Voltammetric determination of isoprenaline in pharmaceutical preparations using a copper(II) hexacyanoferrate(III) modified carbon paste electrode

Electrocatalytic Oxidation and Voltammetric Determination of Hydrazine in Industrial Boiler Feed Water Using a Cobalt Phthalocyanine-modified Electrode

“…This mixture 1012 C. D. C. Conceição et al was subsequently added to 75 mg of melting paraffin wax (25% m=m) at 54-56 C and mixed for 5 min with a glass rod to obtain a homogeneous paste. The modified carbon paste was packed into the tip of a 1 ml insulin plastic syringe, and a silver wire was inserted to give the external electrical contact (Bonifacio et al 2004;Fatibello-Filho and Vieira 2000;MarcolinoJunior et al 2001;Teixeira et al 2004;Vieira, Lupetti, and FatibelloFilho 2002). An electrode area of 0.03 cm 2 was obtained.…”

Voltammetry: A Brief Review About Concepts

“…Dentro deste âmbito, as técnicas voltamétricas se apresentam como uma boa alternativa para muitas aplicações em química analítica, seja no controle de qualidade de produtos farmacêuticos, [4][5][6][7][8][9][10][11][12][13] controle de qualidade de produtos alimentícios, [14][15][16][17][18] estudos ambientais, [19][20][21] análise de combustíveis entre outras. [22][23][24][25][26][27] Suas vantagens se baseiam principalmente na alta sensibilidade, baixo custo instrumental e operacional, embora encontre certa resistência a um maior uso por parte dos analistas, o que pode estar relacionado ao fato de sua teoria básica ser o side ada difí il e a a ge te.…”

Preparation and Characterization of a Tin Pentacyanonitrosylferrate‐Modified Carbon Ceramic Electrode: Application to Electrocatalytic Oxidation and Amperometric Detection of L‐Cysteine

“…Iron(III) hexacyanoferrate(II) is the first model of transition metal cyanoferrate (commonly known as Prussian Blue (PB)) that reported by Neff in 1978 [24]. The preparation and electrochemical behavior of some PB analogue modified electrodes have been reported based on different transition metal hexacyanoferrate such as chromium [25], nickel [26], cobalt [27,28], copper [29,30], palladium [31,32], molybdenum [33], vanadium [34], platinum [35], cadmium [36], and zinc [37]. Pentacyanonitrosylferrate (PCNF) is a member of the polycyanide metal complexing reagents that referred to as nitroprusside (NP).…”