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| Number | Title | Issue Date |
| 6482648 | Stable troponin preparation and the use thereof as a calibrator/control in immunoassays The present invention relates to methods for the production of a stable troponin preparation and its use as a calibrator and/or control in immunoassays. The formulation is prepared from mammalian, preferably bovine, heart tissue which provides a calibrato... | 11/19/2002 |
| 5322680 | Substituted 2-thiazolyl tetrazolium salt indicators 2-Thiazolyl tetrazolium salt compounds characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such as NADH. The reflectance plateau confers... | 06/21/1994 |
| 5300637 | 2-benzothiazolyl tetrazolium salt indicators 2-Benzothiazolyl tetrazolium salt compounds have been found to be characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such as NADH. The ... | 04/05/1994 |
| 5290536 | Phenyl substituted 2-thiazolyl tetrazolium salt indicators Phenyl substituted 2-thiazolyl tetrazolium salt compounds characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such as NADH. The reflecta... | 03/01/1994 |
| 5272093 | Reagent containment and delivery tray and method of use A high-precision liquid reagent delivery system is provided for convenient and efficient gravity flow delivery of substantially the entire volume of reagent contained within a sealed formed tray. The delivery system comprises a formed tray defining a curv... | 12/21/1993 |
| 5258311 | Lithium salts as red blood cell lysing and hemoglobin denaturing reagents Use of a lithium salt, particularly lithium thiocyanate, as an agent for lysing red blood cells and denaturing hemoglobin in the performance of an immunoassay to detect the relative amount of a hemoglobin derivative in a blood sample. The method is partic... | 11/02/1993 |
| 5183743 | Chromogenic dibenzoxazepinone and dibenzothiazepinone enzyme substrates Chromogenic enzyme substrate compounds comprising a dibenz[b,e] [1,4]oxazepinone or dibenzo[b,e] [1,4]thiazepinone nucleus having an enzyme-cleavable group such as a radical of a sugar, carboxylic acid, amino acid, peptide, phosphoric acid, or sulfuric ac... | 02/02/1993 |
| 5128267 | Naphthotriazolium salts Naphthotriazolium salts which are chromogenic indicators for reducing substrate, such as NADH or NADPH.... | 07/07/1992 |
| 5126275 | Analytical method using tetrazolium salt indicators having a reflectance plateau General classes of 2-thiazolyl tetrazolium salt compounds have been found to be characterized by a reflectance spectrum exhibiting an extended plateau above about 600-650 nm. Such compounds are useful as chromogenic indicators for reducing substances such... | 06/30/1992 |
| 5122602 | Chromogenic merocyanine enzyme substrates Chromogenic merocyanine enzyme substrate compounds of the general formula: ##STR1## where Y is an enzymatically-cleavable group such as a radical of a sugar, carboxylic acid, amino acid, peptide, phosphoric acid, or sulfuric acid; A and B represent r... | 06/16/1992 |
| 5104980 | Chromogenic dibenzoxazepinone and dibenzothiazepinone enzyme substrates Chromogenic enzyme substrate compounds comprising a dibenz[b,e][1,4]oxazepinone or dibenzo[b,e][1,4]thiazepinone nucleus having an enzyme-cleavable group such as a radical of a sugar, carboxylic acid, amino acid, peptide, phosphoric acid, or sulfuric acid... | 04/14/1992 |
| 5081044 | Detection of hydrogen peroxide with optical indicator chalcogen compounds Optical indicator chalcogen (selenide or sulfide) compounds responsive to oxidants, e.g., hydrogen peroxide, and a method for using such indicators. Upon oxidation the resulting intermediate undergoes spontaneous elimination of the chalcogen residue to yi... | 01/14/1992 |
