Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1990-10-09
1991-05-28
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
422 58, 422 73, 422101, 422102, 436178, 356244, 356246, 350536, 7386472, G01N 2103
Patent
active
050193511
ABSTRACT:
A test element for agglutination tests, comprising a receiving and mixing region for a sample and reagents and a reaction capillary having an upstream region which produces a capillary effect causing the sample-reagents mixture to flow at a speed which is greater than along a downstream region of the reaction capillary. An intermediate region can be provided between the upstream capillary region and the downstream region. The downstream end of capillary is connected to a collecting region. The test element is characterized by continuous supply and movement of the sample-reagents mixture through the reaction capillary. More particularly the time needed for a sample-reagents mixture to flow from the upstream end to the downstream end of the reaction capillary fluctuates only slightly between tests. The test element is particularly suitable for detecting drugs of abuse such as cocaine metabolites in human body fluids.
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Blue Print D-682 (Feb. 9, 1987) (confidential information deleted).
Gould George M.
Hoffman-La Roche Inc.
Johnston George W.
Kummert Lynn M.
Leon Bernard S.
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