Výsledky vyhledávání - "Juan Manuel Padró"

Chiral separation of aryloxyphenoxy-propionate herbicides in a permethyl-β-cyclodextrin based column. Influence of temperature and mobile phase composition on enantioselectivity

Autor: Ester Lubomirsky, Héctor Di Loreto, Juan Manuel Padró, Cecilia B. Castells

Publikováno v: ELECTROPHORESIS. 38:1948-1955

Fil: Lubomirsky, Ester. Universidad Nacional de La Plata. Facultad de Ciencias Exactas; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas; Argentina

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4282368709732e6eeb4f87a49f4e830f
https://doi.org/10.1002/elps.201600528

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Coeficientes de partición entre líquidos iónicos y agua

Autor: Juan Manuel Padró

Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP

El objetivo de este trabajo de tesis es obtener coeficientes de partición para analitos de diversa naturaleza química entre líquidos iónicos a temperatura ambiente y soluciones acuosas. Emplear estos coeficientes en el “Modelo del Parámetro de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07e7c0d6ea596f3cc20e018f4771edb4
https://doi.org/10.35537/10915/34150

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Enantiomeric analysis of overlapped chromatographic profiles in the presence of interferences. Determination of ibuprofen in a pharmaceutical formulation containing homatropine

Autor: Juan Manuel Padró, Cecilia B. Castells, J. Osorio-Grisales, Alejandro C. Olivieri, Juan A. Arancibia

Publikováno v: Journal of Chromatography A. 1467:255-260

In this work, we studied the combination of chemometric methods with chromatographic separations as a strategy applied to the analysis of enantiomers when complete enantioseparation is difficult or requires long analysis times and, in addition, the t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08749ebd9c5d2f0a09e3664eca8a522d
https://doi.org/10.1016/j.chroma.2016.05.094

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Solvatochromic parameters of imidazolium-, hydroxyammonium-, pyridinium- and phosphonium-based room temperature ionic liquids

Autor: Mario Reta, Juan Manuel Padró

Publikováno v: Journal of Molecular Liquids. 213:107-114

Solvatochromic solvent parameters of different room temperature ionic liquids based on the imidazolium, hydroxyammonium, pyridinium and phosphonium cations, namely 1-butyl-3-methyl imidazolium hexafluorophosphate, 1-hexyl-3-methyl imidazolium hexaflu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc64529024e3fa6a1ccdf508094ceacc
https://doi.org/10.1016/j.molliq.2015.10.055

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Chiral separation of several pesticides on an immobilized amylose tris(3-chloro-5-methylphenylcarbamate) column under polar-organic conditions. Influence of mobile phase and temperature on enantioselectivity

Autor: Cecilia B. Castells, Matías E. Díaz Merino, Juan Manuel Padró, Carlina Lancioni

Publikováno v: Journal of Chromatography A. 1624:461240

In this work, the use of different solvents and temperatures was explored, aiming to evaluate their influence on the enantioseparation of pesticides by HPLC in polar-organic conditions, employing a column containing immobilized amylose tris(3-chloro-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69cf1540b374c477f5e02e4cbf5b7253
https://doi.org/10.1016/j.chroma.2020.461240

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State-of-the-art and recent developments of immobilized polysaccharide-based chiral stationary phases for enantioseparations by high-performance liquid chromatography (2013–2017)

Autor: Juan Manuel Padró, Sonia Keunchkarian

Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET

Polysaccharide-based chiral stationary phases have been recognized as one of the most powerful ones for high performance liquid chromatography (HPLC) separations of chiral compounds in analytical and also in preparative scale. Immobilized polysacchar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96d8af75a84954154b3d65cb5dbd7d84
http://sedici.unlp.edu.ar/handle/10915/101968

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Scope of partial least-squares regression applied to the enantiomeric composition determination of ketoprofen from strongly overlapped chromatographic profiles

Autor: Jaiver Osorio-Grisales, Alejandro C. Olivieri, Cecilia B. Castells, Juan Manuel Padró, Juan A. Arancibia

Publikováno v: Journal of Separation Science. 38:2423-2430

Fil: Padro, Juan Manuel. Universidad Nacional de la Plata. Laboratorio de Investigacion y Desarrollo de Metodos Analiticos; Argentina. Consejo Nacional de Investigaciones Cientificas y Tecnicas; Argentina

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7682c4834a30aa5afd40174eff7868e5
https://doi.org/10.1002/jssc.201500217

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Development of an ionic-liquid-based dispersive liquid-liquid microextraction method for the determination of antichagasic drugs in human breast milk: Optimization by central composite design

Autor: Mario Reta, Romina Noel Echevarria, Juan Manuel Padró, Alicia Noemi Califano, Rocio Pellegrino Vidal

Publikováno v: CIC Digital (CICBA)
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA

Chagas disease constitutes a major public health problem in Latin America. Human breast milk is a biological sample of great importance for the analysis of therapeutic drugs, as unwanted exposure through breast milk could result in pharmacological ef

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc4bcf70cbf4df51b025c6e7ccaccbcf
https://doi.org/10.1002/jssc.201401367

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Automatized measurements of dihydrogen phosphate and Tris(hydroxymethyl) aminomethane in acetonitrile/water mixtures from 20 to 60°C

Autor: Agustín Acquaviva, Cecilia B. Castells, Juan Manuel Padró, Marcos Tascon, Leonardo Gabriel Gagliardi

Publikováno v: Talanta. 127:196-203

We measured pKa values of Tris(hydroxymethyl)aminomethane and dihydrogen phosphate; both are commonly used to prepare buffers for reverse-phase liquid chromatography (RPLC), in acetonitrile/water mixtures from 0% to 70% (v/v) (64.6% (w/w)) acetonitri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acbb1efc9ff0461fb00180954ddaaf33
https://doi.org/10.1016/j.talanta.2014.04.018

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Enantioseparation of the racemates of a number of pesticides on a silica-based column with immobilized amylose tris(3-chloro-5-methylphenylcarbamate)

Autor: Matías E. Díaz Merino, Juan Manuel Padró, Cecilia B. Castells, Romina Noel Echevarria, Ester Lubomirsky

Publikováno v: Microchemical Journal. 149:103970

We report here the results from studies on the high-performance liquid chromatographic HPLC enantioresolution of thirty different types of pesticides on the chiral silica-based column with immobilized amylose tris(3-chloro-5-methylphenylcarbamate (AC

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ddb2f1c9b375b4d7b006759e44f40e61
https://doi.org/10.1016/j.microc.2019.103970

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