Alternative to High Pressure Mercury Vapor Lamp for Photo Induced Fluorescence Analytical Methods; Application to the Determination of Pesticides in Water
| Autor: | Pape Abdoulaye Diaw, O.M.A. Mbaye, Jean-Pierre Bakhoum, Gaël Le Roux, Lamine Cisse, Ndeye A. Diop, Philippe Giamarchi, Bernard Le Jeune, Mame Diabou Gaye-Seye |
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| Přispěvatelé: | Laboratoire d'Optique et de Magnétisme (OPTIMAG), Institut Brestois Santé Agro Matière (IBSAM), Université de Brest (UBO)-Université de Brest (UBO)-Centre Hospitalier Régional Universitaire de Brest (CHRU Brest) |
| Rok vydání: | 2021 |
| Předmět: |
[PHYS]Physics [physics]
Gas-discharge lamp genetic structures 010401 analytical chemistry Analytical chemistry chemistry.chemical_element 02 engineering and technology Pesticide 021001 nanoscience & nanotechnology 01 natural sciences Fluorescence Fluorescence spectroscopy 0104 chemical sciences Analytical Chemistry Mercury (element) law.invention Mercury-vapor lamp chemistry law High pressure sense organs Irradiation 0210 nano-technology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Analytical Sciences Analytical Sciences, Nihon Bunseki Kagakkai, 2021, 37 (8), pp.1177-1180. ⟨10.2116/analsci.20N037⟩ |
| ISSN: | 1348-2246 0910-6340 |
| DOI: | 10.2116/analsci.20n037 |
| Popis: | The photo-induced fluorescence method is often applied to determine non-native fluorescent compounds. It typically uses UV irradiation from a high pressure mercury vapor discharge lamp to create photo-induced fluorescent compounds, which are then quantified by fluorescence spectroscopy. However, these mercury lamps require a high-voltage power supply and may accidentally induce electric shocks and the release of mercury vapors. As an alternative, we have evaluated in this technical note new UV-C germicidal lamps. These lamps exhibit a higher power at 254 nm and allowed us to obtain a far greater amount of photo-induced compounds in a shorter time. For the first time, this new irradiation system has been applied for the determination of pesticides in water and has shown a significant increase in the method sensitivity. These good results allowed us to conclude that the new UV-C lamps are a relevant alternative to high pressure mercury vapor discharge lamps for use with photo induced fluorescent methods. |
| Databáze: | OpenAIRE |
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