CN209014526U - Gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis - Google Patents
Gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis Download PDFInfo
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- CN209014526U CN209014526U CN201821702757.5U CN201821702757U CN209014526U CN 209014526 U CN209014526 U CN 209014526U CN 201821702757 U CN201821702757 U CN 201821702757U CN 209014526 U CN209014526 U CN 209014526U
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Abstract
The utility model relates to a kind of gas chromatography-mass spectrometries for Organic Contamination of Groundwater signature analysis, comprising: separator, vacuum system, sampling system, ion source, mass analyzer, detector, work station and control system, separator is connected with vacuum system, vacuum system includes fore vacuum and rear class vacuum, fore vacuum and sampling system, ion source, mass analyzer, detector, work station is connected, rear class vacuum and sampling system, ion source, mass analyzer, detector is connected, control system and sampling system, ion source, mass analyzer, detector, work station is connected, the ultraviolet wavelength 254nm that detector uses, fluorescence Ex wavelength 294nm, Em wavelength 430nm, test result can be made more accurate and reliable using this utility model, meet the organic dirt of underground water The needs of investigation are contaminated, and the efficiency of analysis processing can be effectively improved.
Description
Technical field
The utility model relates to a kind of gas chromatography-mass spectrometry, more particularly to one kind are special for Organic Contamination of Groundwater
Levy the gas chromatography-mass spectrometry of analysis.
Background technique
With the increase of mankind's activity, various pollutions cause harmful substance in underground water to increase year by year, quality of groundwater by
Gradually decline, has seriously endangered drinking water safety.Mononuclear aromatics, halogenated hydrocarbons, organochlorine pesticide pollution in China's underground water are not
Hold and ignores.Existing research shows that " three-induced effect " (carcinogenic, teratogenesis, mutagenesis) that many organic pollutants have, right
Human health seriously affects.Therefore, the Analysis of Organic Pollutant research for carrying out underground water, finds out underground water pollution situation, is water
Source protection and prevention and cure of pollution provide scientific basis, provide basic data for guarantee, to raising people's drinking water quality
It is of great significance, and plays the role of to later development organic contamination investigation work guiding.
Summary of the invention
In order to Organic Contamination of Groundwater status be investigated and analysed, acquired the testing result of groundwater sample, to underground
Water organic contamination feature is studied, and determines science, reliable Organic Contamination of Groundwater detection method, and the utility model provides
A kind of gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis comprising: separator, vacuum system,
Sampling system, ion source, mass analyzer, detector, work station and control system, it is characterised in that: separator and vacuum
System is connected, and vacuum system includes fore vacuum and rear class vacuum, and fore vacuum is mechanical pump, and rear class vacuum is turbo-molecular
Pump；Fore vacuum is connected with sampling system, ion source, mass analyzer, detector, work station, rear class vacuum and sampling system,
Ion source, mass analyzer, detector are connected, control system and sampling system, ion source, mass analyzer, detector, work
It stands and is connected；The ultraviolet wavelength 254nm, fluorescence Ex wavelength 294nm, Em wavelength 430nm that detector uses.
Preferably, ion source includes heating system, and temperature range is 110 DEG C -350 DEG C；
Preferably, detector is electron capture detector；
Preferably, detector also has the signal amplifier of high bandwidth；
Preferably, sampling system is autosampler；
Preferably, work station includes control module and data processing module；
It preferably, further include purge and trap device.Inert gas (such as He) is passed through water sample, water sample through purge and trap device
In volatile organic matter VOCs and labeled compound purged out, the sample component purged out is trapped in one equipped with suitable
In the trap tube of suitable adsorbent.After the completion of purging program, trap tube is heated and uses helium blowback, desorbs the sample being adsorbed
Component enters mass analyzer.
Compared with prior art, test result can be made more accurate and reliable using this utility model, while guaranteed a variety of
Volatile organic matter can measure simultaneously, guarantee that the qualitative, quantitative of volatile organic matter is more accurate, detection limit is lower, contentedly
It is lauched the needs of organic contamination investigation；The efficiency of analysis processing can be effectively improved using autosampler sample introduction.
