Patent classifications
H01J49/009
IMAGING MASS SPECTROMETER
A time-of-flight mass spectrometer is disclosed comprising ion optics that map an array of ions at an ion source array (71) to a corresponding array of positions on a position sensitive ion detector (79). The ion optics include at least one gridless ion mirror (76) for reflecting ions, which may compensate for various aberrations and allows the spectrometer to have relatively high mass and spatial resolutions.
ION INTEGRATING AND COOLING CELL FOR MASS SPECTROMETER
A method for operating a mass spectrometer comprises: generating a stream of ions by an ion source; directing the stream of ions into a first one of a pair of ion storage locations and trapping a first portion of the ions therein; directing a packet of ions from the other one of the pair of ion storage locations into an ion cooling cell that damps the kinetic energy of the ions comprising the packet of ions; directing the packet of ions to a mass analyzer of the mass spectrometer for mass analysis thereby; directing the first portion of ions from the first one of the pair of ion storage locations into the ion cooling cell; and directing the first portion of ions to the mass analyzer for mass analysis thereby.
PARTICLE BEAM MASS SPECTROMETER AND PARTICLE MEASUREMENT METHOD BY MEANS OF SAME
The present invention relates to a particle beam mass spectrometer and particle measurement method by means of same. More particularly, the present invention relates to a particle beam mass spectrometer including: a particle focusing unit focusing a particle beam induced by gas flow; an electron gun forming a charged particle beam by accelerating thermal electrons to ionize the particle beam focused by the particle focusing unit; a deflector deflecting the charged particle beam according to kinetic energy to charge ratio; and a sensing unit measuring a current induced by the deflected charged particle beam, wherein the deflector includes at least one particle beam separation electrode provided at each of opposite sides with respect to a progress axis of the charged particle beam before being deflected.
SECONDARY ION MASS SPECTROMETER AND SECONDARY ION MASS SPECTROMETRIC METHOD
A secondary ion mass spectrometer comprises: (a) a first primary ion source for generating a first pulsed primary ion beam with short pulse durations; (b) a second primary ion source for generating a second pulsed primary ion beam with pulse durations in the range of 50 ns and up to 5 s; (c) a first TOF-SIMS analysis unit for mass spectroscopic analysis of the secondary ions generated by the primary ion pulses of the first primary ion source from a sample; and (d) a second analysis unit for mass spectroscopic analysis of the secondary ions generated by the primary ion pulses of the second primary ion source from a sample.
Methods and devices for parallel analysis of ion mobility spectrum and mass spectrum
A method for parallel analysis in mass spectrometry and ion mobility spectrometry includes enabling a sample to be subjected to a chromatography separation; ionizing the chromatography separated sample and then feeding the sample into a succeeding stage device for analysis, comprising: analyzing at least part of the ionized sample through an ion mobility spectrometer to obtain an ion mobility spectrum, and analyzing at least other parts of the sample through a mass spectrometer to obtain a mass spectrum, wherein the period for obtaining each ion mobility spectrum and each mass spectrum being not longer than 5 s; and performing data post-processing, comprising: correlating the peaks in said ion mobility spectrum and the peaks in said mass spectrum with a deconvolution algorithm according to the consistency in retention time or elution profile for the same analyte in said chromatography.
BIOMOLECULAR PROCESSING PLATFORM AND USES THEREOF
The present invention relates to a device comprising a biomolecular processor. Each biomolecular processor has one or more bioreactor chambers defined by a solid substrate; a support structure within each bioreactor; a cleaving enzyme immobilized to the support structure and operatively positioned within the bioreactor chamber to cleave monomer or multimer units of a biopolymer molecule operatively engaged by the cleaving enzyme; and one or more time-of-flight channels formed in the solid substrate and fluidically coupled to said one or more bioreactor chambers. Each of the time-of-flight channels have two or more sensors including at least (i) a first sensor contacting the time-of-flight channel proximate to the input end of the channel and (ii) a second sensor contacting the time-of-flight channel proximate to the output end of channel. The present invention further relates to methods of sequencing and identifying biopolymer molecules using the device.
INORGANIC AND ORGANIC MASS SPECTROMETRY SYSTEMS AND METHODS OF USING THEM
Certain configurations of systems and methods that can detect inorganic ions and organic ions in a sample are described. In some configurations, the system may comprise one, two, three or more mass spectrometer cores. In some instances, the mass spectrometer cores can utilize common components such as gas controllers, processors, power supplies and vacuum pumps. In certain configurations, the systems can be designed to detect both inorganic and organic analytes comprising a mass from about three atomic mass units, four atomic mass units or five atomic mass units up to a mass of about two thousand atomic mass units.
PARALLEL PROCESSING AND HORIZONTAL SCALING FOR PEAK DETECTION
Disclosed herein are scientific instrument support systems, as well as related methods, computing devices, and computer-readable media. For example, in some embodiments, a scientific instrument support apparatus may include: first logic to receive, from a mass spectrometer, injections data for each of a plurality of injections associated with a sample; second logic to determine peak data for each of the plurality of injections by executing, in parallel on a node, a peak detection algorithm for each of the plurality of injections, third logic to collate the peak data for each of the plurality of injections; and fourth logic to provide the collated peak data for further processing.
MULTIPLE ATTRIBUTE MONITORING METHODOLOGIES FOR COMPLEX SAMPLES
The present disclosure relates generally to a method of multiple attribute monitoring for biological and other complex compounds using a chromatography-optical detector-mass spectrometry method. The mass spectrometry method can use a high resolution mass spectrometer. The methodology utilizes similar analytical techniques and instruments for both the characterization and the monitoring of biological and other complex compounds.
Ion Interface Device Having Multiple Confinement Cells and Methods of Use Thereof
A device and associated method are disclosed for interfacing an ion trap to a pulsed mass analyzer (such as a time-of-flight analyzer) in a mass spectrometer. The device includes a plurality of separate confinement cells and structures for directing ions into a selected one of the confinement cells. Ions are ejected from the ion trap in a series of temporally successive ion packets. Each ion packet (which may consist of ions of like mass-to-charge ratio), is received by the ion interface device, fragmented to form product ions, and then stored and cooled in the selected confinement cell. Storage and cooling of the ion packet occurs concurrently with the receipt and storage of at least one later-ejected ion packet. After a predetermined cooling period, the ion packet is released to the mass analyzer for acquisition of a mass spectrum.