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7622713 |
Method and apparatus for normalizing performance of an electron source
A method for operating a mass spectrometer includes determining a first performance characteristic while operating the mass spectrometer with a first electron emitter, storing first information...
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7622711 |
Mass spectrometer
A mass spectrometer is disclosed comprising an ion mobility spectrometer or separator ( 3 ) arranged upstream of a collision or fragmentation cell ( 5 ). Ions are separated according to their ion...
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7619214 |
Spectrometer chip assembly
Method and apparatus for high field asymmetric waveform ion mobility spectrometry in an electronic chip assembly, including an input section, an ion filter and detection section and a control...
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7619213 |
Ion extraction pulser and method for mass spectrometry
The invention provides an ion extraction pulser. The ion extraction pulser may be used independently or in conjunction with a mass spectrometry system. The mass spectrometry system includes an ion...
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7612335 |
Method and apparatus for ion fragmentation by electron capture
The present invention relates to a method and apparatus for ion fragmentation by electron capture. The present invention provides a method of generating fragment ions by electron capture,...
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7608818 |
Compact gas chromatography and ion mobility based sample analysis systems, methods, and devices
A compact integrated ion mobility based analysis system includes at least one gas chromatograph (GC) column that receives a sample and elutes constituents of the sample where each of the eluted...
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7608817 |
Adiabatically-tuned linear ion trap with fourier transform mass spectrometry with reduced packet coalescence
A linear ion trap traps a plurality of charged particles in a charged particle trap including first and second electrode mirrors arranged along an axis at opposite ends of the particle trap, the...
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7598488 |
Apparatus and method for field asymmetric ion mobility spectrometry combined with mass spectrometry
In a system for analyzing samples by mass spectrometry, analyte ions are analyzed first by field asymmetric ion mobility spectrometry (FAIMS) before being analyzed by a mass analyzer. The analyte...
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7595486 |
RF multipole ion guides for broad mass range
In a multipole rod ion guide system operated with RF voltages to collect or transmit ions, the inhomogeneity of the electric RF fields is increased in front of the ion guide rods by forming the rod...
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7589319 |
Reflector TOF with high resolution and mass accuracy for peptides and small molecules
Many applications in the study of metabolics and proteomics require measurements on peptides and small molecules with high resolving power and mass accuracy. These are often present in complex...
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7586092 |
Method and device for non-contact sampling and detection
A system for the stand-off detection of trace amounts of analyte materials such as explosives, chemical warfare agents, toxic industrial chemicals, and the like includes an ion source that is...
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7586090 |
Cell structure, device and method for gas analysis
The invention relates to a gas analysis based on the mobility of ions. The invention relates to a cell structure of an analysis device, the cell structure comprising the reference cell ( 201 ), the...
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7579586 |
Ion selector
The present invention provides an ion selector gate having a first deflection zone 32 and a second deflection zone 34 spaced from the first deflection zone, wherein in use, a single low voltage...
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7576322 |
Non-contact detector system with plasma ion source
A system for the non-contact detection of analyte chemicals, including explosives, chemical warfare agents and the like, employs a non-equilibrium plasma that is maintained at a temperature...
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7576321 |
Multidimensional ion mobility spectrometry apparatus and methods
Various embodiments of a multi-dimensional ion mobility analyzer are disclosed that have more than one drift chamber and can acquire multi-dimensional ion mobility profiles of substances. The drift...
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7576320 |
Photoelectric ion source photocathode regeneration system
An explosive detection system based on an ion mobility spectrometer detects the presence of trace molecules in air. Such instruments require an ion source to ionize the trace molecules. An ion...
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7576319 |
Systems for differential ion mobility analysis
Disclosed herein are systems, methods and apparatus, for detection and identification of chemical warfare agents (CWAs) using a differential mobility spectrometer.
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7569835 |
Gating grid and method of manufacture
The present invention relates generally to grids for gating a stream of charged particles and methods for manufacturing the same. In one embodiment, the present invention relates to a...
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7560688 |
Mass analysis of mobility selected ion populations
Particular aspects provide novel methods for analysis of ion populations, the methods comprising filtering and selecting an ion population using a low-field dual-gate ion mobility spectrometer...
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7550751 |
Ion beam scanning control methods and systems for ion implantation uniformity
One embodiment of the invention relates to a method for adjusting the ribbon beam flux of a scanned ion beam. In this method, an ion beam is scanned at a scan rate, and a plurality of dynamic beam...
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7547891 |
Ion sampling apparatuses in fast polarity-switching ion sources
The present invention provides ion sampling apparatuses that can be used in a fast polarity-switching electric field. In some embodiments, the ion sampling apparatus comprises a capillary made with...
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7547880 |
Drift tube for an ion mobility spectrometer with integrated gas channel
A drift tube for an ion mobility spectrometer is assembled from stacked tube segments and has electrodes that generate an electric drift field and are electrically contactable from the outside of...
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7538320 |
Ion detection device and method with compressing ion-beam shutter
An ion detection device, method and computer readable medium storing instructions for applying voltages to shutter elements of the detection device to compress ions in a volume defined by the...
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7528367 |
Ion mobility spectrometer
An ITMS includes an inlet for receiving a sample that will be tested for a substance of interest. The inlet communicates with an ionization chamber and a drift chamber communicates with the...
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7518107 |
Methods and apparatus for time-of-flight mass spectrometer
Disclosed are methods and apparatus for compensating for mass error for a time-of-flight mass spectrometer. A reference flight distance for a pulse of ions corresponding to a reference temperature...
