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dc.contributor.authorPinzón León, Elkin Mauricio.-
dc.date.accessioned2026-10-16T02:21:24Z-
dc.date.available2024-
dc.date.available2026-10-16T02:21:24Z-
dc.date.issued2024-
dc.identifier.citationPinzón León, E. M. (2024). Construcción de una base de datos espectrales de referencia mediante atr-ftir, para la identificación de sustancias controladas en Colombia. [Trabajo de Grado Pregrado, Universidad de Pamplona]. Repositorio Hulago Universidad de Pamplona. https://repositoriodspace.unipamplona.edu.co/jspui/handle/20.500.12744/11806es_CO
dc.identifier.urihttps://repositoriodspace.unipamplona.edu.co/jspui/handle/20.500.12744/11806-
dc.descriptionEn Colombia, la producción de drogas ilícitas sigue siendo un factor de alto impacto en el conflicto interno del país, lo que ha obligado a las autoridades a intensificar los controles de sustancias químicas controladas, las cuales son fundamentales durante la síntesis de sustancias psicoactivas. De acuerdo a lo anterior, en esta investigación, realizada en conjunto con la Fiscalía General de la Nación, se creó una base de datos espectrales de referencia para sustancias químicas controladas, constatadas en la resolución 0001 del 8 de enero del 2015 en el territorio nacional, todo con la finalidad de asentar una base teórica sobre la información espectral de cada sustancia analizada mediante ATR-FTIR. En primer lugar, se tomaron muestras proporcionadas por la Fiscalía y se analizaron con ATR-FTIR para determinar el perfil químico de cada sustancia, así mismo se utilizaron herramientas multivariables como PCA y HAC para determinar diferencias entre muestras de tipo comercial; por último, se realizó un análisis R&R para evaluar la variabilidad en los espectros de las sustancias estudiadas al cambiar de analista. En los resultados obtenidos resalta la base de datos espectrales, la cual se soportó con un perfilamiento químico de cada sustancia, mostrando las asignaciones características de cada sustancia química analizada. También se observó la discriminación de muestras de cemento, thinner y gasolina de acuerdo a su información espectral de primer orden ya que presentó la mayor explicación de la varianza; para finalizar y dar fiabilidad estadística a la investigación, se encontró que en el estudio de variación de las medidas mediante el análisis R&R, el valor de contribución a la varianza del estudio (9,37 %) está por debajo del umbral del 10%.es_CO
dc.description.abstractIn Colombia, the production of illicit drugs continues to be a factor with a high impact on the country’s internal conflict, which has forced the authorities to intensify controls on controlled chemicals, which are fundamental during the synthesis of psychoactive substances. In accordance with the foregoing, this investigation, carried out in conjunction with the Office of the Attorney-General of the Nation, created a spectral reference database for controlled chemicals, as established in resolution 0001 of 8 January 2015 in the national territory, all in order to establish a theoretical basis on the spectral information of each substance analyzed by ATR-FTIR. First, samples provided by the Office of the Prosecutor were taken and analyzed with ATR-FTIR to determine the chemical profile of each substance, and multivariate tools such as PCA and HAC were used to determine differences between commercial samples; finally, an R&R analysis was performed to evaluate the variability in the spectra of the substances studied when changing analyst. In the results obtained highlights the spectral database, which was supported by a chemical profiling of each substance, showing the characteristic assignments of each chemical analyzed. The discrimination of cement, thinner and gasoline samples according to their first-order spectral information was also observed as it presented the greatest explanation for variance; to finalize and give statistical reliability to the research, it was found that in the study of variation of measures by R&R analysis, the value of contribution to the variance of the study (9.37%) is below the 10% threshold.es_CO
dc.format.extent118es_CO
dc.format.mimetypeapplication/pdfes_CO
dc.language.isoeses_CO
dc.publisherUniversidad de Pamplona - Facultad de Ciencias Básicas.es_CO
dc.subjectATR-FTIR.es_CO
dc.subjectSustancias controladas.es_CO
dc.subjectBase de datos.es_CO
dc.subjectReproducibilidad.es_CO
dc.subjectRepetibilidad.es_CO
dc.titleConstrucción de una base de datos espectrales de referencia mediante atr-ftir, para la identificación de sustancias controladas en Colombia.es_CO
dc.typehttp://purl.org/coar/resource_type/c_7a1fes_CO
dc.date.accepted2024-
dc.description.editionUniversidad de Pamplona - Facultad de Ciencias Básicas.es_CO
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