An ion analysis device 1 configured to generate and analyze product ions from precursor ions derived from a sample component includes: a reaction chamber 132 into which the precursor ions are introduced; a radical emitter 134 made of a predetermined kind of metal and disposed in the reaction chamber or a space communicating with the reaction chamber, at least a part of a surface of the radical emitter being oxidized or nitrided; a heating unit 20 configured to heat the radical emitter to a predetermined temperature; and separation detection units 135 and 136 configured to separate and detect, according to at least one of a mass-to-charge ratio and an ion mobility, product ions generated from the precursor ions by a reaction with radicals emitted from the radical emitter heated to the predetermined temperature.

An ion analysis device 1 configured to generate and analyze product ions from precursor ions derived from a sample component includes: a reaction chamber 132 into which the precursor ions are introduced; a radical emitter 134 made of a predetermined kind of metal and disposed in the reaction chamber or a space communicating with the reaction chamber, at least a part of a surface of the radical emitter being oxidized or nitrided; a heating unit 20 configured to heat the radical emitter to a predetermined temperature; and separation detection units 135 and 136 configured to separate and detect, according to at least one of a mass-to-charge ratio and an ion mobility, product ions generated from the precursor ions by a reaction with radicals emitted from the radical emitter heated to the predetermined temperature.

Disclosed are systems and methods to provide rapid and autonomous detection of analyte particles in gas and liquid samples. Disclosed are methods and devices for identifying biological aerosol analytes using MALDI-MS and chemical aerosol analytes using LDI and MALDI-MS using time-of-flight mass spectrometry (TOFMS).

The present invention provides a method for analyzing a sample containing metal fine particles with an inductive coupling plasma mass spectrometer. The method enables analysis of the sample without the need of standard metal fine particles. Specifically, the present invention relates to a method for analyzing metal fine particles in liquid by use of an inductive coupling plasma mass spectrometer. In the method, the analysis apparatus is provided with a standard solution introduction apparatus including a standard solution storage unit for storing a standard solution containing a specific element in a known concentration, a syringe pump for suctioning and discharging the standard solution, and a solution introduction unit having a standard solution nebulizer and a standard solution spray chamber that are supplied with the standard solution, the standard solution is directly supplied to the standard solution nebulizer at a flow rate of 3 μL/min or less.

A portable ion mobility spectrometry apparatus (1) for detecting an aerosol and a method for using the apparatus. The apparatus comprises an ion mobility spectrometer (3); a portable power source (5) carried by the apparatus for providing power to the apparatus (1); an inlet (7) for collecting a flow of air to be tested by the spectrometer (3); a heater (4) configured to heat the air to be tested to vapourise an aerosol carried by the air and a controller (2) configured to control the spectrometer (3) to obtain samples from the heated air, wherein the controller is configured to increase a heat output from the heater (4) for a selected time period before obtaining samples from the heated air.

A portable ion mobility spectrometry apparatus (1) for detecting an aerosol and a method for using the apparatus. The apparatus comprises an ion mobility spectrometer (3); a portable power source (5) carried by the apparatus for providing power to the apparatus (1); an inlet (7) for collecting a flow of air to be tested by the spectrometer (3); a heater (4) configured to heat the air to be tested to vapourise an aerosol carried by the air and a controller (2) configured to control the spectrometer (3) to obtain samples from the heated air, wherein the controller is configured to increase a heat output from the heater (4) for a selected time period before obtaining samples from the heated air.

A vaporizer includes an outer tube configured to receive a flow of heated gas and an inner tube disposed at least partially within the outer tube. The inner tube is spaced apart from the outer tube such that the flow of heated gas is channeled through an annular space therebetween. The vaporizer also includes a crucible disposed at least partially within the inner tube. The crucible is extendable and retractable relative to the inner tube and within the outer tube. The crucible is configured to hold a molten metal such that a surface area of the molten metal exposed to the flow of heated gas is adjustable based on the position of the crucible relative to the inner tube. A heater is configured to vaporize the molten material and the vapor mixes with the flow of heated gas.

One mode is a method for the structural analysis of an organic compound by MALDI mass spectrometry, including: a sample preparation process (S1) which includes preparing a sample by mixing a specimen containing an organic compound to be analyzed with a predetermined matrix at a mixture ratio within a range from 1:5 to 1:5000 in molar ratio; a mass spectrometry process (S3) which includes irradiating the prepared sample with a laser beam having a spot size equal to or smaller than 15 μm to generate ions originating from a component of the specimen in the sample, and performing a mass spectrometric analysis of the generated ions; and an analyzing process (S4) which includes detecting, from a mass spectrum acquired in the mass spectrometry process, ions including product ions resulting from in-source decay, and estimating the structure of the organic compound to be analyzed based on information concerning the ions.

The present application discloses a portable odor detector and a method for operating the same, especially for a disposable hygiene product or its raw materials, comprising a housing, a display screen, a battery assembly, a circuit board and a sampling unit, wherein the sampling unit comprises a heat-resistant housing in which a detection chamber is defined, an odor sensor is arranged in the detection chamber.

The present application discloses a portable odor detector and a method for operating the same, especially for a disposable hygiene product or its raw materials, comprising a housing, a display screen, a battery assembly, a circuit board and a sampling unit, wherein the sampling unit comprises a heat-resistant housing in which a detection chamber is defined, an odor sensor is arranged in the detection chamber.