|
Match
|
Document |
Document Title |
|
|
8156788 |
Supercritical-phase mixed chromatography method and installation for implementing same
A method for the superficial-phase chromatography of a product comprises the steps which are performed continuously in the following order, namely: an operation consisting in pumping a...
|
|
|
8134121 |
Chromatographic mass spectrometer
A chromatographic mass spectrometer 100, 150 is provided with a measuring portion 21 for measuring n-alkane of a number of different carbon numbers, and characterized by further having: a mass...
|
|
|
8117040 |
System and method for identifying, reporting, and evaluating presence of substance
A system and method for identifying, reporting, and evaluating a presence of a solid, liquid, gas, or other substance of interest, particularly a dangerous, hazardous, or otherwise threatening...
|
|
|
8087287 |
Method for analyzing engine oil degradation
The present disclosure provides a method for detecting degradation of an engine oil, by separation into a polar component and a non-polar component via admixture with a polar solvent having a...
|
|
|
8080426 |
Method and apparatus for controlling hydroprocessing on-line
This unique process is a feed forward control of hydroprocessing by on-line sulfur speciation. An on-line gas analyzer such as (GC) with a sulfur specific detector (AED) would be installed to...
|
|
|
8046934 |
Convective system for a dryer installation
The present invention concerns a convective system for a dryer installation for a passing web, more particularly paper. The convective system 7 is an assembly of an exterior casing 13 for suction...
|
|
|
8049166 |
Mass spectrometer system and mass spectrometry method
A mass spectrometer system comprises a chamber having an ion emitting unit to emit metal ions in the chamber with a communicating hole; a neutral molecule introduction unit; another gas...
|
|
|
7985597 |
Process and apparatus for providing a gaseous substance for the analysis of chemical elements or compounds
The invention relates to a process and to an apparatus for providing a gaseous substance for the analysis of chemical elements or compounds. In one embodiment, a starting substance is continuously...
|
|
|
7976780 |
Method and apparatus for measuring isotopic characteristics
Methods and apparatus are provided to measure isotopic characteristics of a number of sample types. Embodiments of the invention combine novel and existing components to produce more accurate...
|
|
|
7959865 |
Miniaturized gas chromatograph and injector for the same
The invention relates to a miniaturized gas chromatograph and injector for the same. Said micro-GC is compact and simple and economical to construct. Dead volumes are largely avoided in order to...
|
|
|
7928365 |
Method and apparatus for mass spectrometry
For the achievement of data transfer time reduction, removal of noise data, and analytical efficiency improvement in an ADC data processing function of a time-of-flight mass spectrometer, the mass...
|
|
|
7600439 |
Apparatus and method for storage of atmospheric sample for eventual chemical analysis
The present invention provides a method and system for collecting and storing an atmospheric sample for eventual analysis, where the atmospheric sample includes a mixture of at least a matrix and...
|
|
|
7593835 |
Reformulated atmospheric band model method for modeling atmospheric propagation at arbitrarily fine spectral resolution and expanded capabilities.
A radiative transport band model method for prediction and analysis of high spectral resolution radiometric measurements. Atomic and molecular line center absorption is determined from finite...
|
|
|
7520159 |
Gas chromatograph
The invention relates to a gas chromatograph for the analysis of gas samples. It has a feed arrangement for feeding the sample, an open tubular capillary column for separating the components of the...
|
|
|
7509837 |
Method and system for chemical and physical characterization of complex samples
A method and system for rapid determination of a composition, such as crude oils and fractions thereof, and s obtaining the information necessary to assess the yield of commercially valuable fuel...
|
|
|
7433806 |
Band model method for modeling atmospheric propagation at arbitrarily fine spectral resolution
A radiative transport band model algorithm has been developed for prediction and analysis of high spectral resolution radiometric measurements. Atomic and molecular line center absorption is...
|
|
|
7361206 |
Apparatus and method for water vapor removal in an ion mobility spectrometer
The present invention is directed to an apparatus and a method for continuously removing water vapor from a closed loop, re-circulated gas flow in an ion mobility spectrometer using a water...
