Search Results - "Sá, Acelino Cardoso de"

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Publication Catalog - "Sá, Acelino Cardoso de"

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  1. 1

    Potencialidades eletroanalíticas de complexos binucleares de nitroprussiato de metais de transição suportado em 3-aminopropil sílica

    Publication
    by Sá, Acelino Cardoso de
    Origin: Oasisbr
    Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
    2014 master thesis Brazil open access
  2. 2

    Determinação de açucares em bagaço de palha de cana-de-açúcar por cromatografia líquida de alta eficiência com detecção eletroquímica utilizando eletrodos de nanotubos modificados...

    Publication
    by Sá, Acelino Cardoso de
    Origin: Oasisbr
    Pós-graduação em Química - IQ
    2016 doctoral thesis Brazil open access
  3. 3

    An investigation of the mixed water/formamide solvent on the synthesis of cadmium nitroprusside particles and its behavior in the electrochemical sensing of isoniazid

    Publication
    by Souza, Tamires Rocha
    Other Authors: Sa, Acelino Cardoso de; Carmo, Devaney Ribeiro do
    Origin: Oasisbr
    Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
    2021 article Brazil open access
  4. 4

    Voltammetric behaviour of a modified electrode with azide copper octa(3-aminopropyl)octasilsesquioxane composite in the oxidation of ascorbic acid

    Publication
    by Carmo, Devaney Ribeiro do
    Other Authors: Paim, Leonardo Lataro; Silvestrini, Daniela Rodrigues; Sá, Acelino Cardoso de; Bicalho, Urquisa de Oliveira; Stradiotto, Nelson Ramos
    Origin: Oasisbr
    A novel nanostructured composite, azide copper octa (3-aminopropyl)octasilsesquioxane (ASCA) was incorporated into a graphite paste electrode and the electrochemical studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with ASCA (GPE-ASCA), showed one redox couple with formal potential (E  ) = 0.30 V and an irreversible process at 1.1 V (vs Ag/AgCl; NaCl 1.0 mol L-1 ; v = 20 mV s-1 ). The redox couple with (E  ) = 0.30V presents an electrocatalytic response for determination of ascorbic acid. The modified electrode gives a linear range from 1.010-4 – 1.010-3 mol L-1 (r = 0.998) for the determination of ascorbic acid with detection limit of 6.910-5 mol L-1 and standard deviation of 2.3% for n = 3 . The amperometric sensitivity was 122.1 mA/mol L-1 for ascorbic acid. The application this electrode was tested and ascorbic acid in three commercial pharmaceutical product (Cebion, Cewin and Redoxon) have been determined.
    2015 article Brazil open access

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