Apparatus for electrochemical fluid analysis

Claim 1

APPARATUS FOR CONTINUOUSLY MEASURING THE CONCENTRATION OF A SELECTED CONSTITUENT IN A SAMPLE FLUID MIXTURE STREAM WHICH COMPRISES, CELLS BLOCK MEANS HAVING A PACKED SCRUBBER SECTION FOR CONTACTING STREAMS OF REAGENT ELECTROLYTE SOULATION AND SAID SAMPLE FLUID MIXTURE TO EFFECT A CHANGE IN IRONIC CONNTACT OF SAID REAGENT ELECTROLYTE SOLUTION PROPORTIONAL TO THE CONCENTRATION OF SAID SELECTED CONSTITUENT IN THE SAMPLE FLUID MIXTURE; CONDUIT MEANS FOR VENTING FROM SAID SCRUBBER SECTION GASEOUS CONSITUENTS OF SAID SAMPLE FLUID STREAM OTHER THAN SAID SELECTED CONSTITUENT; A PAIR OF SOLID ELECTRODE HAVING OPPOSED SURFACE IN SPACED, SUBSTANTIALLY PARALLEL, RELATIONSHIP BEING OF SUCH COMPOSITION THAT THEY REACT WITH NEITHER THE ELECTROLYTE NOR THE SAMPLE FLUID; CONDUIT MEANS FOR PASSING SAID STREAM OF AS-TREATED REAGENT ELECTROLYTE SOULATION FROM SAID SCRUBBER SECTION THROUGH AND IN CONTACT WITH ONE OF SAID ELECTRODES, SIAD ELECTRODE BEING POROUS; CONDUIT MEANS FOR PASSING A STREAM OF UNTREARED REAGENT ELECTROLYTE SOULATION BETWEEN SAID ELECTRODES AND IN CONTACT WITH THE OTHER OF SAID ELECTRODE SO AS TO FORM A LIQUID INTERFACED BETWEEN SAID ELECTRODES PROVIDED A DYNAMIC CONCENTRATION CELL; AND ELECTRIC CIRCUIT INDICATING MEANS, CONNECTED TO SAID ELECTRODES, RESPONSIVE TO THE POTENTIAL DEVELOPMENT ACROSS SAID ELECTRODES, AND CALIBRATED TO INDICATE THE CHANGE IN CONCENTRATION OF SAID SELECTED CONSTITUENT OF SAID SAMPLE FLUID.