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dc.contributor.advisorTorrenegra Guerrero, Rubén Darío, dir.spa
dc.contributor.authorMosquera Estrada, Jairspa
dc.date.accessioned2019-08-22T15:09:11Zspa
dc.date.available2019-08-22T15:09:11Zspa
dc.date.issued2011spa
dc.identifier.urihttps://repository.udca.edu.co/handle/11158/1992spa
dc.description86 páginas : gráficasspa
dc.description.abstractLa presencia de Nitrosaminas en productos cosméticos, son una preocupación internacional por su potencial efecto carcinogénico en humanos. Las regulaciones en la Comunidad Europea y Norteamérica establecen un límite máximo (10 ppb) de Nitrosodietanolamina. Pueden contaminar cosméticos, debido a materias primas, proceso y almacenamiento si existen agentes nitrosantes (nitritos, óxidos de nitrógeno). En Colombia no se realiza este análisis y se requiere la implementación de técnicas analíticas para determinarlas. El objetivo es estandarizar una técnica analítica económica para determinar nitrosodietanolamina en champú entre 10 – 100 ppb. Se prepararon curvas de calibración en acetato de etilo y matrices sintéticas de Agua: Genapol LRO (72:28) con diferentes concentraciones de nitrosodietanolamina. En las curvas se obtuvieron (r2) entre 0,9858 y 0, 9940, y (r) entre 0,9929 y 0, 9970. Las matrices sintéticas se sometieron a extracción en fase sólida normal, usando como absorbente Florisil y Diclorometano: Isopropanol (90:10) como solvente de elución.Los extractos se evaporaron a sequedad, se diluyeron con acetato de etilo y se inyectaron al cromatógrafo de gases con detector µECD y columna DB-WAX, rampa de temperatura entre 170 a 240°C a una rata de 20°C/min. La recuperación obtenida estuvo entre 83 a 110 %, desviaciones estándar relativa entre 6 a 7% y limite de detección de 3 ppb de Nitrosodietanolamina. La Técnica analítica implementada brinda buenas predicciones entre 10 – 100 ppb. Los costos son económicos para los laboratorios de Control de Calidad si estos preparan los cartuchos. Se recomienda validar técnica y realizar estudio utilizando Champú mediante adición de estándar.spa
dc.format.mimetypeapplication/pdfspa
dc.language.isospaspa
dc.publisherBogotá : Universidad de Ciencias Aplicadas y Ambientales, 2011spa
dc.rightsDerechos Reservados - Universidad de Ciencias Aplicadas y Ambientalesspa
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.subject.meshFarmacovigilanciaspa
dc.subject.meshCarcinógenosspa
dc.titleEstandarización de una técnica analítica por CG-ECD para determinación de introsaminas en champúspa
dc.typeTrabajo de grado - Pregradospa
dc.rights.accessrightsinfo:eu-repo/semantics/closedAccessspa
dc.description.notesIncluye bibliografíaspa
dc.identifier.localQI005 L65e 2011 (204541)spa
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dc.rights.creativecommonsAtribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0)spa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1fspa
dc.type.driverinfo:eu-repo/semantics/bachelorThesisspa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
dc.subject.agrovocNitrosaminasspa
dc.description.degreelevelPregradospa
dc.description.degreenameQuímico(a)spa
dc.publisher.facultyFacultad de Cienciasspa
dc.publisher.programQuímicaspa
dc.type.contentTextspa
dc.type.redcolhttp://purl.org/redcol/resource_type/TPspa
oaire.accessrightshttp://purl.org/coar/access_right/c_14cbspa
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa


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