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Method and apparatus for automated quantitative fluid analysis

  • US 3,876,374 A
  • Filed: 03/22/1974
  • Issued: 04/08/1975
  • Est. Priority Date: 03/22/1974
  • Status: Expired due to Term
First Claim
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1. A METHOD OF ANALYZING A FLUID SAMPLE FOR A CONSTITUENT OF INTEREST, COMPRISING THE STEPS OF:

  • FLOWING THE SAMPLE ALONG A FIRST CONDUIT PORTION AND OUTLETTING THE SAMPLE FROM SAID FIRST CONDUIT PORTION TO THE INLET OF A SECOND CONDUIT PORTION;

    TREATING THE SAMPLE IN SAID SECOND CONDUIT PORTION TO EFFECT A RATE REACTION OF THE SAMPLE;

    REVERSING THE FLOW OF THE TREATED SAMPLE IN SAID SECOND CONDUIT PORTION SO THAT THE TREATMENT TIME OF A TRAILING PORTION OF SAID SAMPLE ENTERING SAID SECOND CONDUIT PORTION IS LESS THAN THE TREATMENT TIME OF A LEADING PORTION OF SAID SAMPLE IN SAID SECOND CONDUIT PORTION;

    AND ANALYZING THE SAMPLE AT A STATION ON THE REVERSAL OF THE FLOW IN SAID SECOND CONDUIT.

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