Browsing by Author "Copaja, Sylvia"
Now showing items 1-4 of 4
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Vicuña Pérez, Verónica Aida (Universidad de Chile, 2004)En las últimas décadas, el interés en la protección y conservación del medio ambiente ha aumentado significativamente en el ámbito mundial. En Chile, el estudio de lagos y lagunas se ha realizado principalmente en el ...
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Sagredo Ordóñez, Priscilla Solange (Universidad de Chile, 2006)
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González Moraga, Guillermo; Díaz Valenzuela, Carlos; Copaja, Sylvia (Springer-Verlag, 1983)Reactions of bis(diethylamino) and dimorpholinosulfane with [Cu(H2O)6](ClO4)2 in acetonitrile and with CuCl2·2H2O in ethanol yield Cu(I) compounds and SO2. The reaction product of dimorpholinosulfane and CuCl2 in ethanol ...
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Garrido, Carlos; Clavijo, Ernesto; Copaja, Sylvia; Gómez Jeria, Juan; Campos Vallette, Marcelo (Elsevier Ltd, 2019)Carminic acid (CA) contained in one kind of gummy candy was detected and quantified by using vibrational and electronic spectroscopy, respectively; the proposed methodology in solution is simple and rapid without sample ...