Comparación de métodos para evaluar la homogeneidad de un prototipo a material de referencia de arsénico total en arroz
| dc.contributor.advisor | Castillo Serna, Elianna | |
| dc.contributor.advisor | Ágreda Bastidas, Jesús Alberto | |
| dc.contributor.author | Gonzalez Ruiz, Valentina | |
| dc.contributor.cvlac | Gonzalez Ruiz, Valentina [0001826071] | |
| dc.contributor.orcid | Gonzalez Ruiz, Valentina [0009000472694651] | |
| dc.contributor.researchgate | Gonzalez Ruiz, Valentina [Valentina-Gonzalez-26] | |
| dc.contributor.researchgroup | Grupo de Estudios para la Remediación y Mitigación de Impactos Negativos al Ambiente Germina | |
| dc.date.accessioned | 2026-07-07T23:27:39Z | |
| dc.date.available | 2026-07-07T23:27:39Z | |
| dc.date.issued | 2026-01-27 | |
| dc.description | ilustracioneas a color, diagramas, fotrografías | spa |
| dc.description.abstract | Los materiales de referencia certificados (MRC) de arsénico en arroz son escasos, costosos y poco asequibles. Teniendo esto en cuenta, resulta relevante producir un MRC de arsénico total (tAs) en arroz. Así, en este trabajo, se produjeron 60 unidades de un prototipo de material de referencia de As en arroz con código INM-046-01. Al candidato a MRC se le determinó la homogeneidad mediante la medición del contenido de tAs usando plasma acoplado inductivamente con detección de masas (ICP-MS) y absorción atómica con generación de hidruros (HG-AAS). Ambas metodologías se validaron y con ellas se determinó la incertidumbre asociada a la homogeneidad del material piloto, la cual resultó ser aceptable y, así, el candidato MRC resultó ser homogéneo y por lo tanto cumple uno de los requisitos para convertirse en un MRC. (Texto tomado de la fuente) | spa |
| dc.description.abstract | Certified Reference Materials (CRM) for arsenic in rice are scarce, expensive, and not widely available. Therefore, it is important to produce a CRM for total arsenic (tAs) in rice. In this study, 60 units of a CRM candidate, code INM-046-01, were produced. The homogeneity of the CRM candidate was determined by measuring the tAs content using inductively coupled plasma mass spectrometry (ICP-MS) and hydride generation atomic absorption spectroscopy (HG-AAS). Both methodologies were validated and with them the uncertainty associated with the homogeneity of the pilot material was determined, which turned out to be acceptable and, thus, the candidate for MRC is homogeneous and meets one of the requirements to become a CRM. | eng |
| dc.description.degreelevel | Maestría | |
| dc.description.degreename | Magíster en Química | |
| dc.description.researcharea | Química analítica | |
| dc.description.sponsorship | Este trabajo se desarrollo gracias a ICETEX y Minciencias financiando la investigación a través del proyecto “Desarrollo de referencias de medición para la cuantificación de especies tóxicas de mercurio y arsénico en alimentos”, y al convenio entre la Universidad Nacional de Colombia y el Instituto Nacional de Metrología de Colombia | |
| dc.format.extent | xvi, 98 páginas | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.instname | Universidad Nacional de Colombia | spa |
| dc.identifier.reponame | Repositorio Institucional Universidad Nacional de Colombia | spa |
| dc.identifier.repourl | https://repositorio.unal.edu.co/ | spa |
| dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/90330 | |
| dc.language.iso | spa | |
| dc.publisher | Universidad Nacional de Colombia | |
| dc.publisher.branch | Universidad Nacional de Colombia - Sede Bogotá | |
| dc.publisher.faculty | Facultad de Ciencias | |
| dc.publisher.place | Bogotá, Colombia | |
| dc.publisher.program | Bogotá - Ciencias - Maestría en Ciencias - Química | |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | |
| dc.rights.license | Reconocimiento 4.0 Internacional | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject.ddc | 540 - Química y ciencias afines | |
| dc.subject.lemb | ARSENICO | spa |
| dc.subject.lemb | Arsenic | eng |
| dc.subject.lemb | SUELOS-CONTENIDO DE ARSENICO | spa |
| dc.subject.lemb | Soils - arsenic content | eng |
| dc.subject.lemb | ARROZ-PROCESAMIENTO | spa |
| dc.subject.lemb | Rice processing | eng |
| dc.subject.lemb | HARINA DE ARROZ | spa |
| dc.subject.lemb | Rice flour | eng |
| dc.subject.lemb | ESPECTROMETRIA DE MASAS | spa |
| dc.subject.lemb | Mass spectrometry | eng |
| dc.subject.lemb | QUIMICA ORGANICA | spa |
| dc.subject.lemb | Chemistry, organic | eng |
| dc.subject.proposal | Arsénico | spa |
| dc.subject.proposal | Arroz | spa |
| dc.subject.proposal | Material de referencia a nivel piloto | spa |
| dc.subject.proposal | Homogeneidad de un MR a nivel piloto | spa |
| dc.subject.proposal | Material de referencia a nivel piloto | spa |
| dc.subject.proposal | HG-AAS | eng |
| dc.subject.proposal | ICP-MS | eng |
| dc.subject.proposal | Arsenic | eng |
| dc.subject.proposal | Rice | eng |
| dc.subject.proposal | Certified reference material candidate | eng |
| dc.subject.proposal | Homogeneity of an MR at the pilot stage | eng |
| dc.title | Comparación de métodos para evaluar la homogeneidad de un prototipo a material de referencia de arsénico total en arroz | spa |
| dc.title.translated | Comparison of methods for assessing homogeneity of a prototype reference material of total arsenic in rice | eng |
| dc.type | Trabajo de grado - Maestría | |
| dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | |
| dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | |
| dc.type.content | Text | |
| dc.type.driver | info:eu-repo/semantics/masterThesis | |
| dc.type.redcol | http://purl.org/redcol/resource_type/TM | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |
| dcterms.audience.professionaldevelopment | Estudiantes | |
| dcterms.audience.professionaldevelopment | Investigadores | |
| dcterms.audience.professionaldevelopment | Maestros | |
| dcterms.audience.professionaldevelopment | Público general | |
| oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | |
| oaire.awardtitle | Convocatoria 890 del 2020: Desarrollo de referencias de medición para la cuantificación de especies tóxicas de mercurio y arsénico en alimentos | |
| oaire.fundername | ICETEX | |
| oaire.fundername | MinCiencias |
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