|
|
|
7305866 |
Mass spectrometry
A method of gas chromatograph mass spectrometry with a negative chemical ionization (NCI) process includes analyzing a standard substance for the NCI by deriving with a derivatization reagent a...
|
|
|
7294177 |
Gas chromatograph mass spectrometer
An interface placed between a gas chromatograph part and a mass spectrometer part of a gas chromatograph mass spectrometer for allowing one or two columns to pass air-tightly from the gas...
|
|
|
7288760 |
Conformational real-time atmospheric and environmental characterization sampling apparatus and method
The present invention relates generally to a method and apparatus for real-time environmental gas sampling. A manifold is disclosed allowing for real-time gas sampling and monitoring/analysis of...
|
|
|
7269994 |
Chromatograph/mass spectrometer
The present invention provides a chromatograph/mass spectrometer capable of producing a composite chromatogram from plural chromatogram signals without causing the baseline level to rise or the...
|
|
|
7267796 |
Preparative liquid chromatograph using plural detectors
The preparative liquid chromatograph uses a plurality of detectors including a mass spectrometer, and a chromatogram generator is provided for generating a plurality of chromatograms each...
|
|
|
7260978 |
Gas chromatography/mass spectrometry system
A gas chromatography/mass spectrometry system includes two sample introduction parts, a gas chromatography part having two columns, a column oven for housing the two columns in a parallel...
|
|
|
7213443 |
Process and apparatus for providing gas for isotopic ratio analysis
The invention relates to a process and to an apparatus for providing gas for isotopic ratio analysis. According to the invention, a gas is generated from an eluate of a liquid chromatograph (LC)....
|
|
|
7191037 |
Method for controlling production process
A method for controlling production process by performing near-infrared absorptiometric analysis by simple procedures in an accurate manner, in which control of production process step can be...
|
|
|
7148475 |
Device for automated coupling between a micro-chromatograph and a mass spectrometer comprising a temperature adjustment
An instrument including a chromatographic column with a final detector and a mass spectrometer. A temperature of an interface including an output tube and a capillary tube adjusting the flow to the...
|
|
|
7143575 |
System for controlling noxious emissions in exhaust gases of an internal-combustion engine of a motor vehicle by means of an IR spectrophotometer on board the motor vehicle
Noxious emissions present in the exhaust gases of an internal-combustion engine of a motor vehicle are controlled by making use of an IR spectrophotometer provided on board the motor vehicle, for...
|
|
|
7140231 |
Evolved gas analyzing method and apparatus
An evolved gas analysis system contains a first measurement step of heating a first sample containing measurement target material and non-measurement target material at a predetermined temperature...
|
|
|
7107818 |
Method and device for comprehensive two-dimensional gas chromatography
A method for detecting substances or mixtures of substances within a sample in an apparatus for comprehensive two-dimensional gas-chromatographic analysis according to the present invention,...
|
|
|
6907768 |
Device for coupling a microchromatograph with a mass spectrometer and analysis device
A coupling device connecting the output of a microchromatograph (μCG) to the input of a mass spectrometer (MS), said coupling device comprising a capillary tube with one end connected in sealed ...
|
|
|
6840085 |
Photoionization detector with multiple ionization cells
A photoionization detector comprising multiple ionization cells for detecting the presence of chemical compounds in multiple fluid samples. The photoionization detector uses a single source of...
|
|
|
6819798 |
Spectral drift and correction technique for hyperspectral imaging systems
A method for determining magnitude and direction of spectral channel drift for several consecutive spectral regions over a wide spectral range. According to the method of the present invention,...
|
|
|
6767732 |
Method and apparatus for the detection of volatile products in a sample
A method and apparatus is provided for detection of volatile products from a sample using a transducer which changes voltage as a function of contact of the volatile products with the transducer to...
|
|
|
6607700 |
Gas diffusion sampling and measurement system for occupational dosimetry and air quality monitoring as exemplified by a carbon monoxide occupational dosimeter
CO exposure is a serious public health problem in the U.S., causing both morbidity and mortality (lifetime mortality risk approximately 10−4). Sparse data from population-based CO exposure a...