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7518106 |
Ion mobility spectrometers and methods for ion mobility spectrometry
An ion mobility spectrometer may include an inner electrode and an outer electrode arranged so that at least a portion of the outer electrode surrounds at least a portion of the inner electrode and...
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7518105 |
Continuous sampling ion mobility spectrometers and methods therefor
An ion mobility spectrometer may include a flow channel having an inlet end and an outlet end. A deflection electrode is positioned within the flow channel so that a non-linear electric field is...
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7514676 |
Method and apparatus for selective filtering of ions
An adjustable, low mass-to-charge (m/z) filter is disclosed employing electrospray ionization to block ions associated with unwanted low m/z species from entering the mass spectrometer and...
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7514673 |
Ion transport device
A device for transporting and focusing ions in a low vacuum or atmospheric-pressure region of a mass spectrometer is constructed from a plurality of longitudinally spaced apart electrodes to which...
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7504621 |
Method and system for mass analysis of samples
A system and method of analyzing a sample is described. The system includes an ion source and a deflector for producing a plurality of ion beams each of which is detected in distinct detection...
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7498571 |
RF power supply for a mass spectrometer
The present invention provides a radio frequency (RF) power supply in a mass spectrometer. The power supply provides an RF signal to electrodes of a storage device to create a trapping field. Such...
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7498570 |
Ion mobility spectrometer
An ion mobility spectrometer is described having an ion filter in the form of multiple parallel ion channels defined by conductive layers separated by non-conductive layers. A time-varying electric...
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7491930 |
Hooked differential mobility spectrometry apparatus and method therefore
Disclosed are a device and method for improved interfacing of differential mobility spectrometry (DMS) or field asymmetric waveform ion mobility spectrometry (FAIMS) analyzers of substantially...
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7485872 |
Large area, pico-second resolution, time of flight detectors
A detector for detecting a particle is disclosed. The detector includes a charge emitter that emits a charge in response to receipt of the particle, an anode for receiving the emitted charge, and...
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7485852 |
Mass analysis method and mass analysis apparatus
The present invention achieves a mass analysis method that can identify protein or peptide with high speed and high sensitivity. A mass spectrum is obtained from a standard sample of healthy...
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7482582 |
Multi-beam ion mobility time-of-flight mass spectrometry with multi-channel data recording
The content of the invention comprises a concept of multi-beam ion pre-selection from a single sample, coordinated mobility (against the gas flow) separation, cooling ions in supersonic gas flow...
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7470898 |
Monitoring drinking water quality using differential mobility spectrometry
Continuous monitoring of fluid composition, e.g. drinking water supply, with improved detection sensitivity and selectivity to varying degrees of contamination at and below the predetermined...
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7462825 |
Method and apparatus for electrospray-augmented high field asymmetric ion mobility spectrometry
A field asymmetric ion mobility spectrometer apparatus and system including a sample preparation and introduction section, a head for delivery of ions from a sample, an ion filtering section, an...
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7456393 |
Device for testing surfaces of articles for traces of explosives and/or drugs
A device is provided for testing surfaces of a card for the presence of explosives, drugs or other substances of interest. The device includes a slot for receiving the card. Thin metallic wiper...
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7453059 |
Technique for monitoring and controlling a plasma process
A time-of-flight ion sensor for monitoring ion species in a plasma includes a housing. A drift tube is positioned in the housing. An extractor electrode is positioned in the housing at a first end...
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7449685 |
Gas monitoring apparatus
A gas monitoring apparatus includes a sample introducing portion, a measurement portion, an ionization portion, a mass analysis portion, a data processing portion and a display. The sample...
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7435970 |
Beam current meter
It is possible to simplify the cooling mechanism of a superconductor, significantly reduce the cost, simplify the measurement work, and reduce the time required for measurement. A beam current...
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7435949 |
Mass spectrometric analysis method and system using the method
A tandem analysis system is provided for ionizing a substance, performing mass spectrometric analysis of various ion types generated, selecting and dissociating an ion type, the ion type having a...
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7430871 |
NMR spectrometer with a common refrigerator for cooling an NMR probe head and cryostat
An NMR spectrometer comprising a magnet coil system disposed in the helium tank ( 8 ) of a cryostat and an NMR probe head ( 4 ) which is disposed in a room temperature bore of the cryostat and...
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7429731 |
Method and device for non-contact sampling and detection
A system for the stand-off detection of trace amounts of analyte materials such as explosives, chemical warfare agents, toxic industrial chemicals, and the like includes an ion source that is...
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7429730 |
SIFT-MS instruments
A SIFT or SIFDT apparatus in which the upstream quadrupole and the downstream quadrupole are housed within a single evacuated chamber with the upstream quadrupole being connected to the downstream...
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7429729 |
Multi-beam ion mobility time-of-flight mass spectrometer with bipolar ion extraction and zwitterion detection
The present invention relates generally to instrumentation and methodology for the characterization of chemical samples in solutions or on a surface which is based on modified ionization methods...
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7423259 |
Mass spectrometer and method for enhancing dynamic range
A mass spectrometer comprises an ion detector, a first amplifier, a second amplifier, and a spectra combiner. The ion detector is configured to generate an analog signal indicative of ions detected...
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7417224 |
Ion mobility spectrometer with parallel drift gas and ion carrier gas flows
An ion mobility spectrometer is provided with at least one ionization chamber ( 1 ) through which analyte-containing gas can flow. A radiation source ( 2 ) is provided from which ionizing radiation...
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7417223 |
Method, system and computer software product for specific identification of reaction pairs associated by specific neutral differences
A first mass spectrum and a second mass spectrum of the same ion sample can be analyzed to determine reaction pairs. These reaction pairs are determined based on a selected neutral difference by...
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