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7622305 |
Multiple acid solution characterization
Embodiments of techniques for determining the concentrations of one or more acid components of a multiple acid solution are presented herein.
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7569393 |
Analytical test cartridge; and, methods
An analytical test cartridge is provided. The analytical test cartridge can be used for medical analyses of liquid samples removed from a patient, for example blood. The analytical test cartridge...
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7351590 |
Methods and compositions for directed microwave chemistry
The present invention concerns a novel means by which specific chosen reactions can be accelerated through the use of a new type of artificial enzyme. The invention allows specific reactions to...
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7348182 |
Directed microwave chemistry
The present invention concerns a novel means by which chemical preparations can be made. Reactions can be accelerated on special chips using microwave energy. The chips contain materials that...
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7349760 |
System and method for sensing and controlling the concentration of a chemical agent in a solution
A system for measuring and controlling the concentration of a chemical agent in a solution has a reaction cell for receiving a sample, a titrant dropper for releasing one or more drops of titrant...
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7221448 |
Test cell for a noble gas polarizer
The invention relates to a sample cell with a glass body comprising a gas inlet and a gas outlet and at least one orifice, a plane glass window is fused into the orifice, the shape and size of the...
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7214537 |
Real-time component monitoring and replenishment system for multicomponent fluids
A multicomponent fluid composition monitoring and compositional control system, in which a component analysis is effected by titration or other analytical procedure, for one or more components of...
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7205153 |
Analytical reagent for acid copper sulfate solutions
Embodiments of the invention provide an analytical method and analytical reagent solutions for determining the concentration of electrolyte components, such as copper, acid and chloride...
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7153690 |
Real-time component monitoring and replenishment system for multicomponent fluids
A multicomponent fluid composition monitoring and compositional control system, in which a component analysis is effected by titration or other analytical procedure, for one or more components of...
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7141430 |
Microrespirometer and associated methods
A method for measuring an evolution rate of a gas from a sample includes equilibrating a sample with an alkaline solution and a pH indicator and permitting the alkaline solution to absorb formed...
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6890758 |
Measurement of complexing agent concentration in an electroless plating bath
The concentration of citrate complexing agent in an electroless cobalt or nickel plating bath is determined by titrating a sample of the electroless plating bath containing a small concentration of...
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6667178 |
Optimization of caustic usage
A method for determining the quantity of phenol extracted into an aqueous solution of an alkali metal hydroxide uses a measurement of the pH of the solution, from which the equivalents of phenol...
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6484556 |
Thin film detection during fluid aspiration
The accurate determination of the presence of a fluid in a container is determined by assessing the difference in various pressure readings relative to a threshold value. The method distinguishes...
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6475438 |
Field test apparatus for analysis of coolants and heat-exchange fluids
A test method and apparatus for determining the content of carboxylic acid-based corrosion inhibitors in a coolant or heat exchange fluid. The amount of acidic reagent added to the coolant or fluid...
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6413716 |
Method for detection of human parvovirus and reagent therefor
A method for detection of human parvovirus B19, comprising the steps of: (1) bringing a sample into contact with fixed P-antigen positive red cells in a medium at pH 5.6±0.6; and (2) determining...
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6372505 |
Process and apparatus for titrating
In a process for titrating substances by adding increments of a titrant in time intervals, the course of the reaction is monitored in its approach toward the end point (EP), and the addition of...
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6274384 |
Method for specific substance and molecule detection
A system for detecting a specific substance or analyte of interest is provided that includes one or more sensing units and an instrument for analyzing the sensing units. Each sensing unit...
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6110426 |
Methods for fabricating microarrays of biological samples
A method and apparatus for forming microarrays of biological samples on a support are disclosed. The method involves dispensing a known volume of a reagent at each selected array position, by...
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6096274 |
Analysis device
The invention relates to an analysis device with a multi-way valve which is connected, via a pump line, to a bidirectional pump. A storage member for storing a sample fed to it and any auxiliary...
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6025484 |
Protein D--an IgD-binding protein ofhaemophilus influenzae
A novel surface exposed protein of Haemophilus influenzae or related Haemophilus species is described. The protein named protein D is an Ig receptor for human IgD and has an apparent molecular...
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5968731 |
Apparatus for automated testing of biological specimens
An apparatus for performing automated testing of infections biological specimens is disclosed. The apparatus comprise a process controller for translating user commands into test instrument suite...
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5925514 |
Apparatus for testing for infection by a retrovirus
An apparatus for testing specimens for infection by a retrovirus is described. The apparatus comprises a process controller including a communications module for translating user commands into test...
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5618495 |
Colorimetric titration method and apparatus
The invention relates to colorimetric titration method, a titrator and colorimeter device. The titrating apparatus comprises radiant energy means for producing radiant energy. The device includes...
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5601784 |
On-line control and monitoring system for wet lime/limestone flue gas desulfurization process
An on-line control and monitoring system for automatically and continuously analyzing key process indicators in a wet lime/limestone flue gas desulfurization process is provided. The on-line...
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5529907 |
Method of determining patient neutrophil activity and apparatus for practicing the same
The present invention relates to a method of determining the metabolic state of neutrophils present in the body of a patient. In particular, the present invention involves the measurement of the...
