CN101493383B - Volatile substance generating and acquiring system - Google Patents
Volatile substance generating and acquiring system Download PDFInfo
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- CN101493383B CN101493383B CN2009101054830A CN200910105483A CN101493383B CN 101493383 B CN101493383 B CN 101493383B CN 2009101054830 A CN2009101054830 A CN 2009101054830A CN 200910105483 A CN200910105483 A CN 200910105483A CN 101493383 B CN101493383 B CN 101493383B
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Abstract
The invention provides a generation and acquisition system of a volatile matter. The generation and acquisition system comprises a water bath system (1), a generation component (2), an acquisition component (3) and a gas flow meter (4). The generation component (2) comprises a volatilization chamber (20) which is used for housing a test sample and is arranged inside a bathtub (10) of the water bath system and is provided with a carrier gas inlet, a carrier gas outlet, an opening and a sealing cover for sealing the opening. The acquisition component (3) comprises an acquisition container (30) which is used for holding an acquisition agent, and a gas inlet (31) of the acquisition container is connected to the carrier gas outlet (22) of the volatilization chamber (20) so as to acquire the matter which volatilizes from the test sample by the acquisition agent. The gas flow meter (4) is connected to a gas outlet of the acquisition container (30) for metering the volume of the gas. The generation and acquisition system of the volatile matter comprises the water bath system, the generation component, the acquisition component and the gas flow meter, and can conveniently generate and acquire the volatile matter of the test sample at constant temperature and constant pressure, and the acquired volatile matter can be easily metered. The generation and acquisition system is also applicable to gas chromatography-mass spectrum (GC-MS) detection, and can conveniently and accurately detect the variety and the content of the volatile matter in the test sample.
Description
[technical field]
The present invention relates to the generation and the acquisition system of volatile matter, be particularly useful for textile, leather and fur products volatile injurant matter (VOCs) generation and gather to carry out qualitative and quantitative analysis.
[background technology]
Textile and leather and fur products have been widely used in various fields, especially the relevant field of life.But owing to the reasons such as own attribute of production technology, raw material, textile and leather and fur products may volatilize some poisonous and hazardous materials, and these poisonous and harmful substances can cause very big influence to health in condition sluggish in air circulation.For example, the smell that the furniture of newly purchasing (as sofa, bedding) evaporates makes us feeling under the weather, and automotive interior trim can volatilize odour nuisance or the like with material.
Along with the enhancing of public's health environment-friendly consciousness, people more and more pay close attention to the security and the feature of environmental protection of textile, leather and fur products.At present, the detection of volatile injurant matter has become the technical indicator that requires in a lot of standards in textile, the leather and fur products.But, domesticly also do not put into effect at present relevant examination criteria, being used to of also extensively not approved detected the system of the volatile injurant of textile, leather and fur products.
Personnel know in the industry, and gas chromatography-mass spectrum (GC-MS) is a kind of good method that accurately detects volatile injurant matter in textile or the leather and fur products.Implement gas chromatography-mass spectrum, need to gather the volatile injurant matter in textile or the leather and fur products.An existing speciogenesis comprises a sealable container and syringe sampling thief with the system of the volatile matter of gathering sample, wherein, container is used to hold sample and heating sample hermetically, and the syringe sampling thief is used for the gas sample in the evacuation container, and the gas sample that is extracted is used for gas chromatography-mass spectrometry analysis.The defective of this speciogenesis and sampling system is: bad control heating-up temperature, air pressure in the bad control container, can't the harmful gas that evaporate all be extracted, in addition, air pressure and the air pressure in the container in the syringe sampling thief are often inequality, thereby impact for the quantitative Analysis in later stage, influence the accuracy of testing result.
Therefore, needing volatile injurant matter a kind of handled easily, that be applicable to textile, leather and fur products badly takes place and acquisition system.
