CN104950065A - Full smoke trapping and online analysis device and method - Google Patents
Full smoke trapping and online analysis device and method Download PDFInfo
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- CN104950065A CN104950065A CN201510430816.2A CN201510430816A CN104950065A CN 104950065 A CN104950065 A CN 104950065A CN 201510430816 A CN201510430816 A CN 201510430816A CN 104950065 A CN104950065 A CN 104950065A
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Abstract
The invention relates to a full smoke trapping and online analysis device and method. The full smoke trapping and online analysis device comprises a cigarette holder (1), a first gas flow controller or an electromagnetic valve (2), a gas pipeline (15) and a suction pump (4) which are sequentially connected, wherein the cigarette holder (1) is used for clamping a cigarette (14), and gas flow of the gas pipeline (15) and gas flow of the cigarette (14) are controlled to be communicated or not through the first gas flow controller or the electromagnetic valve (2). The full smoke trapping and online analysis device further comprises an external control unit (13), a cold trap catcher (16) communicated with the gas pipeline (15) through a first sample inlet (5), and a detection device (22) communicated with the cold trap catcher (16). The full smoke trapping and online analysis device is easy to operate, high in repeatability, high in analysis sensitivity and capable of catching and analyzing various substances in full smoke at a time, no pretreatment is needed, no organic solvent needs to be used, and harm of organic solvent to environments and human health is reduced while analysis expenses are saved.
Description
Technical field
The present invention relates to a kind of whole smoke trapping and on-line analysis device.
Background technology
Many chemical compositions in cigarette mainstream smoke condensate and gas gas-phase objects are to the fragrance of cigarette, jealous and have Different Effects to the health of human body, bibliographical information cigarette mainstream flue gas grain phase constituent is contributed largely in the fragrance of cigarette and jealous gas phase composition then has impact to the pungency of cigarette, therefore carries out analysis and research to cigarette smoke significant.At present granule phase substance analysis and gas gas-phase objects analysis are mainly divided into the analysis of cigarette smoke, all first will be trapped Smoke Particulate and gas gas-phase objects by suitable Trapping ways, after carry out suitable pre-treatment, then to analyze, all unrealized on-line analysis.
The conventional capture method of main flume trapping mainly contains 5 kinds: cambridge filter, electrostatic catcher, cold trap trapping device, Capture by Sorbents and solution trap.Cambridge filter is a kind of glass fiber filter being added with organic bond, and cambridge filter topmost purposes in flue gas analysis is trapping Smoke Particulate.For the gas phase composition that some Polarity comparision are strong, soluble in water, the separating effect of cambridge filter is poor.For the trapping of cigarette granule phase substance, electrostatic precipitation is a kind of important alternative capture method of cambridge filter.The shortcoming of electrostatic precipitation trapping is mainly that its trap conditions is too violent, and the effluve in electrostatic catcher and the formation of ozone may cause the generation of artifacts.For the trapping of mainstream smoke constituents, optimal state is that the composition of trapped chemical composition is consistent with the composition of actual flue gas aerosol, and secondary reaction must be avoided, and cold trap trapping part meets above requirement.Adopt cold trap trapping not need to use solvent, also do not need high voltage, and low temperature reduces the speed of many chemical reactions, these advantages reduce the possibility that artifacts generates to the full extent.But usually there is absorption bottle in traditional cold trap trapping device, and need in absorption bottle to place absorbent solution (being generally organic solvent), in trapping process, need absorption bottle to be placed in low-temperature receiver, the composition (can be cooled to about-100 DEG C) etc. of the potpourri (can be cooled to about-78 DEG C) of such as liquid nitrogen and isopropyl alcohol, dry ice or liquid nitrogen or glycerine, wherein the temperature of low-temperature receiver needs the temperature of entirely coagulating lower than component in full flue gas.Treat that main flume to enter in cold trap trapping device and to need this cold trap trapping device after being captured that