., Santana, Mario H.P., Banks, Craig E., Munoz, Rodrigo A.A., Richter, Eduardo M.

“…[Display omitted] •Selective screening of a prohibited stimulant in natural herbal formulations.•Robust portable system for on-site analysis of…”
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A Batch Injection Analysis System with Square‐wave Voltammetric Detection for Fast and Simultaneous Determination of Zinc and Ascorbic Acid by Ribeiro, Michelle M. A. C., Rocha, Raquel G., Munoz, Rodrigo A. A., Richter, Eduardo M.

“…The determination of organic and inorganic compounds in a single run is still a great challenge. In this paper, we developed a method for fast simultaneous…”
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Detection of Analgesics and Sedation Drugs in Whiskey Using Electrochemical Paper‐based Analytical Devices by Dias, Anderson A., Cardoso, Thiago M. G., Chagas, Cyro L. S., Oliveira, Virgílio X. G., Munoz, Rodrigo A. A., Henry, Charles S., Santana, Mário H. P., Paixão, Thiago R. L. C., Coltro, Wendell K. T.

“…The adulteration of whiskey with analgesics and sedation drugs has been a common practice to prevent hangover the following day and promote loss of…”
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Multi-walled carbon nanotubes: Size-dependent electrochemistry of phenolic compounds by Cardoso, Rafael M., Montes, Rodrigo H.O., Lima, Ana P., Dornellas, Rafael M., Nossol, Edson, Richter, Eduardo M., Munoz, Rodrigo A.A.

“…•The electrochemistry of phenolic compounds is affected by dimensions of MWCNT.•Small diameter MWCNT presented higher electrocatalytic activity (50–150mV…”
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In situ electrochemical determination of free Cu(II) ions in biodiesel using screen-printed electrodes: Direct correlation with oxidation stability by Squissato, André L., Neri, Thais S., Coelho, Nívia M.M., Richter, Eduardo M., Munoz, Rodrigo A.A.

“…This work presents a simple and sensitive method to measure in situ free Cu(II) ions in biodiesel using organic-resistant screen-printed gold electrodes…”
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3D‐printed Portable Platform for Mechanized Handling and Injection of Microvolumes Coupled to Electrochemical Detection by Mendonça, Dianderson M. H., Rocha, Diego P., Dutra, Gustavo S. V., Cardoso, Rafael M., Batista, Alex D., Richter, Eduardo M., Munoz, Rodrigo A. A.

“…We present a low‐cost mechanized system fabricated using fused deposition modelling 3D‐printing technology to manipulate microvolumes and perform injections on…”
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Investigation on acid functionalization of double-walled carbon nanotubes of different lengths on the development of amperometric sensors by Lima, Ana P., Catto, Ariadne C., Longo, Elson, Nossol, Edson, Richter, Eduardo M., Munoz, Rodrigo A.A.

“…Double-walled carbon nanotubes (DWCNTs) of different length were submitted to acid functionalization and investigated as chemical modifiers on glassy-carbon…”
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Fast determination of codeine, orphenadrine, promethazine, scopolamine, tramadol, and paracetamol in pharmaceutical formulations by capillary electrophoresis by Cunha, Rafael R., Ribeiro, Michelle M. A. C., Muñoz, Rodrigo A. A., Richter, Eduardo M.

“…Paracetamol is an active ingredient commonly found in pharmaceutical formulations in combination with one of the following compounds: codeine, orphenadrine,…”
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Highly sensitive amperometric detection of drugs and antioxidants on non-functionalized multi-walled carbon nanotubes: Effect of metallic impurities? by Stefano, Jéssica S., Rocha, Diego P., Dornellas, Rafael M., Narciso, Laiz C.D., Krzyzaniak, Sindy R., Mello, Paola A., Nossol, Edson, Richter, Eduardo M., Munoz, Rodrigo A.A.

“…•Increase in voltammetric and amperometric signals on non-functionalized (NF-) MWCNTs.•EIS data indicated higher activity of NF-MWCNTs and ICP-MS determined…”
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Electrochemical detection of 2,4,6-trinitrotoluene on carbon nanotube modified electrode: Effect of acid functionalization by Stefano, Jéssica S., Lima, Ana P., Nascentes, Clésia C., Krzyzaniak, Sindy R., Mello, Paola A., Gonçalves, Josué M., Richter, Eduardo M., Nossol, Edson, Munoz, Rodrigo A. A.

“…This work presents new insights on the electrocatalytic reduction of 2,4,6-trinitrotoluene (TNT) on carbon nanotubes (CNTs)-modified electrodes (multi-walled…”
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Single‐run capillary electrophoresis method for the fast simultaneous determination of amoxicillin, clavulanate, and potassium by Marra, Mariana C., Cunha, Rafael R., Muñoz, Rodrigo A. A., Batista, Alex D., Richter, Eduardo M.

“…We report a new fast method for the simultaneous determination of amoxicillin, clavulanate, and potassium by capillary electrophoresis with capacitively…”
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Simple Strategy for Selective Determination of Levamisole in Seized Cocaine and Pharmaceutical Samples Using Disposable Screen‐printed Electrodes by Rocha, Raquel G., Stefano, Jéssica S., Arantes, Iana V. S., Ribeiro, Michelle M. A. C., Santana, Mario H. P., Richter, Eduardo M., Munoz, Rodrigo A. A.

“…Levamisole is the most common adulterant found in cocaine samples and its electrochemical determination in cocaine seized samples is a challenge due to peak…”
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Carbon‐nanotube Modified Screen‐printed Electrode for the Simultaneous Determination of Nitrite and Uric Acid in Biological Fluids Using Batch‐injection Amperometric Detection by Caetano, Larissa P., Lima, Ana P., Tormin, Thiago F., Richter, Eduardo M., Espindola, Foued S., Botelho, Françoise V., Munoz, Rodrigo A. A.

“…A portable electroanalytical system applied for rapid and simultaneous determination of uric acid (UA) and nitrite (NIT) in human biological fluids (urine,…”
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