[summary of the invention]
In view of this, the invention provides a kind of generation and acquisition system of volatile injurant matter, this generation and acquisition system comprise: the water-bath system, described water-bath system comprises the bathtub that is used to be filled with water, the electric heater unit of the heating that is used to feed water, be installed in the electrical measurement temperature device that is used for measuring water temperature in the bathtub, be installed in bathtub control circuit outward, and described control circuit is connected with described electric heater unit, electrical measurement temperature device; Generating assembly, described generating assembly comprise the volatilization chamber that is used for the splendid attire sample, the gland bonnet that described volatilization chamber has carrier gas inlet, carrier gas outlet, opening and is used to seal described opening, and described volatilization chamber is installed in the described bathtub and with bathtub inner wall and separates; And acquisition component, described acquisition component comprises the collection container that is used for splendid attire collection agent, described collection container has air intake opening and gas outlet, and the air intake opening of described collection container is connected to the material of carrier gas outlet to evaporate from described sample by collection agent collection of described volatilization chamber.
As a kind of preferred scheme, described generation and acquisition system also comprise gas meter, and described gas meter is used to measure gas flow rate and the gas volume that flows through described gas outlet by the gas outlet that conduit is connected to described acquisition component.
The generation of volatile matter of the present invention and acquisition system comprise water-bath system, generating assembly, acquisition component and gas meter, the volatile matter of sample can take place and gather under constant temperature, level pressure easily, volatile matter after the collection measures easily, and be applicable to that gas chromatography-mass spectrum (GC-MS) detects, and can detect the kind and the content of the volatile matter in the sample easily and accurately.
[description of drawings]
Fig. 1 is the assembling synoptic diagram of the volatile matter acquisition system of one embodiment of the invention;
Fig. 2 is the synoptic diagram of the water-bath system in the one embodiment of the invention;
Fig. 3 is the synoptic diagram of the generating assembly in the one embodiment of the invention;
Fig. 4 is the plug screw with holes of generating assembly shown in Figure 3 and the synoptic diagram of pad;
Fig. 5 and Fig. 6 are respectively the plug screw with holes shown in Figure 4 and the floor map of pad;
Fig. 7 is the synoptic diagram of the acquisition component in the one embodiment of the invention;
Fig. 8 is the synoptic diagram of the gas meter of one embodiment of the invention.
[embodiment]
Below
In conjunction with the accompanying drawings the present invention is set forth.
Fig. 1 is the generation of volatile matter of one embodiment of the invention and the assembling synoptic diagram of acquisition system.As shown in Figure 1, this generation and acquisition system comprise water-bath system 1, generating assembly 2, acquisition component 3 and gas meter 4.Wherein, generating assembly 2, acquisition component 3 and gas meter 4 are connected in series in turn, and their connector preferably adopts standard interface, to take apart easily and to be connected.Below
Set forth above-mentioned each parts in conjunction with Fig. 2～8.
Fig. 2 is the structural representation of water-bath system 1 shown in Figure 1, for the ease of setting forth, the bathtub part 10 of water-bath system is dissectd.With reference to figure 2, this water-bath system 1 comprises the bathtub 10 that is used to be filled with water, the electric heater unit 11 of the heating that is used to feed water, be installed in electrical measurement temperature device 12 that is used for measuring water temperature in the bathtub 10 and the circuit control section that is positioned at bathtub 10 next doors, and this circuit control section comprises housing, is installed in the interior circuit board of housing, pilot lamp 15, display screen 17, knob 16 and the function button 18 etc. that are arranged on the housing and are connected with circuit board.The heating part of electric heater unit 11 is installed in the bathtub, so that the water of Heating bath.The thermometric of electrical measurement temperature device 12 also is positioned at bathtub, to detect the water temperature in the bathtub quickly and accurately.The electrical heating dress
11, electrical measurement temperature device 12 is connected to the outer circuit control section of bathtub.In the present embodiment, water-bath system 1 is the water bath with thermostatic control system of control able to programme, can carry out temperature in 25 ℃～100 ℃ temperature ranges by knob 16 and set the waters temperature.Adopt the waters system,
Can control heating-up temperature and time easily.In addition, bathtub 10 outer walls have heat-insulation layer 13, and bathtub 10 tops are provided with the volatilization chamber 20 that support member 14 is used for fixing generating assembly.
