CN112858560A - Vehicle VOC tracing method - Google Patents
Vehicle VOC tracing method Download PDFInfo
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- CN112858560A CN112858560A CN202110136156.2A CN202110136156A CN112858560A CN 112858560 A CN112858560 A CN 112858560A CN 202110136156 A CN202110136156 A CN 202110136156A CN 112858560 A CN112858560 A CN 112858560A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000013077 target material Substances 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 239000012855 volatile organic compound Substances 0.000 description 54
- 238000001228 spectrum Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
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Abstract
A vehicle VOC tracing method comprises the following steps: performing VOC test on the whole vehicle, and determining the target VOC with the content exceeding the standard; placing the movable gas chromatograph-mass spectrometer in a vehicle, placing a sampling gun head on the surfaces of different parts in the vehicle in an SIM scanning mode to adsorb gas for spectrogram analysis, and obtaining VOC spectrograms corresponding to the different parts in the vehicle; comparing the intensity of VOC spectrograms corresponding to different parts in the vehicle, and determining target parts causing the content of target VOC to exceed the standard; disassembling the target part into different materials, respectively filling the different materials into different sampling bags with the same volume, and respectively filling high-purity nitrogen with the same volume into the different sampling bags; respectively carrying out spectrogram analysis on the gas in different sampling bags to obtain VOC spectrograms corresponding to the materials in the different sampling bags; and comparing the intensity of the VOC spectrogram corresponding to the materials in different sampling bags to determine the target material causing the target VOC content to exceed the standard. The time consumption of VOC tracing can be shortened and the method is not limited by regions.
Description
Technical Field
The embodiment of the application relates to the field of Volatile Organic Compound (VOC) detection, in particular to a complete vehicle VOC tracing method.
Background
With the improvement of living standard, people no longer satisfy the demand of riding instead of walk for automobiles, and more consumers pay more attention to the quality of air in the automobile. The good environment in the automobile not only can avoid body damage, but also can improve the driving comfort. Currently, harmful substances in the vehicle mainly come from VOCs, and the traditional VOC tracing method is as follows: through whole car VOC test, find out the high target VOC of content, then carry out the VOC test to all spare parts in the car one by one, find out the spare part that target VOC content is high, disassemble the spare part that target VOC content is high again to the material and carry out the VOC test, finally find out the material that target VOC content is high highest.
In practice, the entire process of the conventional VOC tracing method is found to be time-consuming, wherein the entire vehicle VOC test usually takes 4 days, the part VOC test usually takes 14 days, and the material VOC test usually takes 6 days, and a total of 24 days are usually required. Moreover, it can only be performed in a laboratory setting.
Disclosure of Invention
The embodiment of the application discloses a vehicle VOC tracing method, and aims to solve the problems that the whole process of the traditional VOC tracing method consumes long time and is limited by regions.
The vehicle VOC tracing method comprises the following steps:
performing VOC test on the whole vehicle, and determining the target VOC with the content exceeding the standard;
placing the movable gas chromatograph-mass spectrometer in a vehicle, placing a sampling gun head on the surfaces of different parts in the vehicle to adsorb gas when the movable gas chromatograph-mass spectrometer is in an SIM scanning mode, and performing spectrogram analysis on the adsorbed gas to obtain VOC spectrograms corresponding to the different parts in the vehicle;
comparing the intensity of VOC spectrograms corresponding to different parts in the vehicle to determine target parts with the target VOC content exceeding the standard caused by the different parts in the vehicle;
disassembling the determined target parts causing the standard exceeding of the target VOC content into different materials, respectively filling the different materials into different sampling bags with the same volume, and respectively filling high-purity nitrogen with the same volume into the different sampling bags;
respectively carrying out spectrogram analysis on the gas in the different sampling bags to obtain VOC spectrograms corresponding to the materials in the different sampling bags;
and comparing the intensity of the VOC spectrogram corresponding to the materials in the different sampling bags to determine the target material with the standard exceeding target VOC content caused by the different materials.
Compared with the prior art, the embodiment of the application has the following beneficial effects:
in the embodiment of the application, adopt movable gas chromatography-mass spectrometer to utilize SIM scanning mode (being single spectrum mode), can trace back the source to volatile organic compounds in the car in the short time, thereby can shorten the consuming time of VOC tracing back and do not receive the region restriction.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flowchart of a vehicle VOC tracing method disclosed in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application discloses a vehicle VOC tracing method, and aims to solve the problems that the whole process of the traditional VOC tracing method consumes long time and is limited by regions. The following detailed description is made with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a flowchart of a vehicle VOC tracing method disclosed in the embodiment of the present application. As shown in fig. 1, the method for tracing VOC of the entire vehicle disclosed in the embodiment of the present application includes the following steps:
101. and carrying out VOC test on the whole vehicle to determine the target VOC with the content exceeding the standard.
102. And placing the movable gas chromatograph-mass spectrometer into a vehicle, placing a sampling gun head on the surfaces of different parts in the vehicle to adsorb gas when the movable gas chromatograph-mass spectrometer is in an SIM scanning mode, and performing spectrogram analysis on the adsorbed gas to obtain VOC spectrograms corresponding to the different parts in the vehicle.
Among them, the portable gas chromatograph/mass spectrometer is also called a portable gas chromatograph/mass spectrometer.
103. And comparing the intensity of the VOC spectrograms corresponding to the different parts in the vehicle to determine the target parts with the standard exceeding target VOC content caused by the different parts in the vehicle.
In some embodiments, the VOC spectrums corresponding to different parts in the vehicle may also be wirelessly transmitted to an external analysis device, and the external analysis device compares the intensities of the VOC spectrums corresponding to different parts in the vehicle to determine a target part with an excessive target VOC content caused by different parts in the vehicle.
