Browsing Escuela de Química by Author "Alfaro Solís, Rosa"
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Diseño de un sistema de muestreo y análisis espectrofluorométrico de etanol en aire, utilizando alcohol oxidasa inmovilizada sobre perlas de vidrio, en el ingenio Taboga
Alfaro Solís, Rosa (Universidad Nacional (Costa Rica), 2009-10)Se diseñó un método simple y rápido para la determinación de concentraciones mayores a 0,23 mg/m3 de etanol en aire, utilizando una espiral de vidrio, enfriada en su parte externa, para el muestreo y un sistema de inyección ... -
Drone monitoring of volcanic lakes in Costa Rica: a new approach
Sibaja, José; Terada, Akihiko; Alfaro Solís, Rosa; Cambronero Luna, Mario; Umaña Castro, Danilo; Porras Ramírez, Daniel; Sánchez-Gutiérrez, Rolando; Martínez Arroyo, Mariela; Godfrey, Ian; Martínez Cruz, María (Canadian Science Publishing, 2023)For the first time ever, samples were collected from volcanic lake waters in Costa Rica using an unmanned aerial vehicle (drone), which represents a major achievement in human–machine interaction and innovation in the ... -
Lead acid battery recycling in Costa Rica: A case study
Esquivel Hernández, Germain; Bolaños - Ulloa, P.; Navarro - Monge, M.; Alfaro Solís, Rosa; Sibaja Brenes, J.P.; Mora - Barrantes, J.C.; Valdés - González, J. (WIT Transactions on Ecology and the Environment, 2012)This work describes the production of secondary lead in a smelter located in Costa Rica. The only input of the plant is scrap automotive batteries. We describe the environmental management strategies used for waste ... -
Spatial and Temporal Variation of Stable Isotopes in Precipitation across Costa Rica: An Analysis of Historic GNIP Records
Sánchez Murillo, Ricardo; Esquivel Hernández, Germain; Welsh, Kristen; S. Brooks, Erin; Boll, Jan; Alfaro Solís, Rosa; Valdés González, Juan (2013-11-27)The location of Costa Rica on the Central American Isthmus creates unique microclimate systems that receive moisture inputs directly from the Caribbean Sea and the Pacific Ocean. In Costa Rica, stable isotope monitoring ...