Multistation analytical photometer and method of use
Abstract
Abstract AN ANALYTICAL PHOTOMETER WHEREIN PRECIPITATES RE REMOVED FROM A MULTIPLICITY OF DISCRETE SAMPLES BY CENTRIFUGATION PRIOR TO TRANSFER OF THE SAMPLES TO RESPECTIVE CUYETTES IN A ROTARY CUVETTE SYSTEM FOR PHOTOMERIC MEASUREMENT. A CENTRAL TRANSFER DISC IS PROVIDED WITH A FIRST SERIES OF CHAMBERS WHICH SEPARATELY RETAIN PRECIPITATING SOLUTIONS WHILE AT REST, AND RELEASE THE SOLUTIONS TO RESPECTIVE SEDIMENTATION CHAMBERS UPON ROTATION. A THIRD SERIES OF CHAMBERS RECEIVES THE SUPERNATANT FROM RESPECTIVE SEDIMENTATION CHAMBERS BY GRAVITY FLOW WHEN THE TRANSFER DISC AND CUVETTE SYSTEM ARE BROUGHT TO REST. THE SUPERNATANT MAY THEN BE TRANSFERRED CENTRIFUGALLY TO RESPECTIVE CUVETTES IN THE ROTARY CUVETTE SYSTEM SURROUNDING THE TRANSFER DISC. A LIGHT SOURCE AND DETECTOR ARE ALIGNED WITH TRANSPARENT WINDOWS IN THE CUVETTES TO DETERMINE CHEMICAL SPECIES CONCENTRATIONS BY LIGHT ABSORBANCY IN THE SAMPLES CONTAINED IN THE CUVETTES. MEANS ARE PROVIDED FOR RECEIVING THE OUTPUT OF THE DETECTOR AND INDIVIDUALLY INDICATING THE PHOTOTRANSMITTANCE OF SAMPLES WITHIN THE CUVETTES.
Inventors
- 👤 Norman G Anderson
Bibliographic Details
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