Apparatus for analysis of liquids

Claim 1

AN APPARATUS FOR MEASURING CONCENTRATION OF AN ELECTROACTIVE SPECIES SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, OXYGEN IODINE HYDRAZING IN AN UNTREATED SAMPLE COMPRISING: ELECTROCHEMICAL SENSING MEANS INCLUDING A CELL AND FIRST AND SECOND ELECTRODES BETWEEN WHICH AN ELECTRICAL CURRENT WILL FLOW WHEN SAID UNTREATED SAMPLE CONTAINING ANY OF SAID ELECTRO-ACTIVE SPECIES IS INTRODUCED INTO SAID CELL TO PROVIDE ELECTROLYTIC CONDUCTION BETWEEN SAID FIRST AND SECOND ELECTRODES, SAID ELECTROLYTIC CONDUCTION OCCURRING IN THE ABSENCE OF ANY OTHER ELECTROLYTE IN CONTACT WITH EITHER OF SAID ELECTRODES, INPUT MEANS FOR INTRODUCING A GIVEN AMOUNT OF SAID UNTREATED SAMPLE INTO SAID CELL, SAID SAMPLE BEING SUBSTANTIALLY FREE OF ANY REAGENT THEREIN WHICH WOULD TEND TO ALTER SAID ELECTROACTIVE SPECIES IN SAID SAMPLE, MEASURING MEANS FOR INTEGRATION OVER TIME OF SAID ELECTRICAL CURRENT WHEN SAID UNTREATED SAMPLE IS INTRODUCED INTO SAID CELL, AND

Claim 2

AN APPARATUS FOR MEASURING CONCENTRATION OF AN ELECTROACTIVE SPECIES SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE, OXYGEN IODINE HYDRAZING IN AN UNTREATED SAMPLE COMPRISING: ELECTROCHEMICAL SENSING MEANS INCLUDING A CELL AND FIRST AND SECOND ELECTRODES BETWEEN WHICH AN ELECTRICAL CURRENT WILL FLOW WHEN SAID UNTREATED SAMPLE CONTAINING ANY OF SAID ELECTRO-ACTIVE SPECIES IS INTRODUCED INTO SAID CELL TO PROVIDE ELECTROLYTIC CONDUCTION BETWEEN SAID FIRST AND SECOND ELECTRODES, SAID ELECTROLYTIC CONDUCTION OCCURRING IN THE ABSENCE OF ANY OTHER ELECTROLYTE IN CONTACT WITH EITHER OF SAID ELECTRODES, INPUT MEANS FOR INTRODUCING A GIVEN AMOUNT OF SAID UNTREATED SAMPLE INTO SAID CELL, SAID SAMPLE BEING SUBSTANTIALLY FREE OF ANY REAGENT THEREIN WHICH WOULD TEND TO ALTER SAID ELECTROACTIVE SPECIES IN SAID SAMPLE, MEASURING MEANS FOR INTEGRATION OVER TIME OF SAID ELECTRICAL CURRENT WHEN SAID UNTREATED SAMPLE IS INTRODUCED INTO SAID CELL, AND

Claim 9

An apparatus for measuring the concentration of an electroactive species selected from the group consisting of chlorine, bromine, oxygen, iodine and hydrazine in a sample, comprising: electrochemical sensing means including a cell and first and second electrodes between which an electrical current will flow when said sample containing any of said electroactive species is introduced into said cell to provide electrolytic conduction between said first and second electrodes, input means integral with said cell for introducing a given amount of said sample into said cell, said input means being comprised of a mechanical member capable of motion which introduces said sample into said cell, measuring means for integrating said electrical current over time when said given amount of sample is introduced into said cell, said measuring means being activated in response to a trigger input dependent on the said given amount of said sample being introduced into said cell, and triggering means responsive to the movement of said mechanical member in said input means for providing said trigger input to said measuring means when said given amount of sample is introduced into said cell.

Claim 10

An apparatus for measuring the concentration of an electroactive species selected from the group consisting of chlorine, bromine, oxygen, iodine and hydrazine in a sample, comprising: electrochemical sensing means including a cell and first and second electrodes between which an electrical current will flow when said sample containing any of said electroactive species is introduced into said cell to provide electrolytic conduction between said first and second electrodes, input means integral with said cell for introducing a given amount of said sample into said cell, said input means being comprised of a mechanical member capable of motion which introduces said sample into said cell, measuring means for integrating said electrical current over time when said given amount of sample is introduced into said cell, said measuring means being activated in response to a trigger input dependent on the said given amount of said sample being introduced into said cell, and triggering means responsive to the movement of said mechanical member in said input means for providing said trigger input to said measuring means when said given amount of sample is introduced into said cell.