| abstract |
ANCE PORTION OF THE SECOND CONDUIT AT A SUBSTANTIALLY CONSTANT TEMPERATURE FOR PRECLUDING VARIATIONS IN THE RESISTANCE THEREOF AND IN THE VISCOSITY OF THE FLUID PASSING THROUGH IT, SO THAT THE RATE OF FLOW ALONG THE ANALYTICAL CONDUIT IS MAINTAINED SUBSTANTIALLY CONSTANT. A PUMP SYSTEM FOR SAMPLE ANALYSIS APPARATUS INCLUDING AN ANALYTICAL CONDUIT OF RELATIVELY LOW-FLUID-FLOW RESISTANCE AND WHICH IS SUBJECT TO VARIATIONS IN RESISTANCE AND HAVING AN END COUPLED TO EITHER END OF A SECOND CONDUIT TO EITHER RECEIVE FROM OR SUPPLY TO THE ANALYTICAL CONDUIT A FLUID CAUSED TO FLOW THROUGH BOTH CONDUITS. THE SECOND CONDUIT HAS A RELATIVELY HIGH RESISTANCE TO FLUID FLOW, AND TEMPERATURE CONTROL IS PROVIDED FOR MAINTAINING THE HIGH RESIST- |