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Laboratory samplers designed for sequentially aspirating aliquots of liquid samples and delivering them to automated chemical analyzers or other laboratory equipment. These devices typically use robotic arms and/or other automated mechanisms to sample serum or other body fluids directly from primary collection tubes and/or from tubes or cups filled with body fluids transferred from the original collection tube. The cups or tubes are automatically covered until immediately before the specimen is analyzed to avoid evaporation. The samples are then transferred, usually at a uniform rate, either to a holding zone (which may be refrigerated) or directly to the loading zone of an analyzer or other piece of laboratory equipment. Automated samplers are intended for use as independent units, as a part of a laboratory automation system, or for both purposes.
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