Détection de traces d’éléments lanthanides par fluorescence en temps résolu : application industrielle au marquage anti contrefaçon et à l'analyse chimique

Abstract : Time-resolved fluorescence is an advanced spectrophotometric analysis method which allows the selection of emitted luminescent photons on a time-based parameters. It is possible to extract the signal of long-lived luminescent species even in complex and polluted matrix from the industry. This type of analysis is especially fitted for the detection of lanthanide ions. During this thesis two technologies based on time-resolved analysis were designed to answer specific industrial problematics. The first one yields the residual concentration of chemical additives used during oil and gas extraction. The second one aims at protecting crude oils and refined fuels from counterfeiting. They both rely on the use of lanthanide complex and the measurement of their luminescent properties. A prototype of time-resolved spectrofluorimeter was also built to transfer the technologies from the laboratory to the industrial world
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Chimie analytique. Université de Lyon, 2018. Français. 〈NNT : 2018LYSE1012〉
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Arthur Marais. Détection de traces d’éléments lanthanides par fluorescence en temps résolu : application industrielle au marquage anti contrefaçon et à l'analyse chimique. Chimie analytique. Université de Lyon, 2018. Français. 〈NNT : 2018LYSE1012〉. 〈tel-01812766〉

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