Chemical analyzer non-invasive stirrer

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...

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422 63, 435 43, 435 47, 435174, 366127, G01N 3700, B01F 1102

Patent

active

057361002

ABSTRACT:
A chemical analyzer has turn tables respectively carrying reaction vessels, sample containers and reagent containers disposed thereon in circular rows. A sample pipetting mechanism and a reagent pipetting mechanism are provided to transfer predetermined amounts of sample and reagent solution from a sample container and from a reagent container into a reaction vessel. The thus transferred sample and reagent solution are mixed in the reaction vessel by a stirrer comprising a piezoelectric element which is disposed in non-contacting relationship to the sample and reagent solution in the reaction vessel and is electrically energized to generate a sound wave which causes a circulating flow of the reagent solution in the reaction vessel whereby the sample and the reagent solution are mixed in a non-invasive manner.

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