Abstract: The invention relates to a method and an apparatus for determining a spectrum of a sample comprising one or more constituent parts on the basis of a time the one or more constituent parts require to undergo a physical process or chemical process.

Abstract: An apparatus for mass spectrometry comprises a portion generator (10) for creating localized analyte portions in synchronization with trigger pulses, a transfer system (20) coupled to the portion generator (10) for transporting the localized analyte portions, a plasma ionizer unit (30) coupled to the transfer system (20) for atomizing, vaporizing and ionizing received analyte portions with plasma, a mass analyzer (41) coupled to the plasma ionizer unit (30) for analyzing received analyte portions, the mass analyzer (41) comprising at least one detector, and a data acquisition electronics (50) connected to the at least one detector for acquiring signals (43) generated by the at least one detector. The apparatus further includes a signal delay device (60) for receiving the trigger pulses (11) and delivering delayed signals (61) corresponding to the trigger pulses to account for a delay experienced by the particles to be analyzed between portion generation and detection.

Abstract: A device for mass spectrometry comprises an ionization source, a mass analyzer fluidly coupled to the ionization source and an electronic data acquisition system for processing signals provided by the mass analyzer. The electronic data acquisition system comprises at least one analog-to-digital converter (10) producing digitized data from the signals obtained from the mass analyzer and a fast processing unit (47) receiving the digitized data from said analog-to-digital converter (10). The fast processing (47) unit is programmed to continuously, in real time inspect the digitized data for events of interest measured by the mass spectrometer; and the electronic data acquisition system is programmed to forward (23) the digitized data representing mass spectra relating to events of interest for further analysis and to reject the digitized data representing mass spectra not relating to events of interest.

Abstract: An apparatus for mass spectrometry comprises a portion generator (10) for creating localized analyte portions in synchronization with trigger pulses, a transfer system (20) coupled to the portion generator (10) for transporting the localized analyte portions, a plasma ionizer unit (30) coupled to the transfer system (20) for atomizing, vaporizing and ionizing received analyte portions with plasma, a mass analyzer (41) coupled to the plasma ionizer unit (30) for analyzing received analyte portions, the mass analyzer (41) comprising at least one detector, and a data acquisition electronics (50) connected to the at least one detector for acquiring signals (43) generated by the at least one detector. The apparatus further includes a signal delay device (60) for receiving the trigger pulses (11) and delivering delayed signals (61) corresponding to the trigger pulses to account for a delay experienced by the particles to be analyzed between portion generation and detection.

Abstract: The invention relates to a method and an apparatus for determining a spectrum of a sample comprising one or more constituent parts on the basis of a time the one or more constituent parts require to undergo a physical process or chemical process.

Abstract: A device for mass spectrometry comprises an ionization source, a mass analyzer fluidly coupled to the ionization source and an electronic data acquisition system for processing signals provided by the mass analyzer. The electronic data acquisition system comprises at least one analog-to-digital converter (10) producing digitized data from the signals obtained from the mass analyzer and a fast processing unit (47) receiving the digitized data from said analog-to-digital converter (10). The fast processing (47) unit is programmed to continuously, in real time inspect the digitized data for events of interest measured by the mass spectrometer; and the electronic data acquisition system is programmed to forward (23) the digitized data representing mass spectra relating to events of interest for further analysis and to reject the digitized data representing mass spectra not relating to events of interest.

Abstract: A method is provided for calibrating mass-to-charge ratio measurements obtained from a time-of-flight mass spectrometer used as a detector for a chromatographic system. The method can include introducing a calibrant material into the time-of-flight mass spectrometer after a sample is introduced to the chromatographic system, but before the analysis of the sample is complete, such that calibrant material and sample material are not present at the ion source of the mass spectrometer, contemporaneously, and back-flushing residual or leaking calibrant through a back-flush line and away from the mass spectrometer.