Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Patent
1979-10-22
1981-06-02
Serwin, Ronald
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Sample mechanical transport means in or for automated...
23230B, 23915, 422 67, 364497, G01N 3354
Patent
active
042711231
ABSTRACT:
A sample analyzer for quantitating relatively small amounts of clinically significant compounds in a liquid sample together with a sample mixing device (sampler) is disclosed. The analyzer has a transparent cell for holding the liquid sample. A light source focuses a stable light beam onto the sample so that fluorescent particles in the sample cause fluorescent emissions, the intensity of which is a function of the intensity of the light beam and the concentration of fluorescent particles in the sample. A detector in optical communication with the cell receives and senses photons forming the fluorescent emissions of the particles when excited by the light beam. The sampler holds a multiplicity of vials in an upright position in a row, advances the vials in incremental steps to present them at an aspiration station and includes an aspirator having a downwardly open suction tube that is vertically inserted into and withdrawn from the vials. A vacuum source withdraws the liquid sample from the vials through the suction tube and flows it to the sample cell in the analyzer. A mixer surrounds the suction tube and is activated before the sample is withdrawn form a uniform suspension.
REFERENCES:
patent: 3728079 (1973-04-01), Moran
patent: 4043756 (1977-08-01), Sommervold
patent: 4150949 (1979-04-01), Smith
patent: 4153675 (1979-05-01), Kleinerman
patent: 4170625 (1979-10-01), Welch
patent: 4201763 (1980-05-01), Monthony et al.
Curry Robert E.
Schwartz Eric D.
Simonsen Michael G.
Bio-Rad Laboratories, Inc.
Serwin Ronald
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