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Clinical Chemistry 21: 1667-1668, 1975;
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Clinical Chemistry, Vol 21, 1667-1668, Copyright © 1975 by the American Association for Clinical Chemistry

Device for More Economical Standby Operation of Continuous-Flow Analyzers

Stephen C. Wardlaw 1

1 Department of Laboratory Medicine, Yale-New Haven Hospital, New Haven, Conn. 06504

To decrease the reagent-consumption rate of continuous-flow analyzers, I constructed a device that allows standby operation. The device, when actuated by switching off the sampler, decreases the effective pumping rate to less than 1/15 normal. The bubble pattern remains virtually undisturbed, and the system can be immediately restarted for emergency use. During five months of use in our laboratory with a Technicon platelet counter, the device has decreased reagent consumption by 60%, while allowing 24-hour-a-day operation. There have been no analytical errors traceable to the device, and no mechanical problems have arisen. I describe the use of the device in a continuous-flow system for determination of creatinine

Submitted on April 7, 1975
Accepted on July 22, 1975






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Copyright © 1975 by the American Association for Clinical Chemistry.