G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/64 (2006.01) G01N 21/94 (2006.01) G01N 33/28 (2006.01)
Patent
CA 2418871
The method detects the presence of poly-chlorinated biphenyls on a surface, by the use of UV fluorescence spectroscopy in the back-emitting mode. The apparatus comprises a source of UV radiation. Exposure means are provided for conveying UV radiation from the source to the surface. Collecting means collect radiation back-emitted from the surface. A filter filters the collected radiation, and a spectrometer analyses the filtered collected radiation. The filter allows radiation having a wavelength within the range of from 320 nm to 360 nm to pass to the spectrometer.
L'invention concerne un procédé de détection de la présence de biphényles polychlorinés sur une surface en utilisant la spectroscopie par fluorescence de rayons ultraviolets en mode de rétroémission. L'appareil comprend une source de rayons ultraviolets. Des moyens d'exposition permettent de transférer ces rayons ultraviolets de la source à la surface. Des moyens de collection recueillent les rayons rétroémis depuis la surface. Un filtre permet de filtrer les rayons recueillis et un spectromètre analyse les rayons recueillis et filtrés. Le filtre permet aux rayons de présenter une longueur d'onde comprise entre 320 nm et 360 nm, afin de passer au spectromètre.
Hodgkinson Jane Elizabeth
Gowling Lafleur Henderson Llp
Lattice Intellectual Property Limited
Lattice Intellectual Property Ltd.
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