Chemistry: analytical and immunological testing – Automated chemical analysis – With a continuously flowing sample or carrier stream
Patent
1997-12-11
1999-07-27
Le, Long V.
Chemistry: analytical and immunological testing
Automated chemical analysis
With a continuously flowing sample or carrier stream
436174, 436179, 436180, 422 681, 422 81, 422103, G01N 3510
Patent
active
059289538
ABSTRACT:
In connection with a method for determination of the content of at least some substance which is solved in a liquid, is used a measuring device, which is arranged to detect the character of a physical magnitude of the liquid, which physical magnitude is related to the content of the present substance, when the liquid has been treated with an adequate reagent. A volume of the reagent is measured, which volume corresponds to a defined length of a line, in which the reagent is transported, whereafter the measured volume is incorporated in a closed loop (1) in which the measuring device (26) is included, whereby the reagent volume which is incorporated in the measuring loop initially is essentially unmixed with the sample liquid and forms a section (X) in the line of the loop, which for the rest is filled with sample liquid and whereby the length of said section corresponds to or is in direct proportion to said length of the line in which the reagent is transported before it is incorporated into the loop. The sample liquid and the reagent is, thereafter, transported around in the measuring loop by means of a pump (25) which is included in the measuring loop, until the sample liquid and the reagent is thoroughly mixed in the measuring loop, whereafter the measuring device registers the content of the compound in question.
REFERENCES:
patent: 3954411 (1976-05-01), Snyder
patent: 4022575 (1977-05-01), Hansen et al.
patent: 4036062 (1977-07-01), Cruzan
patent: 4101275 (1978-07-01), Taguchi et al.
patent: 4231990 (1980-11-01), Jottier
patent: 4314824 (1982-02-01), Hansen et al.
patent: 4424276 (1984-01-01), Clark et al.
patent: 4645647 (1987-02-01), Yoshida et al.
patent: 4865992 (1989-09-01), Hach et al.
patent: 4873057 (1989-10-01), Robertson et al.
patent: 5055260 (1991-10-01), Roberge et al.
patent: 5139956 (1992-08-01), Schick et al.
patent: 5192509 (1993-03-01), Surjaatmadja et al.
patent: 5230863 (1993-07-01), Salpeter
patent: 5240681 (1993-08-01), O'Lear et al.
patent: 5393492 (1995-02-01), Di Martino et al.
patent: 5407832 (1995-04-01), Hayashibe et al.
patent: 5447692 (1995-09-01), Keenan et al.
patent: 5679575 (1997-10-01), Kubota et al.
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