| Patents for H01J 49 - Particle spectrometers or separator tubes (20,265) |
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| 07/03/1991 | EP0434792A1 Multiply charged ions and a method for determining the molecular weight of large molecules |
| 07/02/1991 | US5028777 Method for mass-spectroscopic examination of a gas mixture and mass spectrometer intended for carrying out this method |
| 06/26/1991 | EP0433936A2 A valve and membrane device |
| 06/25/1991 | US5026988 Method and apparatus for time of flight medium energy particle scattering |
| 06/25/1991 | US5026987 Mass spectrometer with in-line collision surface means |
| 06/23/1991 | CA2032946A1 Valve and membrane device |
| 06/09/1991 | WO1991009307A1 Explosive detection screening system |
| 06/05/1991 | EP0430812A2 Charged particle convergence device |
| 06/05/1991 | EP0430774A1 Device and method for detecting a chemical substance of known mass M, and known dissociation fragments in a gas to be analysed |
| 05/28/1991 | US5019706 Ion cyclotron resonance spectrometer |
| 05/28/1991 | US5019237 Metal-ion vapor accelerator cell |
| 05/28/1991 | US5019139 For A Mass Spectrometer |
| 05/28/1991 | CA1284537C Multipurpose gaseous detector device for electron microscope |
| 05/21/1991 | US5017780 Ion reflector |
| 05/21/1991 | US5017779 Real time Faraday spectrometer |
| 05/15/1991 | EP0427532A2 High resolution mass spectrometry of recoiled ions for isotopic and trace elemental analysis |
| 05/14/1991 | US5015848 Mass spectroscopic apparatus and method |
| 05/14/1991 | US5015845 Electrospray method for mass spectrometry |
| 05/14/1991 | US5014738 Valve |
| 05/08/1991 | EP0425658A1 Method and apparatus for producing an arbitrary excitation spectrum for fourier transform mass spectrometry. |
| 05/08/1991 | EP0347452A4 Counterflow leak detector with high and low sensitivity operating modes |
| 05/07/1991 | US5013923 Mass recombinator for accelerator mass spectrometry |
| 05/07/1991 | US5013912 General phase modulation method for stored waveform inverse fourier transform excitation for fourier transform ion cyclotron resonance mass spectrometry |
| 05/02/1991 | EP0425204A2 Secondary ion mass analyzing apparatus |
| 04/30/1991 | US5012052 Isotope-ratio-monitoring gas chromatography-mass spectrometry apparatus and method |
| 04/24/1991 | EP0423454A2 Multimode ionization source |
| 04/16/1991 | US5008537 Composite apparatus with secondary ion mass spectrometry instrument and scanning electron microscope |
| 04/16/1991 | US5008535 Energy analyzer and spectrometer for low-energy electrons |
| 04/09/1991 | US5006706 Analytical method and apparatus |
| 04/04/1991 | WO1991004571A1 Time-of-flight mass spectrometer |
| 04/04/1991 | WO1991004570A1 Method of preparing a sample for analysis |
| 04/03/1991 | EP0419557A1 Resolution improvement in an ion cyclotron resonance mass spectrometer |
| 03/28/1991 | WO1991004781A1 Instrument and method for the laser desorption of ions in mass spectrometry |
| 03/27/1991 | EP0419167A1 Isotopic composition analyzer |
| 03/27/1991 | EP0418785A2 Method and apparatus for mass spectrometric analysis |
| 03/26/1991 | US5002894 Method for the determination of lignin content of a sample by flash pyrolysis in an atmosphere of hydrogen or helium and method therefor |
| 03/21/1991 | CA2025991A1 Method and apparatus for mass spectrometric analysis |
| 03/19/1991 | US5001344 Scanning electron microscope and method of processing the same |
| 03/12/1991 | US4999493 Electrospray ionization interface and method for mass spectrometry |
| 03/12/1991 | US4999492 Inductively coupled plasma mass spectrometry apparatus |
| 03/07/1991 | WO1991003071A1 Method and device for continuous-wave ion beam time-of-flight mass-spectrometric analysis |
| 03/07/1991 | WO1991003070A1 Time-of-flight mass-spectrometer |
| 03/07/1991 | WO1991003069A1 Time-of-flight mass-spectrometer |
| 03/07/1991 | WO1991003068A1 Method of preparing a sample for analysis |
| 03/06/1991 | EP0229790B1 Apparatus for measuring atomic spektra |
| 03/05/1991 | US4998015 Mass spectrometer capable of multiple simultaneous detection |
| 02/28/1991 | DE3931287A1 Preparing analyser for matrix-laser-desorption - mixing analyser and matrix homogeneously, introducing into vacuum and subjecting to shock-like cooling |