|
|
|
6418781 |
System for analyzing trace amounts of impurities in gases
An analyzing apparatus for assaying various kinds of trace impurity contents in various kinds of high-purity gases, having an atmospheric pressure ionization mass spectrometer useful for...
|
|
|
6358215 |
Infrared gas content analyzing apparatus
In a respiratory air flow measuring monitor, a subassembly for analyzing certain respiratory gases through infrared spectroscopy includes an infrared emitter and an infrared detector, the amount of...
|
|
|
6351983 |
Portable gas chromatograph mass spectrometer for on-site chemical analyses
A portable, lightweight (approximately 25 kg) gas chromatograph mass spectrometer, including the entire vacuum system, can perform qualitative and quantitative analyses of all sample types in the...
|
|
|
6329652 |
Method for comparison of similar samples in liquid chromatography/mass spectrometry
A method is disclosed to reduce the time needed to analyze data generated from very similar samples, emphasizing the differences obtained, from the combined technique of liquid chromatography/mass...
|
|
|
6324892 |
Multi-gas analysis system for analyzing high-purity gases
There are provided an apparatus for analyzing gases and a gas analyzing method which can securely detect presence and absence of leakage in a short time and which can carry out analyses...
|
|
|
6294389 |
Furnace for an engine exhaust measurement system
An apparatus and method by which tracer compounds and combustion products in the exhaust of an internal combustion engine are more completely combusted, so that oil consumption of the engine can be...
|
|
|
6258040 |
Airway adapter for non-dispersive infrared gas analyzer
A transparent sheet 11 for transmitting an infrared ray therethrough is formed by laminating a PET sheet 5 on which a anti-fogging layer 4 can be formed easily and a PP sheet 12 with good infrared...
|
|
|
6237396 |
Integrated analysis process and device for hydrocarbon characterization by distillation simulation
Integrated analysis process and device for characterization of hydrocarbons in a petroleum product, in distillation fractions, by simulated distillation. The hydrocarbons of a petroleum sample are...
|
|
|
6175111 |
Method for diagnosis of components inside turbine generator
A method for diagnosis of components inside a turbine generator includes collecting and measuring organic substances present in a gas inside the turbine generator to obtain data (first data)....
|
|
|
6125689 |
Non-destructive semiconductor wafer test system
The invention provides methods and systems for identifying compounds released from a semi-conductor wafer. Compounds are released from the wafer by subjecting the wafer to a rapid temperature...
|
|
|
6032513 |
Apparatus and method for measuring contaminants in semiconductor processing chemicals
An trace analyzer apparatus and method useful in semiconductor processing for measuring trace impurities in gases and liquids comprising a gas chromatograph serving to replace a bulk gas in a...
|
|
|
6006584 |
Gas chromatograph mass spectrometer
A GC/MS includes a sample conduit 22 between a gas chromatographic column and an ionizing chamber 31 which is placed in a vacuum housing 35, and the heating mechanism for the sample conduit 22 and...
|
|
|
5962774 |
Real-time monitoring of volatile organic compounds using chemical ionization mass spectrometry
A system for on-line quantitative monitoring of volatile organic compounds (VOCs) includes pressure reduction means for carrying a gaseous sample from a first location to a measuring input location...
|
|
|
5939613 |
Low-vacuum mass spectrometer
The invention provides a low-vacuum mass specrometer for use as gas analyzer, including a drift tube having a gas inlet and an ionization region at one end thereof, a power source for supplying the...
|
|
|
5872306 |
Real-time gas-chromatography mass-spectrometry trace vapor detection
A gas flow distribution system accumulates a sample from a sample bearing carrier gas in a micro-accumulator, delivers it using a carrier gas to a gas chromatography column, and supplies a carrier...
|
|
|
5753795 |
Demountable vacuum-sealing plate assembly
A detachable, vacuum-sealing plate assembly is provided for vacuum chamber access. The assembly has a demountable hinge, thereby permitting the plate to be swung open or closed, or completely...
|