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5389546 |
Method for determining and monitoring constituent concentration of an aqueous metalworking fluid
The total alkalinity of an aqueous metalworking fluid is monitored and controlled by a continuous titration method that continuously supplies a stream of the metalworking fluid, at a known,...
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5368819 |
Automated process chloride analyzer
An automated analysis system is provided for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a...
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5364594 |
Method and apparatus for the coulometric detection of dissolved gases particularly TCO.sub.2 in seawater
A system for coulometric TCO 2 analysis wherein a sample bottle is pressurized by a head space gas having a CO 2 composition which approximates the dissolved CO 2 concentration in the sample....
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5340541 |
Automated Karl Fischer titration apparatus and method
Automation of the coulometric Karl Fischer titration has allowed for the accurate, precise determination of moisture content of lyophilized hGH formulations. The system of the present invention...
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5291418 |
Adjustment of electric potential by automatic titration
Automatic titration method and apparatus provides for adjustment of the electric potential of a solution. A programmed computer responsive to iterative measurements of the potential regulates a...
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5260220 |
Method and apparatus for monitoring impurities in a liquified hydrocarbon stream
An automated analysis system for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a water...
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5192509 |
Apparatus for automatic titration
An automatic titration device for use in either batch processing or a continuous processing mode to identify quantitative fluid properties. The device consists of a plurality of reservoirs each...
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5186895 |
Method and apparatus for automatic analysis of fluid composition involving a time-dependent variation thereof
An automatic analytical apparatus in which a series of operations ranging from the sampling into a treating receptacle, pretreatment, analysis and discharge of a fluid sample to the preparation for...
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5132233 |
Sample injection cell
The sample injection cell comprises a body and a bore through the body for receiving a probe to pass fluid sample into the bore. A transverse passageway into the body permits a diluent to enter the...
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5108929 |
Method and system for treatment of alkaline streams
Efficient control of the pH of a flowing alkaline wastewater stream is accomplished by monitoring the pH of the flowing stream, generating a signal in response to the pH monitored, and injecting CO...
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5104527 |
Automatic total reducers monitoring and adjustment system using titration
A process and apparatus for automatically monitoring or adjusting, or both, the concentration of total reducers (i.e. reduced sulfur-containing constituents which consume iodine) in an aqueous...
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5080866 |
Analytic appparatus and method
A method of analysis in which a first fluid is delivered to a sensing position at a controlled first rate of flow through a fluid junction. Fluid including this first fluid is pumped to the sensing...
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5006312 |
Gravimetric titration apparatus for the determination of the iodine number of carbon black
A gravimetric method for determining the iodine adsorption number of carbon black is disclosed. The concentration of an accurately weighed iodine solution is determined by titrating with a...
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5002892 |
Gravimetric determination of the iodine number of carbon black
A gravimetric method for determining the iodine adsorption number of carbon black is disclosed. The concentration of an accurately weighed iodine solution is determined by titrating with a...
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4950610 |
Titrating apparatus and method
Titration apparatus includes two cells that receive and contain liquids and are transparent to light. A liquid having an unknown characteristic and mixed with an indicator that is optically...
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4920056 |
Apparatus and method for automated microbatch reaction
Apparatus and method for automatic microbatch reaction including a reactor having a reaction chamber, such as a 1.5 milliliter plastic centrifuge tube having a conical bottom. An automatically...
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4873057 |
Apparatus for carrying out a titration procedure for the chemical analysis of a sample
The sample and the reagent required for titration are fed into a titration vessel (1), the reagent and/or sample being supplied intermittently in the form of pulses of liquid. Toward this end, a...
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4865992 |
System and method for quantitative analysis of a solution
A system and method for quantitative analysis of a solution to determine the concentration of a chemical species in the solution. The system includes a reaction vessel; a source of at least one...
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4749552 |
Automatic titration analysis apparatus
Automatic titration analysis apparatus includes a sampling mechanism, a titration mechanism, an analysis mechanism and a control mechanism. The sampling mechanism takes a prescribed quantity of a...
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4741815 |
Apparatus for indication of the final stage of a titration analysis
An apparatus for electrochemical indication of the final stage of a titration analysis has a first indication electrode located in an electrochemical titration container connected by a switch to a...
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4671123 |
Methods and apparatus for pipetting and/or titrating liquids using a hand held self-contained automated pipette
A hand held self-contained automated pipette for portable operation having an electrically operated digital linear actuator. The actuator preferably includes a stepper motor driving a rotor. A...
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4597806 |
Process for maintaining the zinc content in zinc phosphate baths
In a process for maintaining a given zinc content in nickel-containing zinc phosphate baths, (a) nickel is precipitated in a bath sample by addition of dimethylglyoxime, a soluble copper complex...
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4554255 |
Determination of sulfurous acid in liquids and an apparatus therefor
A method and an apparatus providing a simple and speedy determination of a slight amount of sulfurous acid contained in liquids by means of pH meters, based on the Modified Rankine's method in...
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4476095 |
Fluorometric titrator
A fluorometric titrator has means to transfer a pipette between first and second positions and a buret for a chelating agent has a reversible drive powered either by a pulse generator or an...
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4334881 |
Method and apparatus for automatic end-point detection in tripolyphosphate sequestration of hardness
A method and apparatus for automatic end-point detection in tripolyphosphate sequestration of hardness are disclosed. A desired approximate 1:1 molar ratio of the hardness elements calcium (Ca) and...
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