Sample preconcentrator

A pre-concentrator, sample technology, applied in sampling, instruments, scientific instruments, etc., can solve problems such as the limitation of effective concentration of trace volatile organic compounds, and achieve the effect of improving decomposability and reducing differences
CN102612643AActive Publication Date: 2012-07-25BIONEER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BIONEER
Publication Date
2012-07-25

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Abstract

There is provided a sample preconcentrator. The sample preconcentrator in which a sample gas injection port is coupled to a dried gas supply source and a gas analysis system to concentrate a sample gas comprises a sample concentrating unit containing an absorbent that is composed of carbon nanotube-metal nanocomplexes; a conduit switching valve for selectively coupling the sample gas injection port to the dried gas supply source and the gas analysis system and controlling the absorption and desorption of the sample gas from the sample concentrating unit; and a plurality of conduits for connecting the sample gas injection port, the dried gas supply source, the gas analysis system, the sample concentrating unit and the conduit switching valve.
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Description

technical field

[0001] The present invention relates to a sample preconcentrator for adsorbing and desorbing a gas sample, and more particularly, to a sample preconcentrator comprising an adsorbent composed of carbon nanotube-metal nanocomplex. Background technique

[0002] Gas sensors are widely used in applications such as industrial safety, environmental monitoring systems, food industry, medical services, and other fields. A type of gas sensor that only senses a specific gas is mainly used in the prior art, however in recent years electronic nose technology has been developed in which gas sensors are arranged in an array pattern to sense a response pattern to odors and odors.

[0003] In order to analyze gas samples, such as volatile organic compounds (VOCs), using the above-mentioned gas analysis systems, such as gas sensors, electronic noses, and gas chromatography, a sample preconcentrator that can adsorb and desorb the gas sample is required.

[0004] As an example ...

Claims

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