Matches 151 - 200 out of 265 < 1 2 3 4 5 6 >


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5332548 Analytical device and method of using same  
The invention provides an analytical device, and method of using same, for detecting a gaseous or volatile analyte and adaptable to be applied directly to the surface of a solid material from...
5302515 Chemotactic test apparatus and method  
The present invention is a single site or multiple site chemotaxis test apparatus or chemotaxis chamber for measuring the effect of concentration gradients of diffusible chemicals upon the...
5302346 Test carrier for the determination of ions  
A test carrier for the determination of ions containing a test layer which has a liquid-resistant, organic phase which contains a hydrophobic polymer in a homogeneous mixture with a hydrophobic,...
5290514 Dry analysis element having a constant blank value and process for preparing the same  
A dry analysis element which gives a calibration curve having a constant blank value for every lot and can be used without the need of correction of the internal calibration curve memorized in an...
5281393 Multilayered device containing a polymer-copper complex to control interference of biological substances in colorimetric test systems  
A layered device suitable for use in the analysis of blood samples which includes a first layer of a matrix material having dispersed therein a complex of copper and a polymer containing multiple...
5266460 Method of preparing immunological analytical element  
A method of preparing a dry-type analytical element for immunoassay having at least one water-permeable porous layer and containing a labeled antigen and an antibody to said labeled antigen and to...
5244631 Testing device  
A testing device includes a platelike stick and a detecting function part deposited on said stick. The stick is composed of a water-disintegrable layer, a water-soluble layer superposed on at...
5232663 Test carrier for analytical determination having a highly effective fixing layer for flow-through bound/free separation  
Test carrier for the analytical determination of a constituent of a sample fluid by a specific binding reaction between two binding partners having biological affinity. A plurality of test layers...
5217874 Fecal occult blood test product with positive and negative controls  
A test sheet for the determination of the presence of a substance having peroxidase-like activity in a throw-in-the-bowl fecal occult blood test, includes a specimen test area and a positive...
5204062 Bowie-dick test device  
A permanent record test device tests the efficiency of a steam sterilizer apparatus to create a vacuum satisfying the Bowie-Dick test procedure. A sheet of selectively porous material such as one...
5200147 Compact prevacuum steam sterilizer test pack  
A prevacuum steam sterilization test pack, for testing the efficiency of the vacuum system of a steam sterilizer apparatus to create a vacuum, comprises a bundle of layers and a porous overwrap...
5192693 Method of using chemical analysis slide  
A method of using a chemical analysis slide which includes a slide frame and a sheet-like or film-like chemical analysis element for colorimetric determination of a specific component in an...
5183742 Test device for detecting glucose, protein urobilinogen, and/or occult blood in body fluids and/or determining the PH thereof  
A test device having the following meritorious effects is obtained in accordance with the present invention by using at least one composition selected from the group consisting of ink compositions...
5178831 Device for testing body fluids  
A device for testing body fluids includes (a) a test reagent layer (1) formed on a substrate (5) and containing a test reagent, the tone of which changes according to the content of a...
5171528 Device for differentiating the source of occult gastro-intestinal bleeding  
The specification discloses a fecal occult blood test device capable of determining whether the blood found during the test originated in the upper or lower gastrointestinal track. A fecal sample...
5147805 Method and kit for determining the functional activity of protein S in human plasma  
To determine the biological activity of protein S in a sample of human plasma, the suitably diluted sample is added to a substrate formed from plasma deficient in protein S, in which protein C is...
5141731 Process for the generation of peroxyacids  
A process and an apparatus are described for the production of peroxyacids from concentrated solutions of hydrogen peroxide and an oxyacid. The total amount of concentrated hydrogen peroxide is...
5128171 Method of making a test strip having a dialyzed polymer layer  
A test strip for the detection of a predetermined substance in a fluid is described. This test strip is stable to storage and accelerated keeping test conditions and comprises a support having...
5118472 Analytical element for analysis of whole blood  
In an integral multilayer analytical element which comprises a first nonfibrous porous layer, a second nonfibrous porous layer, and a fibrous porous layer superposed in this order to a...
5093081 Dry-type analytical element for immunoassay  
A dry-type analytical element for immunoassay having at least one water-permeable layer for measuring a ligand in a sample according to enzyme immunoassay, which comprises, (A) a water-insoluble...
5084395 Reducible indicator compositions containing pyrogallol derivatives  
The invention relates to a composition useful in determining an analyte in a sample. The composition contains an indicator system which forms a detectable signal in the presence of said analyte,...
5081040 Composition and kit for testing for occult blood in human and animal excretions, fluids, or tissue matrixes  
A diagnostic kit is disclosed for the detection of hemoglobin, myoglobin, ferritin, or the like substances having peroxidase-like activity in different mixtures of biological origin, such as fecal...
5053340 In vitro test for dermal toxic properties  
A membrane support, reagent and method determines, in vitro, skin irritation properties of individual compounds and/or mixtures is disclosed. The material to be tested is applied directly to the...
5023052 Element for analyzing body fluids  
A multi-layer analytical element for analyzing body fluids includes a light transmitting and water impermeable support having provided thereon a fist non-fibrous porous layer, a second non-fibrous...
4990457 Whole blood dry analysis element  
A dry analysis element for determination of a particular constituent in erythrocyte-containing blood, which comprises at least a water permeable porous spreading layer and a water permeable...