| 02/26/1991 | US4996424 Atmospheric pressure ionization mass spectrometer |
| 02/26/1991 | US4996423 Chop mode operated mass spectrometer for reducing the effect of line signals |
| 02/26/1991 | US4996422 Mass spectrometer |
| 02/20/1991 | EP0413482A2 Thin-film continuous dynodes |
| 02/20/1991 | EP0413037A1 Small size ions mass spectrometer |
| 02/19/1991 | US4994676 Electro-optical ion detector for a scanning mass spectrometer |
| 02/19/1991 | US4994165 Liquid junction coupling for capillary zone electrophoresis/ion spray spectrometry |
| 02/12/1991 | US4992662 Scanning |
| 02/05/1991 | US4990856 Mass analysis apparatus and method |
| 02/05/1991 | US4990777 Rod assembly for multipole mass spectrometers |
| 02/05/1991 | US4990775 Resolution improvement in an ion cyclotron resonance mass spectrometer |
| 02/05/1991 | US4990740 Intra-microspray ICP torch |
| 02/05/1991 | CA1279937C Thermal cycle recirculating pump for isotope purifier |
| 02/04/1991 | WO1991002375A1 Microminiaturized electrostatic pump |
| 02/02/1991 | WO1991002376A1 Plasma source mass spectrometry |
| 02/02/1991 | CA2064706A1 Plasma source mass spectrometry |
| 01/30/1991 | EP0410340A2 Method and apparatus for interfacing a chromatographic equipment with a mass spectrometer |
| 01/29/1991 | US4988870 Open-split interface for mass spectrometers |
| 01/29/1991 | US4988869 Method and apparatus for electron-induced dissociation of molecular species |
| 01/29/1991 | US4988868 Ion detector |
| 01/29/1991 | US4988867 Simultaneous positive and negative ion detector |
| 01/23/1991 | EP0409362A2 Method of operating an ion trap |
| 01/22/1991 | US4987335 Secondary electron multiplier |
| 01/22/1991 | US4986110 Method and apparatus for taking samples of and for analyzing hydrocarbons |
| 01/16/1991 | EP0408487A2 Mass spectrometer method and apparatus for analyzing materials |
| 01/16/1991 | EP0408288A1 An ion mirror for a time-of-flight mass spectrometer |
| 01/16/1991 | EP0407539A1 Plasma mass spectrometer. |
| 01/15/1991 | US4985626 Quadrupole mass filter for charged particles |
| 01/15/1991 | US4985625 Transfer line for mass spectrometer apparatus |
| 01/09/1991 | EP0407030A1 Method and apparatus for analysing solid samples |
| 01/08/1991 | US4983831 Time-of-flight analysis method with continuous scanning and analyzer to implement this method |
| 01/08/1991 | US4983829 Method for analyzing gases according to the counter flow principle |
| 01/02/1991 | EP0404934A1 A method of preparing samples for mass analysis by desorption from a frozen solution. |
| 01/01/1991 | US4982097 Vaporization device for continuous introduction of liquids into a mass spectrometer |
| 01/01/1991 | US4982088 Method and apparatus for highly sensitive spectroscopy of trapped ions |
| 01/01/1991 | US4982087 ICR ion trap |
| 12/30/1990 | WO1991000612A1 Charge sensor and spectrometers incorporating it |
| 12/27/1990 | EP0403965A2 MS-MS-flight time mass spectrometer |
| 12/26/1990 | CN1010979B Electron spectrometer |
| 12/25/1990 | US4980057 Apparatus for mass spectrometric analysis of liquid chromatographic fractions |
| 12/20/1990 | DE3928836A1 Mass spectrometer - has channel plate with entry plate that can be adjusted to remove unwanted ions |
| 12/19/1990 | EP0402827A1 Device for signal treatment received by an electron multiplier |
| 12/18/1990 | US4978852 Hadamard transform measurement of MSN Fourier-transform mass spectra |
| 12/18/1990 | US4977785 Method and apparatus for introduction of fluid streams into mass spectrometers and other gas phase detectors |
| 12/18/1990 | CA1278107C Mass spectrometers |
| 12/12/1990 | EP0401658A1 Scanning tunneling microscope with arrangements for detecting electrons coming from the sample |
| 12/11/1990 | US4977320 Electrospray ionization mass spectrometer with new features |
| 12/07/1990 | WO1990015658A1 Miniaturized mass spectrometer system |
| 12/04/1990 | US4975577 Method and instrument for mass analyzing samples with a quistor |
| 12/04/1990 | US4975576 Method and apparatus for measuring concentrations of gas mixtures |
| 12/04/1990 | CA1277446C Method and apparatus for dissociating ions by electron impact |
| 12/02/1990 | WO1990015434A1 Charged-particle energy analyzer and mass spectrometer incorporating it |
| 12/02/1990 | WO1990015433A1 Mass spectrometer having a multichannel detector |