manual transfer is out from low-temperature receiver, carry out again heating up, gas solid separation, the aftertreatment such as concentrated and removal of impurities, in transfer and last handling process, component wherein is heated, chemical reaction may be there is wherein, cause flue gas to form and change.Visible traditional cold trap trapping utensil has following shortcoming: 1, need with an organic solvent; 2, need manual operation and for intermittently operated, real-time online cannot be realized and detect; 3, cannot constant low temperature be kept, may secondary reaction be caused, smoke components is lost or decomposes.Solid adsorbent has trapping and concentrated effect simultaneously, and smoke components is usually adopted thermal desorption or solvent-extracted method and is further processed after Capture by Sorbents.The major defect of Capture by Sorbents is: 1, target compound absorption/desorption is incomplete; 2, trapping not exclusively; 3, between adsorbent different batches, repeatability is poor; 4, adsorption capacity is difficult to evaluate.Solution method of trapping carries out capture method the most frequently used when cigarette mainstream flue gas special compound is analyzed.Solution trapping uses when trapping flue gas gas gas-phase objects usually, and the application for full flue gas analysis is relatively less.Solution trapping and Capture by Sorbents also have a common shortcoming to be have specificity, only can trap the composition with solution or adsorbent with affinity, be difficult to entirely trap gas phase compositions all in flue gas.
Instant invention overcomes now methodical deficiency, one channel suction pump is adopted to aspirate the cigarette such as traditional cigarette or electronic cigarette, utilize large volume cold trap trapping device to trap and condensation full flue gas, and online desorption is carried out, laggard row gaschromatographic mass spectrometric analysis to composition in the flue gas of trapping.Achieve the on-line analysis of the full flue gas of cigarette.By literature search, the open report identical with the present invention is had no.
Summary of the invention
The object of this invention is to provide a kind of easy to use, full flue gas and on-line analysis device of measuring cigarette mainstream flue gas accurately, to improve arresting efficiency and to realize the on-line analysis of full smoke components, can be used for the A+E of Chemical Components in Cigarette Smoke.
The present invention relates to a kind of whole smoke trapping and on-line analysis device, it comprises cigarette holder 1, first gas flow controller or solenoid valve 2, gas piping 15 and the suction pump 4 for the clamping cigarette 14 that are linked in sequence, and whether wherein said gas piping 15 is controlled by described first gas flow controller or solenoid valve 2 with the airflow connection of described cigarette 14; It also comprises external control unit outside 13, the cold trap trapping device 16 be communicated with by the first injection port 5 with described gas piping 15 and the pick-up unit 22 be communicated with described cold trap trapping device 16; The liquid nitrogen bottle 10 that wherein said cold trap trapping device 16 comprises condensation chamber 20, be communicated with the heat-exchanger rig around described condensation chamber 20 by the first air intake opening 17 and the shunting drain 6 being positioned at described condensation chamber 20 one end, wherein said liquid nitrogen bottle 10 is controlled by the second gas flow controller or solenoid valve 18; Described pick-up unit 22 comprises vaporizer 8, is positioned at the glass bushing pipe 7 of described vaporizer 8, by can the chromatographic column 12 that is communicated with described vaporizer 8 of the injection port 9 of temperature programme and the inert gas bottle 11 that is communicated with described vaporizer 8 by the second air intake opening 21, wherein said inert gas bottle 11 be controlled by the 3rd gas flow controller or solenoid valve 19.
Wherein said external control unit outside 13 controls the condensing condition of described cold trap trapping device 16 and the testing conditions of described pick-up unit 22, comprise the temperature and temperature programme condition etc. of cold trap trapping device sampling condition, condensing trapping temperature and described vaporizer 8, and by cryogenic trapping to flue gas inert gas send in described pick-up unit 22, such as gas chromatography mass spectrometer, volatile material etc. can be gasified near the injection port 9 of temperature programme described, realize carrying out complete on-line analysis to smoke components.
