Special mass spectrometer for online detection of volatile organic compounds

An organic compound and mass spectrometer technology, applied in the field of chemical analysis, can solve the problems of difficult removal of moisture, complex enrichment of analytes, and low concentration of analytes, and achieve the effects of strong practicability, simple detection operation, and convenient use
CN103512943AInactive Publication Date: 2014-01-15JILIN WEIYUAN TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JILIN WEIYUAN TECH
Publication Date
2014-01-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a special mass spectrometer for online detection of volatile organic compounds. The special mass spectrometer comprises a host, a sample connector, a gas path connector, a sample feeding unit, a vacuum unit, an ion source unit, a mass analyzer unit, a detector unit, a microprocessor unit, a spectrogram database and a touch screen liquid crystal display, wherein online continuous sample feeding can be realized by the sample feeding unit. After a sample is processed and analyzed under the control of the microprocessor unit, a detection result is compared with the spectrogram database and then a comparison result is displayed on the touch screen liquid crystal display. The special mass spectrometer can be used for online trace detection of a total volatile organic compound (TVOC).
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Description

technical field

[0001] The invention belongs to the field of chemical analysis, and relates to a simple, accurate and rapid online trace detection system for volatile organic compounds (TVOC), in particular to an on-line detection system for volatile organic compounds (TVOC) in surface water or drinking water. Trace detection instruments. Background technique

[0002] Mass spectrometry is an analysis method that converts the sample into moving gaseous ions, separates them according to the mass-to-charge ratio (the ratio of the mass of the Mass to Charge Ratio ion to the charge, abbreviated as M / Z) and records its information. The obtained results are expressed in the form of a graph to form a mass spectrum. Mass spectrometry is accomplished by means of a mass spectrometer. A mass spectrometer generally consists of an ion source, a mass analyzer, a detector, a vacuum system, a data processing system, and a sampling system. The concentration of volatile organic compounds (T...

Claims

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