4987085 Blood filtering metering device  
Constructions are provided for removing interfering red blood cells from a blood sample and providing a measured amount of serum or plasma to a pad. The pad serves as a bridge for the transfer of...
4985204 Device for carrying out a heterogeneous reaction  
The present invention provides a device for carrying out a heterogeneous reaction for the determination of a component of a sample liquid on a first capillary action carrier present in a...
4981653 Self-indicating strip  
The present invention relates generally to an analytical reagent test strip for assaying fluid samples. The reagent test strip of this invention has a self-indicating format which provides...
4978612 Analytical element for determination of hydrogen peroxide and analytical method using the same  
Disclosed is an analytical element for determination of hydrogen peroxide, which comprises using an analytical element containing a substance having the action of peroxidation, a compound...
4966856 Analytical element and the analytical method using the element  
An analytical element and method using the element for measuring a specific component in a fluid sample such as blood, serum, plasma, urine, sweat etc. The fluid sample is applied on the element...
4965047 Analytical test strip  
An analytical test strip has a flexible blister (12) thermoformed in a sheet plastics member (22), and a diaphragm (34) which closes the blister to create a reservoir for holding a reagent and/or...
4952515 Method of detection using a test strip having a non particulate dialyzed polymer layer  
A method for the detection of a predetermined substance in a fluid is described. The method uses a test strip that is stable to storage and accelerated keeping test conditions. A sample of a fluid...
4935206 Method and apparatus for measuring the reaction of an indicator to the presence of various gases  
A process for the measuring of flat discoloration zones of an indicator substrate, which is transported into a measuring position and treated with a gaseous test medium there, is improved with...
H000791 Multilayer analytical element for quantitative analysis of bilirubin  
A multilayer analytical element for quantitative analysis of bilirubin in a liquid sample by a diazo method, which comprises a laminated structure consisting essentially of: (1) a porous reagent...
4870005 Multilayer analysis element  
A dry type multilayer analysis element comprises at least one porous medium layer comprising a membrane filter, to which an antigen (or antibody) is immobilized, and at least one reagent layer...
4868106 Analytical element and method for determining a component in a test sample  
Disclosed are an analytical element for determining a specific component A in a test sample, based on the specific reaction between said specific component A and a substance B capable of binding...
4851353 Method and test composition for determination of lipid peroxide  
A method for the determination of peroxide in a sample is disclosed which comprises reacting the peroxide with a chromogen represented by the general formula (I) or (II) ##STR1## wherein R1 and R3...
4832488 Method for correction of calibration curve in dry analytical process  
A method for correction of calibration curve in a dry analytical process for quantitative analysis of analyte in a liquid sample such as blood is disclosed. In the method, a calibration curve...
4822743 Method and cloth for detecting leaks in closed bodies  
A reusable indicating material for detecting leaks in sealed structures and other closed bodies comprises a fabric saturated with an indicator solution containing an acid-base indicator, a...
4820489 Test strips and a process for the production thereof  
A test strip has a reagent-containing film layer coatingly embedded at least preponderantly on and into only one side of a carrier layer made of a multifilar fabric or fleece.
4818491 Suntanning gauge  
A suntanning gauge is provided having a plurality of UV-light absorbing lenses of varying thicknesses affixed to a convenient-to-carry base. Under each lens is a fluorescent material which emits...
4814142 Test strip having a non-particulate dialyzed polymer layer  
A diagnostic test strip for the detection of a analyte in a test fluid. The test strip has a reagent layer on a support layer. The reagent layer contains an analyte detection system in a...
4808379 Device for obtaining stool samples and detecting occult blood  
The device is used in the same way as toilet tissue to obtain a stool sample for occult blood testing on a receptor sheet included in the device. The receptor sheet is preimpregnated with guaiac...
4804518 Device for occult blood testing  
The device consists of a base sheet of impermeable plastic such as vinyl, or the like, and a guaiac stool receptor sheet adhesively secured thereto. The base sheet is sufficiently larger than the...
4793489 Tamper resistant package and method for detecting tampering with a packaged product  
A tamper resistant package has an inaccessible aerobic atmosphere indicator in the form of an incandescent filament. Specifically, the package comprises a container having an access opening, a...
4786595 Analytical element for analysis of an analyte  
An analytical element for quantitative analysis of analyte contained in a body fluid or the like, which has at least one reagent layer comprising a reactive reagent and a binder, characterized in...
4731332 Method and test kit for determining the amount of polar substances in fat  
A composition and test kit for determining the amount of polar substances in fat are disclosd by employing a test solution which is immiscible with the fat in question, and which provides a...
4675160 Occult blood test monitor  
An in-the-bowl occult blood test is provided with a flushable matrix having a separate testing site which will indicate the presence of residual oxidizing compounds in the toilet.
4670402 Use of benzimidazole derivatives for the detection of blood and other peroxidatically active substances in body fluids and excretion products  
The invention relates to the use of a compound of the chemical formula: ##STR1## in which: R1 and R2 are the same or different and represent hydrogen, halogen, and a lower alkyl or alkoxy group...
4665038 Composition, method and test strip for examining urobilinogen  
A composition comprising a 9-fluorenone-2-diazonium salt, an acid or acidic salt which is solid at normal temperatures, and if necessary an anionic surface active agent can produce a vivid red...

Matches 151 - 200 out of 265 < 1 2 3 4 5 6 >