Bdd
Mostrando 1-12 de 54 artigos, teses e dissertações.
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1. ELECTROCHEMICAL INCINERATION OF SHORT-CHAIN CARBOXYLIC ACIDS WITH NB‑SUPPORTED BORON DOPED DIAMOND ANODE: SUPPORTING ELECTROLYTE EFFECT INTO THE ELECTROGENERATED OXIDANT SPECIES (HYDROXYL RADICALS, HYDROGEN PEROXIDE AND PERSULFATE)
This work describes the electrochemical oxidation study of three short chain carboxylic acids (acetic, oxalic and formic 0.18 mol L-1) using different electrolysis conditions (electrolyte composition and current density) in an electrochemical reactor fitted with niobiumsupported/BDD electrode (Nb/BBD) as anode and titanium plate as cathode. The experiments w
Quím. Nova. Publicado em: 2020-03
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2. ELECTROCHEMICAL DETERMINATION OF 2-NAPHTHYLAMINE IN PERFUME SAMPLES USING BORONDOPED DIAMOND ELECTRODE
This work presents a simple electrochemical method for 2-naphthylamine (2NAP) determination in perfume by differential-pulse voltammetry (DPV) employing a boron-doped diamond (BDD) electrode cathodically treated. Simple dilution of sample in supporting electrolyte was performed before electrochemical analysis. A borate buffer solution of pH 10.0 containing 2
Quím. Nova. Publicado em: 2020-03
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3. Hydrogen Peroxide Electrogeneration by Gas Diffusion Electrode Modified With Tungsten Oxide Nanoparticles for Degradation of Orange II and Sunset Yellow FCF Azo Dyes
In this work, the gas diffusion electrode (GDE) cathode of Vulcan XC72 carbon modified with nanoparticles of WO2.72 (WO2.72 / Vulcan XC72) was used for H2O2 electrogeneration and degradation of 350 mL of Orange II (OII) and Sunset Yellow FCF (SY) azo dyes by electro-Fenton (EF) and photoelectro-Fenton (PEF) processes with different Fe2+ initial content (1.00
J. Braz. Chem. Soc.. Publicado em: 16/09/2019
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4. BDD-Electrolysis of Oxalic Acid in Diluted Acidic Solutions
Boron doped diamond films (BDD) are the most studied electrocatalytic materials and their efficiency for removing organic compounds is attributed to their ability to produce a large amount of hydroxyl radicals by the electrolysis of water. However, some organic compounds are easy to degrade than others, as well as they also interact with BDD surface. Thus, i
J. Braz. Chem. Soc.. Publicado em: 04/07/2019
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5. Estratégias de inclusão da farinha de batata doce associada ao uso de enzimas exógenas em rações de frangos de corte
RESUMO Avaliou-se o efeito da inclusão de farinha de batata doce (FBD), como alternativa ao milho em dietas de frangos de corte sobre o desempenho, rendimento da carcaça, morfometria intestinal, biometria de órgãos, qualidade de carne e pigmentação de canela. Foram utilizados 936 pintos de um dia, machos, da linhagem Cobb-500. Adotou-se um DIC em esque
Rev. bras. saúde prod. anim.. Publicado em: 2018-03
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6. DETERMINAÇÃO RÁPIDA E SIMULTÂNEA DE PROPIFENAZONA, PARACETAMOL E CAFEÍNA UTILIZANDO ANÁLISE POR INJEÇÃO EM BATELADA COM DETECÇÃO AMPEROMÉTRICA
A fast and simple procedure for simultaneous determination of propyphenazone (PRO), paracetamol (PAR) and caffeine (CAF) was performed using batch injection analysis with multiple pulse amperometric detection (BIA-MPA). Three potentials pulses were selected for the analysis: +0.90 V/50 ms: only PAR was oxidized; +1.20 V/50 ms: oxidation of PAR and PRO withou
Quím. Nova. Publicado em: 2017-10
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7. Anodic Oxidation of Sulfide to Sulfate: Effect of the Current Density on the Process Kinetics
The kinetics of the conversion of sulfide to sulfate by electro-oxidation, using a boron-doped diamond (BDD) electrode was studied. Different applied current densities were tested, from 10 to 60 mA cm-2. The results showed that the electrochemical conversion of sulfide to sulfate occurs in steps, via intermediate production of other sulfur species. The oxida
J. Braz. Chem. Soc.. Publicado em: 2017-04
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8. Influence of Supporting Electrolytes on RO 16 Dye Electrochemical Oxidation Using Boron Doped Diamond Electrodes
The influence of different supporting electrolytes as well as of different current densities on RO16 dye electrochemical oxidation using BDD electrodes has been systematically studied. The RO16 azo-dye electrooxidation experiments were performed at different current densities and three different supporting electrolytes: H2SO4 0.1 mol L-1, HClO4 0.1 mol L-1 a
Mat. Res.. Publicado em: 13/03/2017
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9. Yale-Brown Obsessive Compulsive Scale modified for Body Dysmorphic Disorder (BDD-YBOCS): Brazilian Portuguese translation, cultural adaptation and validation
Objective: To translate, culturally adapt, and validate a Brazilian Portuguese version of the Yale-Brown Obsessive Compulsive Scale modified for Body Dysmorphic Disorder (BDD-YBOCS). Methods: Ninety-three patients of both sexes seeking rhinoplasty were consecutively selected at the Plastic Surgery Outpatient Clinic of the Universidade Federal de São Paulo
Rev. Bras. Psiquiatr.. Publicado em: 2015-12
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10. DETERMINAÇÃO VOLTAMÉTRICA SIMULTÂNEA DE BESILATO DE ANLODIPINO E HIDROCLOROTIAZIDA EM AMOSTRAS DE URINA SINTÉTICA UTILIZANDO UM ELETRODO DE DIAMANTE DOPADO COM BORO
A novel method for simultaneous voltammetric determination of the antihypertensive drugs, amlodipine besylate (AML) and hydrochlorothiazide (HTZ) in synthetic urine samples was developed. Determination was carried out with a cathodically pretreated boron-doped diamond electrode (CPT-BDD) using square-wave voltammetry (SWV) and Britton-Robinson buffer solu
Quím. Nova. Publicado em: 2015-07
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11. DETERMINAÇÃO RÁPIDA E SIMULTÂNEA DE SULFAMETOXAZOL E TRIMETOPRIMA UTILIZANDO ANÁLISE POR INJEÇÃO EM BATELADA COM DETECÇÃO AMPEROMÉTRICA E ELETRODO DE DIAMANTE DOPADO COM BORO
A fast, simple procedure for simultaneous determination of sulfamethoxazole (SMX) and trimethoprim (TMP) was performed using batch injection analysis with multiple pulse amperometric detection (BIA-MPA). The sample aliquot (150 µL) was directly injected onto the boron-doped diamond (BDD) electrode (wall-jet configuration) immersed in a BIA system. The an
Quím. Nova. Publicado em: 2015-06
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12. Performance and kinetic-mechanistic aspects in the electrochemical degradation of sulfadiazine on boron-doped diamond electrode
O desempenho eletroquímico de eletrodos de diamante dopado com boro (BDD) na degradação eletroquímica de efluentes contendo sulfadiazina (SDZ) usando um reator filtro-prensa é apresentado e discutido. A eletrooxidação da SDZ (volume de 0,5 L, com uma concentração inicial de 250 mg L-1) obtida sob condições otimizadas (densidade de corrente de 36 m
J. Braz. Chem. Soc.. Publicado em: 2014-08