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Device for determination of tear constituents
A device for determination of a tear constituent, including an absorbent tear strip wick and an electrochemical strip connected to one end of the wick. The...
Process for producing nanometer-size structures on surfaces using
electron beam induced chemistry through...
The process of using electron beam induced stimulated desorption chemistry to produce structures of nanometer order size on surfaces. By passivating a...
Process for the production of polyurethane foams
A process for the production of polyurethane foams by reacting a reaction mixture consisting essentially of a) a polyisocyanate component, with b) a polyol component...
Organosilylalkyl or organosilylalkenyl compounds, process for preparing
them and their use in...
The novel silylalkyl or silylalkenyl compounds correspond to the general formula (I) ##STR1## Here the symbols A.sup.1, A.sup.2, A.sup.3 denote aromatic or ...
Preparation of 1H pyrazolo [3,2-c]-S-triazole compounds
Process for the formation of 1-H-pyrazolo[3,2-C]-1,2-4-triazoles useful in photographic chemistry as magenta couplers. The products have chlorine or bromine...
Formed, polymeric transition-metal complex catalysts with organosiloxane
Formed spherical polymeric complexes of metals of the 8th subgroup of the periodic system with ligands of an organosiloxane copolycondensate optionally...
Chromogenic method of detecting endoproteases
Compounds of the formula I ##STR1## in which X denotes a hydrogen atom, a group which irreversibly masks the terminal amino group, or a protecting group...
Quinolones, process for their preparation and pharmaceutical
compositions containing same
The invention concerns organic chemistry and, more precisely, therapeutic chemistry. It describes specifically novel 6-fluoro 7-piperdinyl quinolone-3 carboxylic...
Multilayer test device having fusion bonding attachment layer
A unitized multilayer dry reagent analytical chemistry test structure and device and method of fabricating such device is described. The device includes two or...
Calibration solutions useful for analyses of biological fluids and
methods employing same
Novel calibration solutions are provided which are useful, for example, with sensor assemblies used for analysis of CO.sub.2, especially in combination infusion...
Normalization technique for photon-counting luminometer
A normalization system for multi-photodetector single photon counting luminescent measuring systems and a standard for use in the same. The method comprises...
Intermediates for cephalosporins with sulfur containing oxyimino side
Antibacterial compounds of the formula ##STR1## wherein R is a mononuclear carbocyclic aromatic group, a 5-membered aromatic heterocyclic group which...
Tube having regions of different surface chemistry and method therefor
In a method to modify the chemistry of a portion of the surface of an article, the surface is placed adjacent an electrode in a plasma chamber, the distance to...
Surface chemistry control for selective fossil resin flotation
A froth flotation method is disclosed for separating fine particles of fossil resin from by use of frothing reagents which include an aliphatic organic compound...
Microwave-heated film processing apparatus
A compact developing apparatus that can quickly modify processing chemistries is disclosed. A web coated with a photograph emulsion or other photosensitive...
Formylation process for aromatic aldehydes
A novel two-step reaction process for preparing 5-substituted-2-methoxybenzaldehyde compounds is disclosed wherein the substituent group is either isopropyl or...
Hydrogen-water vapor pretreatment of Fe-Cr-Al alloys
A method is provided for forming a precursor layer of aluminum oxide on a cold-rolled ferritic stainless steel substrate having an aluminum content of less than...
Salt bridge for analytical chemistry system
A salt bridge for a flow cell which includes a porous bridge element between fluid flow in the flow cell and in an internal reference fluid flow. The bridge...
Dentifrice-compatible silica particulates
Novel silica particulates especially adapted for formulation to dentifrice compositions exhibit unique physical and chemical properties. In one embodiment,...
Meter verification method and apparatus
A method and apparatus for verifying the operating accuracy of an instrument (10) for detecting the concentration of a medically significant component of a body...
Consumable charge box and assembly for recharging material into a
furnace or vessel for producing molten metal
Containers formed of consumable materials of compatible chemistry with the remelting of molten metal are disclosed, the individual containers being capable of...
Chlorine dioxide monitor based on ion mobility spectrometry with
selective dopant chemistry
An improved ion mobility spectrometer (IMS) and method for operating the same which enables analysis of chlorine dioxide in a mixture of gases which also...
Medical diagnostic system
Hand-held shirt-pocket portable instrument for quantitative measurement of glucose or analysis in biological fluids. The system accepts a disposable diagnostic...
Blood glucose reflectance meter including a null prompting means and a
device for providing a constant...
