A mass spectrometry device includes a sample stage, an irradiator, a MCP, a fluorescent body, an imager, and a controller. The irradiator irradiates a sample with an energy beam to ionize a plurality of components of the sample while maintaining position information of the plurality of components. The MCP emits electrons in accordance with an ionized sample. The fluorescent body emits fluorescent light in accordance with the electrons. The imager has a shutter mechanism configured to be capable of switching an open state and a close state. The controller controls an opening and closing operation of the shutter mechanism. The controller allows the imager to image the fluorescent light corresponding to each of the plurality of components by performing the opening and closing of the shutter mechanism at a timing for each of the components.

A mass spectrometry device includes a sample stage, an irradiator, a MCP, a fluorescent body, an imager, and a controller. The irradiator irradiates a sample with an energy beam to ionize a plurality of components of the sample while maintaining position information of the plurality of components. The MCP emits electrons in accordance with an ionized sample. The fluorescent body emits fluorescent light in accordance with the electrons. The imager has a shutter mechanism configured to be capable of switching an open state and a close state. The controller controls an opening and closing operation of the shutter mechanism. The controller allows the imager to image the fluorescent light corresponding to each of the plurality of components by performing the opening and closing of the shutter mechanism at a timing for each of the components.

A method of predicting whether an MDS patient has a good or poor prognosis uses a general purpose computer configured as a classifier and mass-spectrometry data obtained from a blood-based sample. The classifier assigns a classification label of either Early or Late (or the equivalent) to the patient's sample. Patients classified as Early are predicted to have a poor prognosis or worse survival whereas those patients classified as Late are predicted to have a relatively better prognosis and longer survival time. The groupings demonstrated a large effect size between groups in Kaplan-Meier analysis of survival. Most importantly, while the classifications generated were correlated with other prognostic factors, such as IPSS score and genetic category, multivariate and subgroup analysis showed that they had significant independent prognostic power complementary to the existing prognostic factors.

A mass spectrometer is disclosed wherein highly charged fragment ions resulting from Electron Transfer Dissociation fragmentation of parent ions are reduced in charge state within a Proton Transfer Reaction cell by reacting the fragment ions with a neutral superbase reagent gas such as Octahydropyrimidolazepine.

Disclosed herein are systems and methods for mass spectrometry using laserspray ionization (LSI). LSI can create multiply-charged ions at atmospheric pressure for analysis and allows for analysis of high molecular weight molecules including molecules over 4000 Daltons. The analysis can be solvent-based or solvent-free. Solvent-free analysis following LSI allows for improved spatial resolution beneficial in surface and/or tissue imaging.

The present disclosure describes embodiments directed to a bubble based ion source system comprising an ion source configured to generate a plurality of ions, an ion channel, an electrode, and/or any other components. The ion source can include a container at least partially comprising a solvent or solution, a bubble generator coupled to the container configured to generate a plurality of bubbles within the solvent, and/or any other component. The ion channel can receive ions that are generated based on solvent from the bubbles.

The invention generally relates to systems and methods for sample analysis using swabs. In certain aspects, the invention provides systems that include a probe having a conductive proximal portion coupled to a porous material at a distal portion of the probe that is configured to retain a portion of a sample that has contacted the porous material, and a mass spectrometer having an inlet. The system is configured such that the porous material at a distal portion of the probe is aligned over the inlet of the mass spectrometer.

A method of analysis using mass spectrometry and/or ion mobility spectrometry is disclosed comprising: (a) using a first device to generate smoke, aerosol or vapour from a target in vitro or ex vivo cell population; (b) mass analysing and/or ion mobility analysing said smoke, aerosol or vapour, or ions derived therefrom, in order to obtain spectrometric data; and (c) analysing said spectrometric data in order to identify and/or characterise said target cell population or one or more cells and/or compounds present in said target cell population.

A method of analysis using mass spectrometry and/or ion mobility spectrometry is disclosed comprising: (a) using a first device to generate smoke, aerosol or vapour from a target in vitro or ex vivo cell population; (b) mass analysing and/or ion mobility analysing said smoke, aerosol or vapour, or ions derived therefrom, in order to obtain spectrometric data; and (c) analysing said spectrometric data in order to identify and/or characterise said target cell population or one or more cells and/or compounds present in said target cell population.

Technology for analyzing collections of substance samples. Systems in accordance with the disclosure can include one or more sample handlers, sample capture devices, mass analysis instruments, and controllers; the controllers being operative, in accordance with instructions received from at least one of an operator input device and machine-interpretable instructions stored in memory accessible by the controller, to generate signals configured to cause the sample handler to collectively retrieve from a sample source a plurality of samples of one or more substances, and deliver the plurality of collected samples to the at least one sample capture device; cause the sample capture device to independently capture at least one of the collectively retrieved samples delivered by the sample handler, and transfer the at least one captured sample to a mass analysis instrument; and cause the mass analysis instrument to ionize and detect one or more particles of the transferred treated sample.