Matches 1 - 29 out of 29
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US20090294661 MASS SPECTROMETER AND MASS SPECTROMETRY METHOD  
The present invention relates to an ion trap with a large trap capacity. A mass spectrometer comprises a first linear ion trap that performs mass selective ejection, and a second linear ion trap...
US20090278043 ION GUIDE DEVICE, ION REACTOR, AND MASS ANALYZER  
A charged particle reaction cell of the present invention has a serially-arranged plurality of ring electrodes, wherein a modulated radio frequency voltage obtained by modulating the amplitude of a...
US20090272898 Two-Dimensional Ion Trap with Ramped Axial Potentials  
The invention provides a two-dimensional ion trap, comprising a plurality of elongate electrodes positioned between first and second end electrodes, the plurality of electrodes and first and second...
US20090261247 Linear Ion Trap with Four Planar Electrodes  
A rectilinear ion trap includes a first pair of spaced planar RF electrodes, mounted in parallel and a second pair of spaced planar electrodes, mounted in parallel and orthogonal to the first pair...
US20090261246 Compact superconducting magnet configuration with active shielding having a shielding coil contributing to field formation  
A superconducting magnet configuration ( 4; 14 ) for generating a homogeneous magnetic field B 0 in an examination volume ( 4 b ), has an interior radial superconducting main field coil ( 1 )...
US20090256070 ION TRAP, MASS SPECTROMETER, AND ION MOBILITY ANALYZER  
A compact, low-cost, and simple ion trap capable of operating at a low vacuum level is provided along with technology for utilizing that ion trap to perform mass spectroscopy and analyzing ion...
US20090206250 PARALLEL PLATE ELECTRODE ARRANGEMENT APPARATUS AND METHOD  
A system for guiding an ion beam along an axis (Z), comprises at least one section having upper flat plate strip electrodes (Iu, 2 u , 3 u , 4 u and 5 u ) and lower flat plate strip electrodes...
US20090206248 ION ENERGY SPREAD REDUCTION FOR MASS SPECTROMETER  
A method for reducing the energy spread of ions over a specific and limited mass to charge ratio range is disclosed, along with an ion deceleration arrangement for implementing such a method. An...
US20090194678 METHODS AND DEVICES FOR THE MASS-SELECTIVE TRANSPORT OF IONS  
A method for the mass-selective transport of ions, especially in a mass spectrometer, comprises the steps movement of the ions on a movement path on which a plurality of electrodes are arranged,...
US20090194680 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...
US20090189064 ULTRA COMPACT ION MOBILITY BASED ANALYZER APPARATUS, METHOD, AND SYSTEM  
An ultra compact ion mobility based analyzer in a multilayered chip assembly employing various features such as a ion flow generator to propel ions through an ion mobility based filter and,...
US20090072136 Mass Spectrometer  
A mass analyser ( 2 ) is provided comprising a plurality of electrodes having apertures through which ions are transmitted in use. A plurality of seudo-potential corrugations are created along the...
US20090065692 High pressure collision cell for mass spectrometer  
A high pressure collision cell for use in a mass spectrometer. The high pressure collision cell has a cell length L selected to be in a range such that upon application of voltages to a pair of...
US20090032700 THREE-DIMENSIONAL RF ION TRAPS WITH HIGH ION CAPTURE EFFICIENCY  
In a three-dimensional Paul RF ion trap at least one of the ring electrode and end cap electrodes is structured to produce a high capture efficiency for analyte ions introduced into the trap. The...
US20080315085 FAIMS Cell Having an Offset Ion Inlet Orifice  
A FAIMS cell has an elongated inner electrode with a longitudinal axis extending along a first direction. The inner electrode has a curved outer surface that defines a circle when viewed in a cross...
US20080251712 MEASUREMENT OF THE MOBILITY OF MASS-SELECTED IONS  
The mobility of mass-selected ions in gases is measured at pressures of a few hectopascal by selecting the ions under investigation in a quadrupole filter according to their mass-to-charge ratio...
US20080251717 Q-pole type mass spectrometer  
A Q-pole type mass spectrometer can be used under a high-pressure atmosphere of more than 0.1 Pa. The Q-pole type mass spectrometer can analyze the mass of gas molecules continuously, and can...
US20080218102 Programmable radio frequency waveform generatior for a synchrocyclotron  
A synchrocyclotron comprises a resonant circuit that includes electrodes having a gap therebetween across the magnetic field. An oscillating voltage input, having a variable amplitude and frequency...
US20080217527 Chemical structure-insensitive method and apparatus for dissociating ions  
In a method for exciting a precursor ion in an ion trap, the ion is trapped in a nonlinear trapping field that includes a quadrupolar field and a multipole field. The quadrupolar field is generated...
US20080179515 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...
US20080111070 Obtaining Tandem Mass Spectrometry Data for Multiple Parent Ions in an Ion Population  
This invention relates to tandem mass spectrometry and, in particular, to tandem mass spectrometry using a linear ion trap and a time of flight detector to collect mass spectra to form a MS/MS...
US20080073514 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...
US20080073513 MASS SPECTROMETER  
An object of the present invention is to provide a mass spectrometer that uses a time-of-flight mass spectrometer for performing mass spectrometry on the basis of the difference in flight time...
US20080067359 FLEXIBLE OPEN TUBE SAMPLING SYSTEM FOR USE WITH SURFACE IONIZATION TECHNOLOGY  
The present invention is a device to restrict the sampling of analyte ions and neutral molecules from surfaces with mass spectrometry and thereby sample from a defined area or volume. In various...
US20080067360 Two-dimensional ion trap with ramped axial potentials  
The invention provides a two-dimensional ion trap, comprising a plurality of elongate electrodes positioned between first and second end electrodes, the plurality of electrodes and first and second...
US20080067358 APPARATUS FOR HOLDING SOLIDS FOR USE WITH SURFACE IONIZATION TECHNOLOGY  
The present invention is a device to restrict the sampling of analyte ions and neutral molecules from surfaces with mass spectrometry and thereby sample from a defined area or volume. In various...
US20080048112 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...
US20080035841 Ion Trap and a Method for Dissociating Ions in an Ion Trap  
A quadrupole ion trap includes a switch 3 for switching a trapping voltage between discrete voltage levels V H , V L . This creates a digital trapping field for trapping precursor ions and...
US20080001083 Electronic drive and acquisition system for mass spectrometry  
The present invention discloses an mixed signal RF drive electronics board that offers small, low power, reliable, and customizable method for driving and generating mass spectra from a mass...
Matches 1 - 29 out of 29