Narices electrónicas en defensa: envejecimiento de pólvoras e identificación de explosivos en aire
This dissertation addresses the identification and quantification of chemical vapours using electronic noses (enoses), tackling two significant analytical challenges in the fields of Security and Defence: the stability studies of nitrocellulose-based propellants and the identification of homemade ex...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de Valladolid |
| Repositorio: | UVaDOC. Repositorio Documental de la Universidad de Valladolid |
| OAI Identifier: | oai:uvadoc.uva.es:10324/75318 |
| Acceso en línea: | https://doi.org/10.35376/10324/75318 https://uvadoc.uva.es/handle/10324/75318 |
| Access Level: | acceso abierto |
| Palabra clave: | Vapores químicos Enoses Narices electrónicas Propellants Pólvoras IED Explosivos improvisados HME Explosivos caseros 23 Química |
| Sumario: | This dissertation addresses the identification and quantification of chemical vapours using electronic noses (enoses), tackling two significant analytical challenges in the fields of Security and Defence: the stability studies of nitrocellulose-based propellants and the identification of homemade explosives. Enoses are platforms that, using sensor arrays and chemometric methods, can offer high sensitivity and considerable selectivity. This research employs chemoresistive metal oxide (MOx) sensors, developing two enose systems named "Azotic" and "Belerofonte." The "Azotic" system focuses on analysing the stability of nitrocellulose-based propellants, providing a technological upgrade to traditional methods (such as classical tests). In contrast, "Belerofonte" has been designed as a portable enose system capable of rapidly identifying certain homemade explosives without direct contact with the solid. The research begins with a critical study of the current response models for MOx sensors and enoses, highlighting the need to develop customized response models for each specific problem. The subsequent mathematical analysis of the response, tailored to each model, has enabled both the validation of the tests and a critical assessment of the advantages and limitations of the proposed systems. At the conclusion of this manuscript, evidence is presented regarding the contributions of both enoses to the current state of the art in their respective domains. Firstly, "Azotic" is proposed as a viable alternative for replacing current detectors (such as indicator paper) in certain surveillance tests of nitrocellulose-based propellants. Secondly, the "Belerofonte" enose has demonstrated its capability to rapidly and portably identify Triacetone Triperoxide (TATP). |
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