In a preferred embodiment of the present invention, described first gas flow controller or solenoid valve 2, described suction pump 4 and described first injection port 5 arrange as follows: when described suction pump 4 is bled from described gas piping 15, described first gas flow controller or solenoid valve 2 are opened and described first injection port 5 is closed, and the first gas flow controller or solenoid valve 2 described in when described suction pump 4 is calmed the anger in described gas piping 15 are closed and described first injection port 5 is opened.
In a preferred embodiment of the present invention, described cigarette 14 comprises traditional cigarette, electronic cigarette and heats not burning type cigarette.
In a preferred embodiment of the present invention, the outer of described gas piping 15 is arranged with heat-insulation layer 3; Wherein said heat-insulation layer 3 is by described external control unit outside 13 temperature control.Wherein by controlling described external control unit outside 13, making the described heat-insulation layer 3 outside described gas piping 15 remain on preference temperature, ensureing the stable of flue-gas temperature on the one hand, preventing flue gas condensing simultaneously on the tube wall of described gas piping 15.
In a preferred embodiment of the present invention, described suction pump 4 is one channel suction pump.Wherein, described suction pump 4 can according to different cigarette types, such as different suction modes selected by traditional cigarette, electronic cigarette or the heating cigarette that do not burn, and comprises the parameters such as puff number, pumping volume, suction time, Puffing interval and puffing profile.
Second aspect present invention relates to a kind of whole smoke trapping and on-line analysis, and it comprises the following steps:
1) smoking parameters is set, by suction pump, cigarette is aspirated;
2) main flume suction being produced all enters in cold trap trapping device and carries out condensation; and by uncondensed gas and a part of condensed fluid emptying, the condensed fluid of remainder after emptying is carried out under the protection of inert gas intensification gasification and enter in pick-up unit subsequently detecting.Wherein, uncondensed gas comprises CO, N
2, O
2deng.
In a preferred embodiment of the present invention, described whole smoke trapping and on-line analysis use whole smoke trapping as described in the first aspect of the invention and on-line analysis device to carry out, and the method comprises the following steps:
1) smoking parameters is arranged to described suction pump 4, and make when described suction pump 4 is bled from described gas piping 15, described first gas flow controller or solenoid valve 2 are opened and described first injection port 5 is closed, by described suction pump 4, the described cigarette 14 be clamped in described cigarette holder 1 is aspirated thus, the main flume produced all is retained in described gas piping 15 in cigarette aspiration procedure;
2) open described liquid nitrogen bottle 10 by described second gas flow controller or solenoid valve 18 and in the heat-exchanger rig around described condensation chamber 20, pass into liquid nitrogen by described first air intake opening 17 and described condensation chamber 20 is lowered the temperature; First gas flow controller or solenoid valve 2 described in when described suction pump 4 is calmed the anger in described gas piping 15 are closed and described first injection port 5 is opened, make the whole main flumes be retained in described gas piping 15 enter into described condensation chamber 20 by described first injection port 5 thus and carry out condensation, and by uncondensed gas and a part of condensed fluid by the emptying of described shunting drain 6; Open described inert gas bottle 11 by described 3rd gas flow controller or solenoid valve 19 and in described vaporizer 8, pass into inert gas by described second air intake opening 21, condensed fluid remaining after emptying is passed into gasification in described glass bushing pipe in described vaporizer 87, then the injection port 9 of temperature programme can enter in the described chromatographic column 12 in downstream and detect through described; The condensing condition of wherein said cold trap trapping device 16 and the testing conditions of described pick-up unit 22 are controlled by described external control unit outside 13.
In a preferred embodiment of the present invention, described pick-up unit is gas chromatograph-mass spectrometer (GCMS).
In a preferred embodiment of the present invention, the temperature of described main flume condensation is-160 DEG C ~ 0 DEG C.
In a preferred embodiment of the present invention, the gasification temperature in described vaporizer 8 is 100 DEG C-350 DEG C.
In a preferred embodiment of the present invention, by-the compressed air circulation of bleeding each time of described suction pump 4, realize aspirating by mouth and on-line checkingi is carried out to whole compositions of the main flume in every a bite cigarette.
