Analysis apparatus

Details Analysis apparatus Analysis apparatus

1985-07-16

1987-02-03

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

204409, 422 82, 436 52, 436150, G01N 2726, G01N 3508

Patent

active

046408215

ABSTRACT:
A system for analyzing a biological fluid or the like includes a series flow loop that extends between an inlet valve array and an outlet valve array. The flow loop includes an analysis region to which a measuring system is connected in sensing relation and an accumulator chamber connected to the outlet of the analysis region. The inlet valve array is arranged to selectively and alternately connect a sample inlet port and an auxiliary fluid reservoir to the flow loop while the outlet valve array is arranged to selectively connect a controlled source of reduced pressure to the flow loop. The volume of the accumulator chamber is at least as great as the volume of the flow loop (including the analysis region) between the inlet valve array and the accumulator chamber and the system is arranged to capture reduced pressure in the flow loop, the captured reduced pressure then being used to provide the sole transfer force to gently and reliably transfer a minute quantity of fluid to be analyzed from the sample inlet port through the analysis region and at least partially fill the accumulator chamber.

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