COMPONENT SET FOR THE PRODUCTION OF READY-FOR-USE CHLORINE DIOXIDE SENSOR

Abstract

To provide a component set for the production of a ready-for-use chlorine dioxide sensor which affords a chlorine dioxide sensor containing a strongly acid electrolyte which has exactly the low pH-value in the range of 1.1 to 1.5, that is desired for use in the chlorine dioxide sensor, according to the invention there is proposed a component set characterised in that it includes an amperometric measuring cell having an electrolyte chamber and a working electrode arranged therein and a reference electrode arranged therein, and at least one container containing a liquid standard electrolyte and at least one container containing a solid acid additive.

Claims

1. A component set (1) for the production of a ready-for-use chlorine dioxide sensor, characterised in that the component set includes the following components: a) an amperometric measuring cell (2) having an electrolyte chamber (4) and a working electrode (3) arranged in the electrolyte chamber (4) and a reference electrode (5) arranged in the electrolyte chamber (4), b) at least one container (6) containing a liquid standard electrolyte, and c) at least one container (7) which contains a solid acid additive.

2. A component set according to claim 1 characterised in that the stoichiometric amount of standard electrolyte in the at least one container which contains a standard electrolyte and the stoichiometric amount of acid additive in the at least one container which contains an acid additive are so matched to each other that either: a) a mixture of the total stoichiometric amount of the acid additive contained in the container with the total stoichiometric amount of the standard electrolyte contained in the container gives a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or b) a mixture of a whole-numbered volume or mass proportion of the acid additive contained in the container with the total stoichiometric amount of the standard electrode contained in the container gives a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or c) a mixture of the total stoichiometric amount of the acid additive contained in the container with a whole-numbered volume or mass proportion of the standard electrolyte contained in the container gives a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5.

3. A component set according to claim 1 characterised in that the component set includes 2, 3, 4 or 5 containers which contain the acid additive in an amount with which the total stoichiometric amount of the standard electrolyte contained in the at least one standard electrolyte container or a whole-numbered volume or mass proportion of the standard electrolyte contained in the at least one standard electrolyte container can be converted to a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5.

4. A component set according to claim 1 characterised in that the standard electrolyte is an aqueous solution of alkali metal chloride.

5. A component set according to claim 1 characterised in that the acid additive is an alkali metal hydrogen sulphate.

6. A component set according to claim 1 characterised in that it additionally includes a dosage instruction (8) which either a) contains the instruction that the total volume or the total mass of acid additive in the at least one container containing said acid additive must be mixed with the total volume or the total mass of the standard electrolyte in the at least one container containing said standard electrolyte to obtain a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or b) contains the instruction that a whole-numbered volume or mass proportion of the acid additive from the at least one container containing said acid additive must be mixed with the total volume or the total mass of the standard electrolyte in the at least one container containing said standard electrolyte in order to obtain a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or c) contains the instruction that the total volume or the total mass of the acid additive from the at least one container containing said acid additive must be mixed with a whole-numbered volume or mass proportion of the standard electrolyte in the at least one container containing said standard electrolyte in order to obtain a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5.

7. A component set according to claim 1 characterised in that the component set is arranged in a transport packaging (9) which is closable on all sides.

8. A refill set for a component set according to claim 1 characterised in that the refill set includes at least one container which contains a liquid standard electrolyte and at least one container which contains a solid acid additive, wherein the stoichiometric amount of standard electrolyte in the at least one container which contains a standard electrolyte and the stoichiometric amount of acid additive in the at least one container which contains an acid additive are so matched to each other that either: a) a mixture of the total stoichiometric amount of the acid additive contained in the container with the total stoichiometric amount of the standard electrolyte contained in the container gives a strongly acid electrolyte with a pH-value in the range of 1:1 to 1:5, or b) a mixture of a whole-numbered volume or mass proportion of the acid additive contained in the container with the total stoichiometric amount of the standard electrode contained in the container gives a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or c) a mixture of the total stoichiometric amount of the acid additive contained in the container with a whole-numbered volume or mass proportion of the standard electrolyte contained in the container gives a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5.

9. A process for the production of a chlorine dioxide sensor characterised in that the chlorine dioxide sensor is created from the component set according to claim 1.

10. A process according to claim 9 wherein at least a part of the standard electrolyte contained in the at least one container is mixed with at least a part of the acid additive contained in the at least one container to produce a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5.

11. A process according to claim 9 characterised in that in accordance with a dosage instruction (8) which either a) contains the instruction that the total volume or the total mass of acid additive in the at least one container containing said acid additive must be mixed with the total volume or the total mass of the standard electrolyte in the at least one container containing said standard electrolyte to obtain a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or b) contains the instruction that a whole-numbered volume or mass proportion of the acid additive from the at least one container containing said acid additive must be mixed with the total volume or the total mass of the standard electrolyte in the at least one container containing said standard electrolyte in order to obtain a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5, or c) contains the instruction that the total volume or the total mass of the acid additive from the at least one container containing said acid additive must be mixed with a whole-numbered volume or mass proportion of the standard electrolyte in the at least one container containing said standard electrolyte in order to obtain a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5; a strongly acid electrolyte with a pH-value in the range of 1.1 to 1.5 is produced.

12. A process according to claim 9 characterised in that a whole-numbered quantitative proportion of the strongly acid electrolyte produced or the total amount of the strongly acid electrolyte produced is introduced into the electrolyte chamber of the amperometric measuring cell.

13. A process according to claim 12 characterised in that the chlorine dioxide sensor is calibrated within at most 24 hours after the strongly acid electrolyte was produced and introduced into the electrolyte chamber of the amperometric measuring cell.

Description

[0050] FIG. 1 shows a given embodiment of the component set according to the invention with transport packaging.

[0051] FIG. 1 shows a specific embodiment of the present invention in which the component set 1 according to the invention is arranged in a transport packaging 9. In the embodiment illustrated here the component set according to the invention includes an amperometric measuring cell 2, a container 6 for the standard electrolyte, a container 7 for the acid additive, a dosage instruction 8 and a cable 10 for connection of the ready-for-use chlorine dioxide sensor by way of the connection 13 to a measuring fitting (not shown). In the embodiment shown here the component set 1 is arranged in a transport packaging 9 which is closed on all sides.

[0052] The amperometric measuring cell 2 illustrated here has an electrolyte chamber 4 and a working electrode 3 arranged therein and a reference electrode 5 arranged therein. Disposed at the lower end is a diaphragm 11, by way of which analyte can penetrate into the electrolyte chamber of the amperometric measuring cell to come into contact there with the working electrode 3. Disposed at the upper end is the connection 12, by way of which the ready-for-use chlorine dioxide sensor can be connected to a measuring fitting (not shown) with the cable 10.

[0053] The containers 6 and 7 illustrated here are screw cover vessels of polyethylene (PE).

[0054] The dosage instruction 8 illustrated here is a leaflet of paper, containing in text form the instruction in accordance with which the strongly acid electrolyte with a pH-value in the range of 1.3+/0.15 can be produced from the standard electrolyte contained in the container 6 and the solid acid additive contained in the container 7.