Detailed description of the invention
Fig. 1 is the gas chromatography-mass spectrometry system group for Organic Contamination of Groundwater signature analysis of the utility model
At schematic diagram；
It is as shown in the figure: 1, separator, 2, vacuum system, 3, sampling system, 4, ion source, 5, mass analyzer, 6, inspection
Survey device, 7, work station, 8, control system.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
As shown in Figure 1, the utility model provides a kind of gaschromatographic mass spectrometry for Organic Contamination of Groundwater signature analysis
Combined instrument comprising: separator 1, vacuum system 2, sampling system 3, ion source 4, mass analyzer 5, detector 6, work
Stand 7 and control system 8, it is characterised in that: separator 1 is connected with vacuum system 2, vacuum system 2 include fore vacuum and after
Grade vacuum, fore vacuum are mechanical pump, and rear class vacuum is turbomolecular pump；Fore vacuum and sampling system 3, ion source 4, quality
Analyzer 5, detector 6, work station 7 are connected, rear class vacuum and sampling system 3, ion source 4, mass analyzer 5,6 phase of detector
Even, control system 8 is connected with sampling system 3, ion source 4, mass analyzer 5, detector 6, work station 7；What detector 6 used
Ultraviolet wavelength 254nm, fluorescence Ex wavelength 294nm, Em wavelength 430nm.
Preferably, ion source 4 includes heating system, and temperature range is 110 DEG C -350 DEG C；
Preferably, detector 6 is electron capture detector；
Preferably, detector 6 also has the signal amplifier of high bandwidth；
Preferably, sampling system 3 is autosampler；
Preferably, work station 7 includes control module and data processing module；
It preferably, further include purge and trap device.Inert gas (such as He) is passed through water sample, water sample through purge and trap device
In volatile organic matter VOCs and labeled compound purged out, the sample component purged out is trapped in one equipped with suitable
In the trap tube of suitable adsorbent.After the completion of purging program, trap tube is heated and uses helium blowback, desorbs the sample being adsorbed
Component enters mass analyzer.
By acquisition to Shijiazhuang City Organic Contamination of Groundwater sample, detection, water quality assessment the result shows that, Shijiazhuang City
The total recall rate of Organic Contamination of Groundwater component is higher, and exceeding standard rate is lower.There are 22 groups of samples at least in 23 groups of samples of acquisition
There is an organic contamination component to be detected, total recall rate 95.65% is wanted using autosampler sample introduction according to quality control
It asks, can analyze 25 groups of samples daily.
Compared with prior art, test result can be made more accurate and reliable using this utility model, while guaranteed a variety of
Volatile organic matter can measure simultaneously, guarantee that the qualitative, quantitative of volatile organic matter is more accurate, detection limit is lower, contentedly
It is lauched the needs of organic contamination investigation；The efficiency of analysis processing can be effectively improved using autosampler sample introduction.
Claims (7)
1. a kind of gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis comprising: separator, vacuum
System, sampling system, ion source, mass analyzer, detector, work station and control system, it is characterised in that: separator with
Vacuum system is connected, and vacuum system includes fore vacuum and rear class vacuum, and fore vacuum is mechanical pump, and rear class vacuum is turbine point
Son pump；Fore vacuum is connected with sampling system, ion source, mass analyzer, detector, work station, rear class vacuum and sample introduction system
System, ion source, mass analyzer, detector are connected, control system and sampling system, ion source, mass analyzer, detector,
Work station is connected, the ultraviolet wavelength 254nm, fluorescence Ex wavelength 294nm, Em wavelength 430nm that the detector uses.
2. the gas chromatography-mass spectrometry according to claim 1 for Organic Contamination of Groundwater signature analysis, special
Sign is: the ion source includes heating system, and temperature range is 110 DEG C -350 DEG C.
3. the gas chromatography-mass spectrometry according to claim 1 for Organic Contamination of Groundwater signature analysis, special
Sign is: the detector is electron capture detector.
4. the gas chromatography-mass spectrometry according to claim 3 for Organic Contamination of Groundwater signature analysis, special
Sign is: the detector also has the signal amplifier of high bandwidth.
5. the gas chromatography-mass spectrometry according to claim 1 for Organic Contamination of Groundwater signature analysis, special
Sign is: the sampling system is autosampler.
6. the gas chromatography-mass spectrometry according to claim 1 for Organic Contamination of Groundwater signature analysis, special
Sign is: the work station includes control module and data processing module.
7. the gas chromatography combined with mass spectrometry according to claim 1-6 for Organic Contamination of Groundwater signature analysis
Instrument, it is characterised in that: further include purge and trap device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702757.5U CN209014526U (en) | 2018-10-20 | 2018-10-20 | Gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821702757.5U CN209014526U (en) | 2018-10-20 | 2018-10-20 | Gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209014526U true CN209014526U (en) | 2019-06-21 |
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| CN201821702757.5U Active CN209014526U (en) | 2018-10-20 | 2018-10-20 | Gas chromatography-mass spectrometry for Organic Contamination of Groundwater signature analysis |
Country Status (1)
| Country | Link |
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| CN (1) | CN209014526U (en) |
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2018
- 2018-10-20 CN CN201821702757.5U patent/CN209014526U/en active Active
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