Method and apparatus for enhanced detection of toxic agents

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/02 (2006.01) G01N 33/53 (2006.01)

Patent

CA 2629307

A water quality analyzer for real-time detection according to the invention (100) comprises a biased AC electro-osmosis (ACEO) cell (154) for receiving a fluid to be analyzed having a plurality photosynthetic organisms therein, and concentrating the plurality photosynthetic organisms into at least one concentrated region. A photodetector (157) is provided for obtaining a measured photosynthetic activity of the plurality of photosynthetic organisms in the concentrated region responses to incident light from light source (105), wherein chemical, biological or radiological agents reduce a nominal photosynthetic activity of the photosynthetic organisms. An electronics package (158) analyzes the measured photosynthetic activity to indicate a presence of the chemical, biological or radiological agents in the fluid.

Un analyseur de la qualité de l'eau pour une détection en temps réel selon l'invention (100) comprend une cellule d'électro-osmose polarisée à courant alternatif (ACEO) (154) destinée à recevoir un liquide, contenant une pluralité d'organismes photosynthétiques, devant être analysé et à concentrer la pluralité d'organismes photosynthétiques dans au moins une région de concentration. Un photodétecteur (157) est prévu afin de mesurer l'activité photosynthétique de la pluralité d'organismes photosynthétiques dans la région de concentration en réponse à une lumière incidente provenant d'une source de lumière (105), où des agents chimiques, biologiques ou radiologiques font baisser l'activité photosynthétique nominale des organismes photosynthétiques. Un système électronique (158) analyse l'activité photosynthétique mesurée pour indiquer la présence d'agents chimiques, biologiques ou radiologiques dans le liquide.

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