The sample introduction device includes a nebulizer that atomizes a sample liquid; a spray chamber that has one end into which a spray port part of the nebulizer is inserted and the other end from which at least a part of liquid droplets of the sample liquid sprayed from the spray port part is discharged to an outside; and a heating electromagnetic wave radiation unit that is arranged outside the spray chamber, wherein the heating electromagnetic wave radiation unit performs radiation of heating electromagnetic waves from the outside of the spray chamber toward at least a part of the spray chamber other than a part into which the spray port part of the nebulizer is inserted.

The sample introduction device includes a nebulizer that atomizes a sample liquid; a spray chamber that has one end into which a spray port part of the nebulizer is inserted and the other end from which at least a part of liquid droplets of the sample liquid sprayed from the spray port part is discharged to an outside; and a heating electromagnetic wave radiation unit that is arranged outside the spray chamber, wherein the heating electromagnetic wave radiation unit performs radiation of heating electromagnetic waves from the outside of the spray chamber toward at least a part of the spray chamber other than a part into which the spray port part of the nebulizer is inserted.

The present disclosure discloses a silicon nanowire chip and silicon nanowire chip-based mass spectrometry detection method. The detection method includes the following steps: step 1 of manufacturing a silicon nanowire chip, comprising: subjecting a monocrystalline silicon wafer to a surface washing pretreatment, a metal-assisted etching and a post-alkali etching to obtain a silicon nanowire chip with a tip, and performing a surface chemical modification or a nanomaterial modification on the silicon nanowire chip; step 2 of evaluating mass spectrometry performance of the silicon nanowire chip; and step 3 of performing a tip-contact sampling and in-situ ionization mass spectrometry detection.

The gas measurement device includes a plurality of electrodes arranged apart from each other so as to have a gap through which gas can pass, each electrode connected to a power source for applying voltage or current, and a gas sensor configured to detect gas molecules passing between the electrodes.

The gas measurement device includes a plurality of electrodes arranged apart from each other so as to have a gap through which gas can pass, each electrode connected to a power source for applying voltage or current, and a gas sensor configured to detect gas molecules passing between the electrodes.

An ionization device includes an ion formation section configured to ionize an analyte via a corona discharge; and a transfer section configured to transfer the ionized analyte to a mass spectrometry apparatus. The ion formation section and the transfer section are partitioned by one electrode of a pair of electrodes that generate the corona discharge. The one electrode has an opening.

Methods, devices, and systems for performing nebulization of a sample from a fluid channel of a microfluidic device are described. The systems or devices disclosed herein may comprise microfluidic devices that comprise a gas channel used for nebulization of the sample at a fluid outlet of the microfluidic device. In some instances, the disclosed devices may be designed to perform isoelectric focusing followed by further characterization of the separated analytes using electrospray ionization coupled with nebulization to introduce the samples into a mass spectrometer. The disclosed methods, devices, and systems provide for fast, accurate separation and characterization of protein analyte mixtures or other biological molecules by isoelectric point.

The present invention relates to apparatus for in real time detecting biological particles and non-biological particles in the atmosphere, the apparatus comprising: an impactor adapted to sort the biological particles and non-biological particles absorbed from the outside by size; a charger adapted to charge the biological particles and non-biological particles sorted by means of the impactor to specific charge (positive or negative charge); a separator adapted to introduce the biological particles and non-biological particles charged by the charger thereinto and to sort the biological particles and non-biological particles charged to different charge quantities from each other; and a particle measurement sensor adapted to measure the concentrations of the particles discharged from an outlet.

The present invention relates to apparatus for in real time detecting biological particles and non-biological particles in the atmosphere, the apparatus comprising: an impactor adapted to sort the biological particles and non-biological particles absorbed from the outside by size; a charger adapted to charge the biological particles and non-biological particles sorted by means of the impactor to specific charge (positive or negative charge); a separator adapted to introduce the biological particles and non-biological particles charged by the charger thereinto and to sort the biological particles and non-biological particles charged to different charge quantities from each other; and a particle measurement sensor adapted to measure the concentrations of the particles discharged from an outlet.

There is provided a gas analyzer apparatus that analyzes inflowing sample gas. The gas analyzer apparatus includes a filter unit that filters the sample gas, a detector unit that detects the result of filtering, a housing that houses these elements, and a control unit that controls the respective potentials of these elements. The control unit includes a cleaning control unit that sets the respective potentials of the filter unit, the detector unit, and the housing to cleaning potentials that draws in, as plasma for cleaning purposes, process plasma from a source that supplies the sample gas or plasma generated by a plasma generation unit.