A portable blood chemistry monitoring meter that employs an analog circuit in conjunction with a manually adjustable potentiometer to locate a null position that...
Acidic derivatives of homocysteine thiolactone
Homocysteine thiolactone derivatives in which the nitrogen is acylated with groups containing acidic functionalities have been synthesized. These include the...
Nucleotide sequence determination employing matched dideoxynucleotide
A method of positively deciphering a DNA sequence of a sample by comparing data of two electropherograms obtained from separate electrophoresis of products from...
Process for fabricating a battery
Batteries based on lead chemistry, e.g., lead-acid batteries, are substantially improved through the use of a particular positive material. This material is...
A generally spherical bead on the floor of a compartment is prevented from lying in the path of insertion of an elongated member into the compartment when the...
Method for measuring glucose
This invention provides an electrochemical sensor capable of measuring the glucose level of body fluids, especially blood. More particularly, this invention also...
Monomolecular resist and process for beamwriter
A process for the manufacture of submicron circuits uses a submicron beam writer having multiple beams to Inscribe simultaneously a plurality of metal patterns...
Reversible direction capsule chemistry sample liquid analysis system and
Sample liquid analysis apparatus and method for the formation and supply to a conduit of a stream of successive sample liquid test packages, and the repeated...
Electroplating test cell
Hull cell has been widely used in the plating industry for many years to evaluate the plating chemistry as a function of current densities. However, because of...
Bonding base and method of making the same for a plastic orthodontic
A bonding base and method of making the base for a plastic orthodontic bracket to provide a mechanical lock that inhibits both shear and tensile forces when...
Selective monohydrosilation of vinyl and ethynyl functional norbornenes
and curable products produced thereby
A process comprising the steps of: 1) reacting a norbornene compound of the formula: ##STR1## where R is H or methyl, R.sup.1 is a direct bond or --C(.dbd.O)O--...
Serum separating apparatus
This invention relates to an apparatus used in a centrifugal separating step for sample preparation in the field of clinical chemistry. Especially, the invention...
Automated system for polynucleotide synthesis and purification
A method and system for polynucleotide synthesis are provided which employ solid phase synthesis on a nonswellable porous polystyrene support by phosphoramidite...
Composition for treating depression with (S- or O-heteroaryl)alkyl amines
The invention concerns compounds having formula: ##STR1## or a salt thereof, wherein E represents hydrogen, lower alkyl or a group Ar.sup.1 --A.sup.1 --; Ar...
Sample pad assay initiation device
A self-contained assay device is provided, where an analyte may be detected or be quantitated by measuring the distance of a detectable signal from a ...
Autoclave corrosion test for zirconium alloys
An improved short-term autoclave (10) test for ex-reactor evaluation of in-reactor corrosion resistance of zirconium alloy members (16) for use in pressurized...
Nonaqueous polymeric reagent compositions and applications thereof
Non-aqueous, polymeric reagent film compositions for use with analytical test devices of the dry chemistry type are described. The film compositions are prepared...
Multicomponent system for a refinish coating composition and a method
for applying the same
A multipackage system for providing a refinish coating composition and a method for applying the same onto a substrate. The method comprises separately...
Process for making pepper kraut
The previously stated specification is an indepth description of my invention. This product offers an appeal by its natural color and ingredients. There are...
Surface modified blood collection tubes
A glass or plastic article, preferably a blood collection tube, has two or more surface regions of different surface chemistry. One region is substantially...
Normalizing analyzer systems to a standard analyzer
There is described a method of calibrating an analyzer in the field, using parameters designed for a "standard" analyzer that may be different from the field...
A microelectrode array for use in electroanalytical chemistry in measuring the electrical characteristics of a solution. A microdisk electrode array is formed by...
Whisker reinforced composites for cutting tools with improved performance
The properties of silicon carbide whisker reinforced aluminum oxide, at present used for cutting tools when machining nickel based alloys, are in a very complex...
Circular dichroism and spectrophotometric absorption detection methods
Spectrophotometric methods, including the use of circular dichroism, spectrophotometric absorption detection fluorescence and derivative spectrophotometric...
Positive photoresist compositions
The present invention provides an aqueous-processable, positive-working photoresist composition having improved photospeed and aqueous development rate without...
Amplifier molecules for diagnosis and therapy derived from
Disclosed are amplifier molecules: various organic compounds having branched structures terminating with amine groups to which pharmacologically active groups...
Spray forming polymer membranes, coatings and films
A method of forming a polymer film having controlled physical and chemical characteristics, wherein a plume of nebulized droplets of a polymer or polymer...