Fig. 3 is the structural representation of generating assembly 2 shown in Figure 1.As shown in Figure 3, generating assembly 2 comprises having opening volatilization chamber 20, and volatilization chamber 20 is used for the splendid attire sample also as the place of impelling volatile matter to take place.Volatilization chamber 20 opening parts are provided with gland bonnet 23, and gland bonnet 23 is a serum cap, the preferably polytetrafluoroethylene lid.Volatilization chamber 20 is provided with carrier gas inlet 21 and carrier gas outlet 22 by the sidewall of opening part, and carrier gas inlet 21 is connected to carrier gas source by spiral fashion draft tube 25, for example nitrogen (the N of low temperature
2).In the present embodiment, the volatilization chamber is a kind of tempered glass cup, and volume is one liter.Carrier gas inlet 21 and carrier gas outlet 22 also comprise the conduit that is arranged in the glass cylinder, and conduit extends toward the cup end from the glass cylinder opening part.And, inject standardizing chemical reagent for syringe at gland bonnet 23 places.
As required, pressure gauge 24 can also be set on generating assembly, described pressure gauge is installed on the gland bonnet 23 of described volatilization chamber and is used to measure and show the air pressure that described volatilization is indoor, so that the volatilization condition of constant temperature, constant voltage is provided.
In use, volatilization chamber 20 is installed in the described bathtub 10, and by support member 14 supportings at bathtub 10 tops of water-bath system, the outer wall of volatilization chamber 20 and the inwall of bathtub separate.
As a kind of improvement, on the gland bonnet 23 reagent inlet 27 can be set, so that to the indoor injection reagent of volatilization, it is qualitative to contrast for example to inject standard reagent.Set forth the concrete structure of reagent inlet 27 below in conjunction with Fig. 4 to Fig. 6, wherein Fig. 4 is the plug screw of hollow and the synoptic diagram of packing ring thereof, and Fig. 5 is the planimetric map of the plug screw of hollow, and Fig. 6 is the synoptic diagram of packing ring.In one embodiment, reagent inlet 27 is arranged on the cover panel of gland bonnet 23, and particularly, cover panel has a shrinkage pool, the packing ring 2703 that the bottom support of shrinkage pool is shown in Figure 6, and plug screw 2701 shown in Figure 5 is installed in the bottom that in the shrinkage pool packing ring 2703 is stabilized in shrinkage pool.With reference to figure 4 and Fig. 5, plug screw 2701 has columniform shaft and hexagonal nut, plug screw 2701 has axial through hole 2702, when needing to add standard reagent, syringe needle can be goed deep into through hole 2702, and pierce through the corresponding position 2704 of packing ring 2703, thereby can easily standard reagent be injected in the volatilization chamber 20.Packing ring 2703 is teflon preferably, because the teflon shrinkability is strong, corrosion-resistant, high temperature resistant, chemical property and physical property are all very stable.Certainly, adopt the solution of the present invention, also can after syringe needle interts repeatedly, change packing ring 2703, to guarantee the sealing of volatilization chamber.
In above-mentioned reagent inlet 27, the shrinkage pool bottom on the cover panel of gland bonnet 23 can have aperture aligns with the through hole 2702 of plug screw 2701, so that syringe needle passes; Alternatively, this shrinkage pool bottom can not have aperture, but, the shrinkage pool bottom is made of the material that can pierce through, shrinkage pool and crown cap panel become one, and are that commaterial is formed, and are shrinkage pools of subduing with machinery on metal decking, the sealing dottle pin that can pierce through is put in the bottom of this shrinkage pool, seals with maintenance by porose screw pressurization then.
Fig. 7 is the synoptic diagram of acquisition component 3 shown in Figure 1.As shown in Figure 7, acquisition component 3 comprises collection container 30, and collection container 30 is loaded with the collection agent and is used to gather the material that evaporates from volatilization chamber 20.Collection container 30 two ends have air intake opening 31 and gas outlet 32 respectively, and air intake opening 31 exports 22 by the carrier gas that spiral helicine escape pipe 26 is connected to described volatilization chamber, with the material that evaporates from described sample by collection agent collection.In the present embodiment, collection container 30 is the Tenax sampling pipe, and the collection agent of interior dress is the Tenax-GC adsorbent.
Preferably, the air intake opening 31 of acquisition component 3, gas outlet 32 are standard interface, so that connecting line (escape pipe 26 of the chamber of for example volatilizing) like this, can be changed corresponding adsorption tube according to the difference of adsorbate.
