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Alternative to High Pressure Mercury Vapor Lamp for Photo Induced Fluorescence Analytical Methods; Application to the Determination of Pesticides in Water

Abstract : 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 m
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https://hal.univ-brest.fr/hal-03476628
Contributor : Jacqueline LE BARS Connect in order to contact the contributor
Submitted on : Monday, December 13, 2021 - 9:44:29 AM
Last modification on : Tuesday, June 7, 2022 - 3:18:53 PM
Long-term archiving on: : Monday, March 14, 2022 - 6:32:02 PM

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Ndeye Diop, Jean-Pierre Bakhoum, Pape Diaw, Olivier Mbaye, Lamine Cisse, et al.. Alternative to High Pressure Mercury Vapor Lamp for Photo Induced Fluorescence Analytical Methods; Application to the Determination of Pesticides in Water. Analytical Sciences, 2021, 37 (8), pp.1177-1180. ⟨10.2116/analsci.20N037⟩. ⟨hal-03476628⟩

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