Browsing by Author "XX570789"
Now showing items 1-20 of 26
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(SOCIEDAD CHILENA DE QUIMICA, 2001-03)The effect of ageing the electrode on the mass response was studied by two approaches, namely: i) ageing the Pt deposits on the Au/Q substrate and ii) ageing the Au/Q substrate and then examining the response of the Pt ...
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Chronocoulometry diffusion coefficients as a measure of cyclodextrin-estradiol complex association (ELSEVIER SCIENCE SA, 2008-10-15)The formation of inclusion complexes between estradiol and p-cyclodextrin (CD), sulfobutyleter-beta-CD (SBCD) and hydroxypropil-beta-CD (HPCD) was studied by chronocoulometric and differential pulse voltammetry. In presence ...
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(SPRINGER, 2010-10)For first time the complexation of bentazon (Btz) with native b-cyclodextrin (b-CD) and modified sulfobutylether- b-CD (SBE-CD) was studied by differential pulse voltammetry. In addition, a spectrophotometry UV–Visible study ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2007-05)The slightly water-soluble flavonoid quercetin (QUE) and its inclusion with either beta-cyclodextrin (beta CD), hydroxypropyl-beta-cyclodextrin (HP-beta CD) or sulfobutyl ether-beta-cyclodextrin (SBE-beta CD) were investigated. ...
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(Universidad de Chile, 2015)En la presente memoria de título se estudió el comportamiento de electrodos de carbono vítreo modificados con derivados de β-ciclodextrina (β-CD), que presentan uno o más grupos amino terminales, frente a algunos analitos ...
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(AMER CHEMICAL SOC, 2003-04-15)Potassium ferricyanide ([Fe(CN)(6)](3-)) reduction and ferrocenemethanol (Fe-OH) oxidation at a beta-cyclodextrin (beta-CD)-modified gold electrode were investigated by cyclic voltammetry (CV) and scanning electrochemical ...
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(ELSEVIER SCIENCE SA, 2004-08-01)The system of I-octanol-beta-cyclodextrin in 0.5 M HClO4 at Pt electrodeposited on an Au/quartz crystal (Pt/Au/Q) has been studied by cyclic voltammetry (CV), the electrochemical quartz crystal microbalance (EQCM) and ...
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(WILEY-V C H VERLAG GMBH, 2002-04)Carbon paste electrodes modified with beta-cyclodextrin have been investigated for voltammetric determination of nitrendipine. The immobilization of the beta-cyclodextrin on the carbon paste leads to a modification of the ...
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(ELSEVIER SCIENCE SA LAUSANNE, 1996-04-12)The activity of Pt, Pt + Pb and Pt + Ir deposits on Ti, for ethylene glycol (EG) oxidation, was studied in both 0.5 M H2SO4 and 0.5 M NaOH solutions. The metallic deposits were prepared by electrolysis at constant current ...
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(SPRINGER VERLAG, 1998-05)The activity of Pt-Ir deposits on titanium for the reduction of the nitrate ion in 0.5 M perchloric acid was studied. The electrodes were characterized by SEM-EDAX, XPS and cyclic voltammetry. The activity of the electrodes ...
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(ELECTROCHEMICAL SOC, 2007)A study of the electrolytic oxidation of three new C-4 nitrofuryl 1,4-dihydropyridines in nonaqueous aprotic medium is presented. Controlled-potential electrolysis (CPE) in dimethylformamide +0.1 M tetrabutyl-ammonium ...
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(ELSEVIER SCIENCE SA, 2003-01-16)The electrooxidation of primary alcohols with four to eight carbon atoms on black Pt electrodeposits on gold/quartz, and on commercial bright platinum/quartz electrodes in perchloric acid solution, was studied by cyclic ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 1997)The electro-reduction of nitrate ions in acid medium on Pt, Ir and on a 70:30 Pt, Ir alloy was studied by cyclic voltammetry. The alloy has a higher activity than the pure metals, which was interpreted as being due to ...
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(Universidad de Chile, 2006)La presente tesis contempla el estudio electroquímico y cromatográfico de la interacción de estrona con β-ciclodextrina (β-CD) y sulfobutileter-βciclodextrina (SBE-β-CD) en solución. El estudio se efectuó en un medio ...
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(Universidad de Chile, 2008)En la presente memoria se informan los resultados del comportamiento electroquímico y espectrofotométrico del complejo de inclusión formado por la interacción de bentazona con β-ciclodextrina (β-CD) y sulfobutileter-β-ci ...
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(Universidad de ChilePrograma Cybertesis, 2006)
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(Universidad de ChilePrograma Cybertesis, 2007)
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Inclusion complexes of estrone and estradiol with beta-cyclodextrin: Voltammetric and HPLC studies (WILEY, 2007-07)The interaction of estrone and estradiol with beta-cyclodextrins (beta CD) was investigated by differential pulse voltammetry (DPV) and high-performance liquid chromatography (HPLC) in mixed media. The co-solvent influence ...
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(Sociedad Chilena de Química, 2014)Differences in association constants values of cyclodextrin inclusion complexes can be found in the literature. Most of the times, different experimental conditions have been used leading to different results. This paper ...
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Lanthanide sorbent based on magnetite nanoparticles functionalized with organophosphorus extractants (National Institute for Materials Science, 2015)In this work, an adsorbent was prepared based on the attachment of organophosphorus acid extractants, namely, D2EHPA, CYANEX 272, and CYANEX 301, to the surface of superparamagnetic magnetite (Fe3O4) nanoparticles. The ...
