One-way measuring element for analyzing gaseous or liquid samples
First Claim
1. One-way measuring element, comprising a measuring channel with at least one electrochemical or optical sensor located therein, a first opening on one end of said measuring channel for connecting said measuring element to an analyzer, a second opening on the other end of said measuring channel for connecting said measuring element to a sample-taking part, and a first sealing element for said first opening and a second sealing element for said second opening, wherein a buffer tank is located in said measuring element in the area of said first opening, wherein a collecting tank is located in said measuring element in the area of said second opening, wherein said first sealing element has at least three positions:
- a first position for closing said measuring channel, a second position for connecting said measuring channel to said first opening, and a third position for connecting said measuring channel with said buffer tank, and wherein said second sealing element has at least three positions, a first position for closing said measuring channel, a second position for connecting said measuring channel to said collecting tank, and a third position for connecting said measuring channel to said second opening.
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Abstract
Method for analyzing gaseous or liquid samples, utilizing a one-way measuring element with a measuring channel containing at least one optical or electrochemical sensor and being provided with sealing elements on either end. In order to obtain accurate measurements in a simple manner the proposal is put forward that for measuring purposes a storage medium in the measuring channel be replaced by a separating medium which should then be replaced by the sample. Sample and storage medium will remain in the measuring element when it is discarded.
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Citations
14 Claims
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1. One-way measuring element, comprising a measuring channel with at least one electrochemical or optical sensor located therein, a first opening on one end of said measuring channel for connecting said measuring element to an analyzer, a second opening on the other end of said measuring channel for connecting said measuring element to a sample-taking part, and a first sealing element for said first opening and a second sealing element for said second opening, wherein a buffer tank is located in said measuring element in the area of said first opening, wherein a collecting tank is located in said measuring element in the area of said second opening, wherein said first sealing element has at least three positions:
- a first position for closing said measuring channel, a second position for connecting said measuring channel to said first opening, and a third position for connecting said measuring channel with said buffer tank, and wherein said second sealing element has at least three positions, a first position for closing said measuring channel, a second position for connecting said measuring channel to said collecting tank, and a third position for connecting said measuring channel to said second opening.
- View Dependent Claims (2, 3, 7, 8, 9, 10, 11, 12, 13, 14)
- 4. One-way measuring element, comprising a measuring channel with at least one electrochemical or optical sensor located therein, a first opening on one end of said measuring channel for connecting said measuring element to an analyzer, a second opening on the other end of said measuring channel for connecting said measuring element to a sample-taking part, and a first sealing element for said first opening and a second sealing element for said second opening, said first and second sealing elements being configured as sliding elements that slide in bores in said measuring element so as to move essentially at right angles to a longitudinal axis of said measuring element, wherein a collecting tank is located in said measuring element in the area of said second opening, wherein said first sealing element has at least two positions, a first position for closing said measuring channel and a second position for connecting said measuring channel to said first opening, and wherein said second sealing element has at least three positions, a first position for closing said measuring channel, a second position for connecting said measuring channel to said collecting tank, and a third position for connecting said measuring channel to said second opening.
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6. One-way measuring element, comprising a measuring channel with at least one electrochemical or optical sensor located therein, a first opening on one end of said measuring channel for connecting said measuring element to an analyzer, a second opening on the other end of said measuring channel for connecting said measuring element to a sample-taking part, and a first sealing element for said first opening and a second sealing element for said second opening, said first and second sealing elements being configured as rotary valves which are rotatable in bores in said measuring element but cannot be shifted axially, wherein a buffer tank is located in said measuring element in the area of said first sealing wherein a collecting tank is located in said measuring element in the area of said second opening, wherein said first sealing element has at least three positions:
- a first position for closing said measuring channel, a second position for connecting said measuring channel to said first opening, and a third position for connecting said measuring channel to said buffer tank; and
wherein said second sealing element has at least three positions;
a first position for closing said measuring channel, a second position for connecting said measuring channel to said collecting tank, and a third position for connecting said measuring channel to said second opening.
- a first position for closing said measuring channel, a second position for connecting said measuring channel to said first opening, and a third position for connecting said measuring channel to said buffer tank; and
Specification