For example, the intensity of the VOC spectrogram corresponding to the different parts in the vehicle may be compared, and some of the different parts in the vehicle whose intensity exceeds a set threshold may be determined as the target parts causing the target VOC content to exceed the standard. That is, the number of the target component may be one or more, and the embodiment of the present application is not limited. The set threshold may be set according to actual needs, and the embodiment of the present application is not limited.
104. And disassembling the determined target parts causing the standard exceeding of the target VOC content into different materials, respectively filling the different materials into different sampling bags with the same volume, and respectively filling high-purity nitrogen with the same volume into the different sampling bags.
105. And respectively carrying out spectrogram analysis on the gas in the different sampling bags to obtain VOC spectrograms corresponding to the materials in the different sampling bags.
106. And comparing the intensity of the VOC spectrogram corresponding to the materials in the different sampling bags to determine the target material with the standard exceeding target VOC content caused by the different materials.
For example, the intensity magnitudes of the VOC spectrums corresponding to the materials in the different sampling bags may be compared, and a part of the materials in the different sampling bags, whose intensity magnitudes exceed a set threshold, may be determined as a target material of the different materials that causes the target VOC content to exceed the standard. That is, the number of the target materials may be one or more, and the embodiments of the present application are not limited.
In the embodiment of the application, adopt movable gas chromatography-mass spectrometer to utilize SIM scanning mode (being single spectrum mode), can trace back the source to volatile organic compounds in the car in the short time, thereby can shorten the consuming time of VOC tracing back and do not receive the region restriction.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (1)
1. The vehicle VOC tracing method is characterized by comprising the following steps:
performing VOC test on the whole vehicle, and determining the target VOC with the content exceeding the standard;
placing the movable gas chromatograph-mass spectrometer in a vehicle, placing a sampling gun head on the surfaces of different parts in the vehicle to adsorb gas when the movable gas chromatograph-mass spectrometer is in an SIM scanning mode, and performing spectrogram analysis on the adsorbed gas to obtain VOC spectrograms corresponding to the different parts in the vehicle;
comparing the intensity of VOC spectrograms corresponding to different parts in the vehicle to determine target parts causing the target VOC content to exceed the standard in the different parts in the vehicle;
disassembling the determined target parts causing the standard exceeding of the target VOC content into different materials, respectively filling the different materials into different sampling bags with the same volume, and respectively filling high-purity nitrogen with the same volume into the different sampling bags;
respectively carrying out spectrogram analysis on the gas in the different sampling bags to obtain VOC spectrograms corresponding to the materials in the different sampling bags;
and comparing the intensity of the VOC spectrogram corresponding to the materials in the different sampling bags to determine the target material causing the target VOC content to exceed the standard in the different materials.
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| CN202110136156.2A CN112858560A (en) | 2021-02-01 | 2021-02-01 | Vehicle VOC tracing method |
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| CN202110136156.2A CN112858560A (en) | 2021-02-01 | 2021-02-01 | Vehicle VOC tracing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019095A (en) * | 2021-09-24 | 2022-02-08 | 东风汽车集团股份有限公司 | Automobile part smell detection device and detection method |
| CN114280195A (en) * | 2021-12-28 | 2022-04-05 | 广州广电计量检测股份有限公司 | Tracing method for volatile organic compounds in vehicle |
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| JPH08129002A (en) * | 1994-10-31 | 1996-05-21 | Shimadzu Corp | Chromatrograph mass spectrometer using sim method |
| CN108918691A (en) * | 2018-03-21 | 2018-11-30 | 北京卡达克数据有限公司 | A kind of in-car smell substance determines method and in-car smell substance source tracing method |
| CN109959748A (en) * | 2019-03-22 | 2019-07-02 | 中国第一汽车股份有限公司 | It is a kind of car emphasis odoring substance and the high-risk components of smell determine method |
| CN111241458A (en) * | 2019-12-25 | 2020-06-05 | 中汽研汽车检验中心（天津）有限公司 | Method for tracing odor in vehicle through multi-factor coupling analysis |
| CN111766328A (en) * | 2019-04-01 | 2020-10-13 | 中车唐山机车车辆有限公司 | Method for detecting odor source in vehicle |
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2021
- 2021-02-01 CN CN202110136156.2A patent/CN112858560A/en active Pending
Patent Citations (5)
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| JPH08129002A (en) * | 1994-10-31 | 1996-05-21 | Shimadzu Corp | Chromatrograph mass spectrometer using sim method |
| CN108918691A (en) * | 2018-03-21 | 2018-11-30 | 北京卡达克数据有限公司 | A kind of in-car smell substance determines method and in-car smell substance source tracing method |
| CN109959748A (en) * | 2019-03-22 | 2019-07-02 | 中国第一汽车股份有限公司 | It is a kind of car emphasis odoring substance and the high-risk components of smell determine method |
| CN111766328A (en) * | 2019-04-01 | 2020-10-13 | 中车唐山机车车辆有限公司 | Method for detecting odor source in vehicle |
| CN111241458A (en) * | 2019-12-25 | 2020-06-05 | 中汽研汽车检验中心（天津）有限公司 | Method for tracing odor in vehicle through multi-factor coupling analysis |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019095A (en) * | 2021-09-24 | 2022-02-08 | 东风汽车集团股份有限公司 | Automobile part smell detection device and detection method |
| CN114280195A (en) * | 2021-12-28 | 2022-04-05 | 广州广电计量检测股份有限公司 | Tracing method for volatile organic compounds in vehicle |
| CN114280195B (en) * | 2021-12-28 | 2024-03-22 | 广电计量检测集团股份有限公司 | Method for tracing source of volatile organic compounds in vehicle |
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