Fig. 8 is the synoptic diagram of gas meter 4 shown in Figure 1.As shown in Figure 8, gas meter 4 is connected to the gas outlet 32 of described acquisition component by conduit 41, is used to measure the gas volume that flows through described gas outlet.In the present embodiment, gas flow is counted the electronics soap film flowmeter, and range is 5-5000ml/min.
Engaging accompanying drawing above sets forth the generation and the acquisition system of the volatile matter of the preferred embodiment of the present invention, the principle of this generation and acquisition system is: water-bath system 1 heats volatilization chamber 20 with predetermined temperature, make textile or leather and fur products sample under this predetermined temperature, volatilize harmful gas, utilize the carrier gas stream (N2) of constant flow rate that the volatility harmful gas is transported in the collection container 30 then, behind the certain hour, the collection container 30 that has adsorbed harmful gas can be installed on the thermal desorption device, desorb volatile injurant matter imports objectionable impurities to be measured in the gaschromatographic mass spectrometry system then and carries out qualitative and quantitative analysis.Among Fig. 1 to Fig. 8, the direction of arrow in the pipeline is represented the direction of air-flow.
Particularly, it is as follows to use the step that above-mentioned generation and acquisition system detect the objectionable impurities in textile, the leather:
Install the generation and the acquisition system of volatile injurant matter of the present invention according to der group shown in Figure 1;
Sample is placed in the volatilization chamber 20 of acquisition component 2, builds gland bonnet 23;
Connect the power supply of water-bath system 1, configure bath temperature, the water in the Heating bath 10 by knob;
Open the switch of carrier gas source, make carrier gas enter volatilization chamber 20, and flow through acquisition component 3 by the carrier gas outlet 22 of volatilization chamber 20;
Specified acquisition time in the past after, stop to gather the volume of the air-flow of crossing by gas meter 4 reading flow;
In the present embodiment, testing result has two kinds of expression modes, and a kind of mode is the quality of the volatile injurant matter after resolving and the ratio of the volume of corresponding air-flow, and another kind of mode is the ratio of the quality of the quality of the volatile injurant matter after the parsing and sample.Should recognize,, so, can omit gas meter shown in Figure 14 if adopt second kind of expression mode.
More than engage preferred embodiment and be described, still can not therefore be interpreted as restriction claim of the present invention to of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the generation of a volatile matter and acquisition system is characterized in that, comprising:
Water-bath system (1), described water-bath system comprises the bathtub (10) that is used to be filled with water, the electric heater unit (11) of the heating that is used to feed water, be installed in the electrical measurement temperature device (12) that is used for measuring water temperature in the bathtub, be installed in bathtub control circuit outward, and described control circuit is connected with described electric heater unit, electrical measurement temperature device;
Generating assembly (2), described generating assembly comprises the volatilization chamber (20) that is used for the splendid attire sample, the gland bonnet (23) that described volatilization chamber has carrier gas inlet (21), carrier gas outlet (22), opening and is used to seal described opening, described volatilization chamber (20) are installed in the described bathtub (10) and with bathtub inner wall and separate; And
Acquisition component (3), described acquisition component comprises the collection container (30) that is used for splendid attire collection agent, described collection container has air intake opening (31) and gas outlet (32), and the air intake opening of described collection container (31) is connected to the material of carrier gas outlet (22) to evaporate from described sample by collection agent collection of described volatilization chamber.
2. the generation of volatile matter according to claim 1 and acquisition system, it is characterized in that, described generation and acquisition system also comprise gas meter (4), and described gas meter is used to measure gas flow rate and the gas volume that flows through described gas outlet by the gas outlet (32) that conduit (41) is connected to described acquisition component.
3. the generation of volatile matter according to claim 1 and 2 and acquisition system, it is characterized in that, described generating assembly also comprises pressure gauge (24), and described pressure gauge is installed on the gland bonnet (23) of described volatilization chamber and is used to measure and show the air pressure that described volatilization is indoor.
