Method for analyzing gaseous or liquid samples and a one-way measuring element for use in such a method
First Claim
1. One-way measuring element comprising a measuring channel with at least one optical or electrochemical sensor located therein, a collecting tank provided in said measuring element, a first opening on a first end of said measuring channel for connecting said measuring element to an analyser, and a second opening on a second end of said measuring channel for connecting said measuring element to a sample-taking part, wherein one common sealing element is used for both of said first and second openings which has first, second and third positions, said first position of said sealing element closing said measuring channel on both of said first and second ends, said second position connecting said first end of said measuring channel to said first opening and said second end of said measuring channel to said collecting tank, and said third position of said sealing element connecting said first end of said measuring channel to a said collecting tank and said second end of said measuring channel to said second opening.
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Abstract
Method for analysing gaseous or liquid samples, utilising 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.
28 Citations
15 Claims
- 1. One-way measuring element comprising a measuring channel with at least one optical or electrochemical sensor located therein, a collecting tank provided in said measuring element, a first opening on a first end of said measuring channel for connecting said measuring element to an analyser, and a second opening on a second end of said measuring channel for connecting said measuring element to a sample-taking part, wherein one common sealing element is used for both of said first and second openings which has first, second and third positions, said first position of said sealing element closing said measuring channel on both of said first and second ends, said second position connecting said first end of said measuring channel to said first opening and said second end of said measuring channel to said collecting tank, and said third position of said sealing element connecting said first end of said measuring channel to a said collecting tank and said second end of said measuring channel to said second opening.
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15. One-way measuring element comprising a measuring channel with at least one optical or electrochemical sensor located therein, a collecting tank provided in said measuring element, a first opening on a first end of said measuring channel for connecting said measuring element to an analyser, and a second opening on a second end of said measuring channel for connecting said measuring element to a sample-taking part, wherein one common sealing element is used for both of said first and second openings which has at least first, second and third positions, said first position of said sealing element closing said measuring channel on both of said first and second ends, said second position connecting said first end of said measuring channel to said first opening and said second end of said measuring channel to said collecting tank, and said third position of said sealing element connecting said first end of said measuring channel to said collecting tank and said second end of said measuring channel to said second opening, and wherein said collecting tank has a vent.
Specification