RT info:eu-repo/semantics/doctoralThesis
T1 Narices electrónicas en defensa: envejecimiento de pólvoras e identificación de explosivos en aire
A1 López Sánchez, Raúl
A2 Universidad de Valladolid. Escuela de Doctorado
K1 Vapores químicos
K1 Enoses
K1 Narices electrónicas
K1 Propellants
K1 Pólvoras
K1 IED
K1 Explosivos improvisados
K1 HME
K1 Explosivos caseros
K1 23 Química
AB 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).
YR 2025
FD 2025
LK https://uvadoc.uva.es/handle/10324/75318
UL https://uvadoc.uva.es/handle/10324/75318
LA spa
NO Escuela de Doctorado
DS UVaDOC
RD 24-abr-2025