Browsing by Author "201-0010568"
Now showing items 41-48 of 48
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Cerda Cavieres, Christopher David (Universidad de Chile, 2008)La presente Memoria se orientó al estudio y caracterización electro-analítica de una serie de derivados N-(4-R-benzoil)-2-(2-nitrofenil)-1-H-benzimidazoles como sustratos de interés biológico. Los compuestos estudiados ...
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Brain Isasi, S.; Requena, C.; Álvarez Lueje, Alejandro (SOC CHILENA QUIMICA, 2008-12)In this work all HPLC stability-indicating method was developed and applied to study the hydrolytic behavior of pravastatin in different pi-Is and temperatures. From the system suitability test, the selected chromatographic ...
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Álvarez Lueje, Alejandro; Valenzuela, C.; Squella Serrano, Juan; Núñez Vergara, Luis (AOAC INTERNATIONAL, 2005-11)In this work, a liquid chromatography stability-indicating method was developed and applied to study the hydrolytic behavior of simvastatin in different pH values and temperatures. The selected chromatographic conditions ...
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Voltammetric behavior and analytical applications of lomefloxacin, an antibacterial fluorquinolone Álvarez Lueje, Alejandro; López Alarcón, Camilo; Núñez Vergara, Luis; Squella Serrano, Juan (AOAC INTERNATIONAL, 2001-05)Lomefloxacin was reduced on a dropping mercury electrode, producing one or more peaks, depending on the pH of the aqueous medium. Coulometric measurements gave an experimental value of 1 electron for the main peak. ...
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Álvarez Lueje, Alejandro; Núñez Vergara, Luis; Pujol, Silvina; Squella Serrano, Juan (WILEY-V C H VERLAG GMBH, 2002-09)Lercanidipine is a new third generation 1,4-dihydropyridine calcium antagonist derivative used in hypertension treatments. From the structural point of view lercanidipine contains a nitroaromatic moiety which can be ...
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Voltammetric behavior of zaleplon and its differential pulse polarographic determination in capsules Larenas Gutiérrez, Gipsy; Bollo Dragnic, Soledad; Rodríguez, M.; Lemus Gutiérrez, Igor; Núñez Vergara, Luis; Squella Serrano, Juan; Álvarez Lueje, Alejandro (AOAC INTERNATIONAL, 2005-07)In this work both the electrochemical behavior and the analysis of the hypnotic pyrazolopyrimidine derivative zaleplon were studied. Zaleplon in ethanol-0.1 M Britton Robinson buffer solution (30-70) showed 2 irreversible, ...
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Voltammetric behaviour of clonixin and its differential pulse polarographic determination in tablets Álvarez Lueje, Alejandro; Sturm Schaub, Juan; Núñez Vergara, Luis; Carbajo, J.; Squella Serrano, Juan (MARCEL DEKKER INC, 2000)Clonixin, a non-steroid analgesic, can be both reduced at the mercury electrode and oxidised at the glassy carbon electrode. The anodic response shows well-defined waves in a pH range between pH 2-12. The polarographic ...
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Álvarez Lueje, Alejandro; Brain Isasi, B.; Núñez Vergara, Luis; Squella Serrano, Juan (ELSEVIER SCIENCE BV, 2008-05-15)Finasteride in hydroalcoholic solutions (ethanol/Britton-Robinson buffer, 30/70) exhibits cathodic response in a wide range of pH (-0.5 to 12) using differential pulse (DPP) and tast polarography (TP). The reduction peak ...