![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABMkAAAYxCAIAAAAsbFyeAAAACXBIWXMAABYlAAAWJQFJUiTwAAAe8UlEQVR42uzZMRHEIABE0eMmHvBAiX8NlHhAxUZCCigyd+9J2O7PliQfAAAA2PA1AQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAACA37BGu9ZohgAAAP5H7dMIx/ktAQAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAADis9lmSGAIAAIAdfksAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAAE8uExy3RjMCwPvVPo0AAKf4LQEAANhVklgBAACAHX5LAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAoC0BAADQlgAAAGhLAAAAtCUAAABoSwAAALQlAAAA2hIAAABtCQAAANoSAAAAbQkAAIC2BAAAQFsCAACAtgQAAEBbAgAAoC0BAADQlgAAAKAtAQAA0JYAAABoSwAAALQlAAAAaEsAAAC0JQAAANoSAAAAbQkAAADaEgAAAG0JAACAtgQAAEBbAgAAgLYEAABAWwIAAKAtAQAA0JYAAACgLQEAANCWAAAAaEsAAAC0JQAAAGhLAAAAtCUAAADaEgAAAG0JAAAA2hIAAABtCQAAgLYEAABAWwIAAIC2BAAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAKAtAQAAQFsCAACgLQEAANCWAAAAaEsAAADQlgAAAGhLAAAAtCUAAADaEgAAALQlAAAA2hIAAABtCQAAgLYEAAAAbQkAAIC2BAAAQFsCAACgLQEAAEBbAgAAoC0BAADQlgAAAGhLAAAA0JYAAABoSwAAALQlAAAA2hIAAAC0JQAAANoSAAAAbQkAAIC2BAAAAG0JAACAtgQAAEBbAgAAoC0BAABAWwIAAKAtAQAA0JYAAABoSwAAANCWAAAAaEsAAAC0JQAAANoSAAAAtCUAAADaEgAAAG0JAACAtgQAAABtCQAAgLYEAABAWwIAAHC3X8dEAAAwEMIO/6brob8mEtjwlgAAAOAtAQAA8JYAAAB4SwAAALwlAAAAeEsAAAC8JQAAAN4SAAAAbwkAAADeEgAAAG8JAACAtwQAAMBbAgAAgLcEAADAWwIAAOAtAQAA8JYAAADgLQEAAPCWAAAAeEsAAAC8JQAAAHhLAAAAvCUAAADeEgAAAG8JAAAA3hIAAABvCQAAgLcEAADAWwIAAIC3BAAAwFsCAADgLQEAAPCWAAAA4C0BAADwlgAAAHhLAAAAvCUAAADeEgAAALwlAAAA3hIAAABvCQAAgLcEAAAAbwkAAIC3BAAAwFsCAADgLQEAAMBbAgAA4C0BAADwlgAAAHhLAAAA8JYAAAB4SwAAALwlAAAA3hIAAAC8JQAAAN4SAAAAbwkAAIC3BAAAAG8JAACAtwQAAMBbAgAA4C0BAADAWwIAAOAtAQAA8JYAAAB4SwAAAPCWAAAAeEsAAAC8JQAAAN4SAAAAvCUAAADeEgAAAG8JAACAtwQAAABvCQAAgLcEAADAWwIAAOAtAQAAwFsCAADgLQEAAPCWAAAAeEsAAADwlgAAAHhLAAAAvCUAAADeEgAAALwlAAAA3hIAAABvCQAAgLcEAAAAbwkAAIC3BAAAwFsCAADgLQEAAMBbAgAA4C0BAADwlgAAAHhLAAAA8JYAAAB4SwAAALwlAAAA3hIAAAC8JQAAAN4SAAAAbwkAAIC3BAAAAG8JAACAtwQAAMBbAgAA4C0BAADAWwIAAOAtAQAA8JYAAAB4SwAAAPCWAAAAeEsAAAC8JQAAAN4SAAAAvCUAAADeEgAAAG8JAACAtwQAAABvCQAAgLcEAADAWwIAAOAtAQAAwFsCAADgLQEAAPCWAAAAeEsAAADwlgAAAHhLAAAAvCUAAADeEgAAALwlAAAA3hIAAABvCQAAgLcEAAAAbwkAAIC3BAAAwFsCAADgLQEAAMBbAgAA4C0BAADwlgAAAHhLAAAA8JYAAAB4SwAAALwlAAAA3hIAAAC8JQAAAN4SAAAAbwkAAIC3BAAAAG8JAACAtwQAAMBbAgAA4C0BAADAWwIAAOAtAQAA8JYAAAB4SwAAAPCWAAAAeEsAAAC8JQAAAN4SAAAAbwkAAADeEgAAAG8JAACAtwQAAMBbAgAAgLcEAADAWwIAAOAtAQAA8JYAAADgLQEAAPCWAAAAeEsAAAC8JQAAAHhLAAAAvCUAAADeEgAAAG8JAAAA3hIAAABvCQAAgLcEAADAWwIAAIC3BAAAwFsCAADgLQEAAPCWAAAA4C0BAADwlgAAAHhLAAAAvCUAAAB4SwAAALwlAAAA3hIAAABvCQAAAN4SAAAAbwkAAIC3BAAAwFsCAACAtwQAAMBbAgAA4C0BAADwlgAAAOAtAQAA8JYAAAB4SwAAALwlAAAAeEsAAAC8JQAAAN4SAAAAbwkAAADeEgAAAG8JAACAtwQAAMBbAgAAgLcEAADAWwIAAOAtAQAA8JYAAADgLQEAAPCWAAAAeEsAAAC8JQAAAHhLAAAAvCUAAADeEgAAAG8JAAAA3hIAAABvCQAAgLcEAADAWwIAAIC3BAAAwFsCAADgLQEAAPCWAAAA4C0BAADwlgAAAHhLAAAAvCUAAAB4SwAAALwlAAAA3hIAAABvCQAAAN4SAAAAbwkAAIC3BAAAwFsCAACAtwQAAMBbAgAA4C0BAADwlgAAAOAtAQAA8JYAAAB4SwAAALwlAAAAeEsAAAC8JQAAAN4SAAAAbwkAAADeEgAAAG8JAACAtwQAAMBbAgAAgLcEAADAWwIAAOAtAQAA8JYAAADgLQEAAPCWAAAAeEsAAAC8JQAAAHhLAAAAvCUAAADeEgAAAG8JAAAA3hIAAABvCQAAgLcEAADAWwIAAIC3BAAAwFsCAADgLQEAAPCWAAAA4C0BAADwlgAAAHhLAAAAvCUAAAB4SwAAALwlAAAA3hIAAABvCQAAgLcEAAAAbwkAAIC3BAAAwFsCAADgLQEAAMBbAgAA4C0BAADwlgAAAHhLAAAA8JYAAAB4SwAAALwlAAAA3hIAAAC8JQAAAN4SAAAAbwkAAIC3BAAAAG8JAACAtwQAAMBbAgAA4C0BAADAWwIAAOAtAQAA8JYAAAB4SwAAAPCWAAAAeEsAAAC8JQAAAN4SAAAAvCUAAADeEgAAAG8JAACAtwQAAABvCQAAgLcEAADAWwIAAOAtAQAAwFsCAADgLQEAAPCWAAAAeEsAAADwlgAAAHhLAA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INVESTIGACIONES UCA, 2019-202062
SEPARACIÓN ENANTIOMÉRICA DE FUNGICIDAS QUIRALES POR
CROMATOGRAFÍA DE FLUIDOS SUPERCRÍTICOS
entre sí, pero no son superponibles, a cada una
de ellas se le conoce como enantiómero. Esta
es una forma de estereoisomería, es decir que
posee la misma forma molecular, las mismas
y su reactividad en entornos quirales, lo cual
hace que la toxicidad, degradabilidad y la bio-
actividad en cada uno de los enantiómeros pueda
El estudio de las sustancias quirales tiene gran
debe primero a la gran producción de pesticidas
a nivel mundial con un valor de cuatro millones
1996), (Ulrich y otros, 2012). En segundo lugar,
la falta de producción de pesticidas quirales
enantioméricamente trae como consecuencia
una diferencia en la actividad enantiomérica,
por ejemplo:
a) Una parte de los productos puede ser
inútil. b) Esta carga inútil hay que retirarla
de los sistemas ambientales donde se ha
utilizado, c) Una parte de los productos
pueden reaccionar con selectores celulares
diferentes y causar efectos secundarios y
potencialmente tóxicos (Williams, 1996).
Los fungicidas son un grupo importante de
sustancia de origen químico o biológico que tiene
la capacidad de matar y controlar el crecimiento
de hongos, mohos y esporas, tanto en plantas
como en animales, pero no solo cumplen esta
función, sino que generan un ambiente adecuado
para evitar el desarrollo y el crecimiento de
otros organismos interferentes en los cultivos
(Melgarejo García, 2011). Entre los fungicidas
como OH, O y otros metales (Andani, 2010),
de química y farmacéutica, por las necesidades
sociales, ambientales y económicas, han
aumentado su interés en vender productos
enantioméricamente puros (Ekhon, 2009), lo que
las ha llevado a desarrollar métodos analíticos
que permiten separar los enantiómeros. Entre
óptica rotatoria y dicroísmo circular) y los
Expositor e investigador
Luis Carlos Morán Alarcón
Departamento de Ingeniería de Procesos y
Ciencias Ambientales