A system for analyzing a gas mixture is provided. The system includes an enclosure inlet. A moisture trap assembly is coupled to the enclosure inlet. The moisture trap assembly removes excess moisture from a sample at the enclosure inlet. A testing section is coupled to the moisture trap assembly for detecting one or more compounds from the sample.

The present disclosure relates to compositions containing a mixture of e.g. one or more or two or more compounds released by a citrus plant in quantities that are altered during infection with Huanglongbing disease, where the composition is an attractant for psyllids. Furthermore, compositions contain one or more active compounds which constitute a synthetic chemical blend for attracting psyllids. Active compounds in the compositions may include, for example, one or more compounds selected from linalool, tridecane, 4-OH-4-Me-2-pentanone, hexacosane, 1-tetradecene, tricosane, geranial, tetradecanal, phenylacetaldehyde, methyl salicylate, cumacrene, (E)-beta-ocimene, hexadecanol, and geranyl acetone.

A system and method for chemical analysis are described herein. The system includes a probe, a sample collection cartridge, and a chemical analyzer. The probe is configured to collect the optimal amount of sample for a future analysis and to store this chemical sample in the sample collection cartridge. The probe also collects sample data. The chemical analyzer is configured to determine the optimal analysis settings based on the sample data and analyze the chemical sample stored in the sample collection cartridge based on the optimal analysis settings.

A method of sampling ingredients of an oil-bearing inclusion includes a) providing a first container and a second container, an external diameter of the first container being smaller than an internal diameter of the second container, and the first and second containers both being transparent; b) adding a solvent into the first container and sealing said first container; c) adding an oil-bearing inclusion sample into the second container, and putting the first container that contains the solvent and is sealed in step b) into the second container; and d) using a laser to ablate the oil-bearing inclusion sample contained in the second container that is sealed in step c), and using the laser to break an end portion of the first container close to the sample on condition that the second container is maintained complete, so as to allow the solvent in the first container to enter the second container.

A polyhydric phenol resin is provided. The polyhydric phenol resin comprises a polyhydric phenol resin component and a first component. When the polyhydric phenol resin is characterized in a high-performance liquid chromatography (HPLC), the first component is eluted at a retention time ranging from 27.1 minutes to 28.0 minutes, and based on the total area of the chromatographic peaks of the polyhydric phenol resin, the area percentage of the chromatographic peak of the first component at the corresponding retention time in the spectrum ranges from 1.0% to 20%.

The present invention provides a snake venom thrombin marker peptide of Agkistrodon Halys Pallas and an application of the snake venom thrombin-like enzyme in identifying species of Hemocoagulase for Injection. The application includes the following steps of: dissolving a to-be-detected sample and a reference substance of the marker peptide respectively to prepare a test solution and a reference solution, and conducting alkylation reduction on the test solution and the reference solution with dithiothreitol and iodoacetamide; after diluting products with an ammonium bicarbonate solution, adding enzyme for hydrolysis; and after enzymolysis is finished, conducting centrifugation at a high speed, and injecting a supernatan into a liquid chromatography-mass spectrometer for analysis. This method is simple, convenient and rapid, is strong in specificity, fills the gap in identifying the source of species of the snake venom thrombin-like enzyme of Agkistrodon Halys Pallas and improves the quality control level.

Disclosed are methods and devices for analyzing aerosol particles in exhaled breath using diagnostic tools that enable rapid, low cost and autonomous point of care assays for several diseases including respiratory tract diseases. Disclosed are methods and devices for capturing exhaled breath aerosols in a packed bed column and analyzing exhaled captured breath aerosols for tuberculosis diagnosis.

The present invention relates to a real-time automatic analysis device for an organic contaminant in water, the device having: an analysis apparatus comprising a solid phase micro-extraction device and a gas chromatography/mass spectrometry analysis device that have been traditionally used; a heating block; a sample bottle; a discharge unit; and a control unit. While using an analysis apparatus, being traditionally used, as it is, the real-time automatic analysis device for an organic contaminant in water accurately and quickly identifies a point of generation of a high-concentration organic contaminant by supplying a sample consecutively and in real time, takes follow-up measures, and easily performs a sensory analysis as well as a chemical analysis.

A display area 60 of a display unit of a mass spectrometer shows a result of tuning. The display area 60 includes: a tuning-item displaying section 62 configured to display all tuning items and a result of whether each tuning item has been tuned; and an analyzable-condition displaying section 63 configured to display a condition under which an analysis is possible based on the result. The tuning items may be displayed respectively and individually. Alternatively, the tuning items may be displayed in a grouped manner with a plurality of tuning items in a group. Consequently, a user knows, at a glance, whether the tuning necessary for an analysis that the user intends to perform has been performed. If a necessary tuning item has not been tuned, the user immediately starts to tune (only) the tuning item. Further, a user immediately knows in a current state of tuning whether the analysis that the user intends to perform is possible. Therefore, when the analysis is possible, the user can start the analysis. When the analysis is impossible, the user can tune only the tuning item that has not been tuned and is displayed on the tuning-item displaying section 62.

A pre-concentration device is provided for a gas analysis system (10) for collecting molecular contamination in a vacuum environment (11). The pre-concentration device (13) comprises a hollow element (15) having an entrance opening (20) for receiving molecules from the vacuum environment (11) in a collection phase, a gas outlet for transferring collected molecules to a vacuum compatible detector or second preconcentration device in a transfer phase. The device has an inner wall for adsorbing molecules in the collection phase and desorbing molecules in the transfer phase. The device has a filler element (14) that is movable from a first position outside the hollow element in the collection phase to a second position inside the hollow element in the transfer phase which second position leaves open a transfer channel to the gas outlet along the inner wall. Advantageously, the device enables transferring of the organic or inorganic contaminants collected in the device under vacuum conditions, and requires a minimal amount of ultra pure gas for the transport of the contaminants to a detector or further a concentration device, which lowers the lower limit of detection.