Browsing by Author "Orellana, Sandra"
Now showing items 1-6 of 6
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Araya Hermosilla, Esteban; Muñoz, Daniel; Orellana, Sandra; Yáñez, Alejandro; Olea, Andrés F.; Oyarzún Ampuero, Felipe; Moreno Villoslada, Ignacio (Elsevier, 2014)Immobilization of rhodamine 6G in calcium alginate microcapsules was achieved using the polyanion bearing negatively charged aromatic groups poly(sodium 4-styrenesulfonate) as complexing agent. The immobilization of the ...
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Araya Hermosilla, Esteban; Muñoz, Daniel; Orellana, Sandra; Yáñez, Alejandro; Olea, Andrés F.; Oyarzún Ampuero, Felipe; Moreno Villoslada, Ignacio (Elsevier, 2014)Immobilization of rhodamine 6G in calcium alginate microcapsules was achieved using the polyanion bearing negatively charged aromatic groups poly(sodium 4-styrenesulfonate) as complexing agent. The immobilization of the ...
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Oyarzún Ampuero, Felipe; Vidal, Alejandra; Concha, Miguel; Morales Montecinos, Javier; Orellana, Sandra; Moreno Villoslada, Ignacio (Bentham, 2015)The treatment of skin wounds represents an important research area due to the important physiological and aesthetic role of this tissue. During the last years, nanoparticles have emerged as important platforms to treat ...
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Toral Ponce, María; Rivas, Jorge; Sadías, Marta; Soto Salazar, César; Orellana, Sandra (SOC CHILENA QUIMICA, 2008-06)A rapid method for the simultaneous determination of acetaminophen (A) and tramadol (T) by second derivative spectrophotometric has been developed. From a solvent effect studies and the spectral behaviours of A and T, ...
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Soto Salazar, César; Contreras, David; Orellana, Sandra; Yáñez, Jorge; Toral Ponce, María (JAPAN SOC ANALYTICAL CHEMISTRY, 2010-08-10)The simultaneous determination of albendazole (ABZ) and praziquantel (PZQ) was performed by different mathematical approaches: second derivative spectrophotometry (SDS), classical least squares, regression of partial least ...
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Orellana, Sandra; Soto Salazar, César; Toral Ponce, María (2010)The present study shows the formation and characterization of the ionic-pair between the antibiotic oxytetracycline and the dye crystal violet in ammonia solutionpH9.0±0.2 extracted into chloroform. The characterization ...