Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Sample mechanical transport means in or for automated...
Patent
1996-11-13
1998-11-10
Le, Long V.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Sample mechanical transport means in or for automated...
422 81, 422 8203, 422100, 422103, 436 43, 436 47, 436 54, 436180, 25112917, 417415, 417534, 417536, G01N 3510
Patent
active
058339256
ABSTRACT:
An ion selective electrode assembly is provided having a sample injection cup, a flow cell analyzer and multiple module pump for simultaneously pumping liquids between the sample injection cup and the flow cell analyzer using a single motor. One of the pump modules is capable of pumping a reference solution directly to the flow cell analyzer. Flow through each pumping module is controlled by a pair of rocker valves. The sample injection cup includes a first diaphragm valve for allowing a mixture of sample and reagent to flow to the flow cell analyzer. The sample injection cup further includes a second diaphragm valve installed immediately downstream of the first diaphragm for allowing a flushing solution to flow throughout the sample injection cup and the flow cell analyzer.
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Butcher Bradley A.
Shu Frank R.
Wilson Daniel J.
Beckman Instruments Inc.
Harder P. R.
Le Long V.
May William H.
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