4. the generation of volatile matter according to claim 3 and acquisition system, it is characterized in that, the carrier gas inlet (21) of described volatilization chamber and carrier gas outlet (22) are arranged on the gland bonnet (23) of described volatilization chamber or the sidewall of volatilization chamber, carrier gas inlet (21) is connected to carrier gas source by spiral helicine draft tube (25), and carrier gas outlet (22) is connected to the air intake opening (31) of described collection container by spiral helicine escape pipe (26).
5. the generation of volatile matter according to claim 4 and acquisition system is characterized in that, air intake opening (31) and gas outlet (32) of the carrier gas inlet (21) of described volatilization chamber, carrier gas outlet (22) and described collection container are standard interface.
6. the generation of volatile matter according to claim 3 and acquisition system, it is characterized in that, the gland bonnet (23) of volatilization chamber is provided with reagent inlet (27), described reagent inlet (27) comprises shrinkage pool on the cover panel of described gland bonnet (23), (2703 are installed in the plug screw (2701) in the shrinkage pool, described plug screw (2701) to be installed in the packing ring of shrinkage pool bottom
Packing ring (2703) is fixed to the shrinkage pool bottom, and described plug screw (2701) has axial through hole (2702), and described packing ring and described shrinkage pool bottom are made of the material that can puncture.
7. the generation of volatile matter according to claim 6 and acquisition system is characterized in that, described packing ring (2703) is the teflon cover material.
8. the generation of volatile matter according to claim 3 and acquisition system is characterized in that, described water-bath system comprises the heat-insulation layer (13) that is arranged on bathtub (10) outer wall; Described bathtub (10) top is provided with support member (14) and is used for fixing described volatilization chamber (20).
9. according to the generation and the acquisition system of any described volatile matter in the claim 4 to 8, it is characterized in that the gland bonnet (23) of described volatilization chamber is a serum cap.
10. according to the generation and the acquisition system of any described volatile matter in the claim 4 to 8, it is characterized in that the volume of described volatilization chamber is 1 liter.
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| CN2009101054830A CN101493383B (en) | 2009-02-20 | 2009-02-20 | Volatile substance generating and acquiring system |
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| CN2009101054830A CN101493383B (en) | 2009-02-20 | 2009-02-20 | Volatile substance generating and acquiring system |
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| CN101493383A CN101493383A (en) | 2009-07-29 |
| CN101493383B true CN101493383B (en) | 2011-01-19 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081038B (en) * | 2011-01-24 | 2012-07-04 | 宁波市环境监测中心 | Detection device for volatile substance in water and detection method thereof |
| CN102778368A (en) * | 2012-08-09 | 2012-11-14 | 山东省产品质量监督检验研究院 | Sampling method and collector for organic volatile matters in product/sample |
| CN102798555A (en) * | 2012-08-09 | 2012-11-28 | 马文平 | Method for sampling organic volatile compound in product/sample and collector |
| CN103675125B (en) * | 2013-11-27 | 2015-04-15 | 江苏省环境监测中心 | Test device for sampling efficiency of volatile organic compounds in air |
| CN104990827B (en) * | 2015-06-15 | 2019-02-01 | 北京科技大学 | The measuring method and equipment of low volatility organic gas adsorbance on the adsorbent material |
| CN107328882A (en) * | 2017-08-25 | 2017-11-07 | 中国石油大学(华东) | Coal volatility and volatile ingredient determine device and assay method |
| CN115808502A (en) * | 2022-11-24 | 2023-03-17 | 上海富乐德智能科技发展有限公司 | Online sampling method suitable for dust-free oven |
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| CN201440116U (en) * | 2009-02-20 | 2010-04-21 | 广州市纤维产品检测院 | Generation and collection equipment for volatile substances |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201440116U (en) * | 2009-02-20 | 2010-04-21 | 广州市纤维产品检测院 | Generation and collection equipment for volatile substances |
Non-Patent Citations (3)
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| 吴惠勤 等.汽车装饰材料挥发性有机物的气相色谱- 质谱法测定.《分析测试学报》.2008,第27卷(第7期),705-708. * |
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Address after: 510220 No. 687 South China East Road, Haizhu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou fiber product detects research institute Address before: 510220 No. 687 South China East Road, Haizhu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Fibre Product Testing Institute |