The present invention has the following advantages: 1, got off by cold trap trapping by full flue gas, and trapping process avoids the generation of artifacts, effectively avoids loss or the decomposition of smoke components; Again the gasification of partial condensation composition is analyzed, can carry out by mouth analysis to the flue gas trapped, realize on-line analysis, avoid secondary reaction occurs, and can analyze the granule phase substance in full flue gas and gas gas-phase objects simultaneously, without the need to both are separated, can not impact composition in flue gas, also without any pretreatment process.2, the trapping of polarity and apolar substance, gas gas-phase objects and granule phase substance is comprised to the various components in the full flue gas produced in the cigarette aspiration procedure such as cigarette burning or electronic cigarette are heated more abundant and complete, can be used for the quantitative and qualitative research of volatile matter and objectionable impurities in the full flue gas of cigarette, for cigarette exploitation provides new research method.3, the cold trap trapping device in apparatus of the present invention can component effectively in enriched flue gas sample, can avoid the interference of other capture method matrix compositions and solvent, have certain advantage in the context of detection of smoke components.4, the desorption after having trapped can arrange different heating schedules according to the character of object, ensure that the complete sample introduction that can detect composition in gaschromatographic mass spectrometry.5, device of the present invention is full automatic working, can fully automatically aspirate by mouth, sample by mouth, by mouth sample detection, simple to operate, reproducible, sensitivity for analysis is high, can disposable trapping the many kinds of substance analyzed in full flue gas, without any need for pre-treatment, and without the need to using any organic solvent, saving and decreasing the harm of organic solvent to environment and health while analysis cost.
Accompanying drawing explanation
Fig. 1 is whole smoke trapping of the present invention and on-line analysis apparatus structure schematic diagram; Wherein arrow instruction gas flow direction.
Fig. 2 is cold trap trapping device 16 structural representation in whole smoke trapping shown in Fig. 1 and on-line analysis device.
Fig. 3 is existing cold trap trapping device schematic diagram in prior art.
Fig. 4 is composition chromatogram in the embodiment of the present invention 1;
Fig. 5 is composition chromatogram in the embodiment of the present invention 2
Wherein each Reference numeral has following implication:
1-cigarette holder; 2-first gas flow controller or solenoid valve; 3-heat-insulation layer; 4-suction pump; 5-first injection port; 6-shunts drain; 7-glass bushing pipe; 8-vaporizer; 9-can the injection port of temperature programme; 10-liquid nitrogen bottle; 11-inert gas bottle; 12-chromatographic column; 13-external control unit outside; 14-cigarette; 15-gas piping; 16-cold trap trapping device; 17-first air intake opening; 18-second gas flow controller or solenoid valve; 19-the 3rd gas flow controller or solenoid valve; 20-condensation chamber; 21-second air intake opening; 22-pick-up unit.
Embodiment
Be described in further detail the present invention below in conjunction with embodiment and accompanying drawing, but should be understood that embodiment is only illustrative, and not restrictive.
Embodiment 1
Adopt a kind of whole smoke trapping as shown in Figure 1 and on-line analysis device, it comprises cigarette holder 1, first gas flow controller or solenoid valve 2, gas piping 15 and the suction pump 4 for the clamping cigarette 14 that are linked in sequence, and whether wherein said gas piping 15 is controlled by described first gas flow controller or solenoid valve 2 with the airflow connection of described cigarette 14; It also comprises external control unit outside 13, the cold trap trapping device 16 be communicated with by the first injection port 5 with described gas piping 15 and the pick-up unit 22 be communicated with described cold trap trapping device 16; The liquid nitrogen bottle 10 that wherein said cold trap trapping device 16 comprises condensation chamber 20, be communicated with the heat-exchanger rig around described condensation chamber 20 by the first air intake opening 17 and the shunting drain 6 being positioned at described condensation chamber 20 one end, wherein said liquid nitrogen bottle 10 is controlled by the second gas flow controller or solenoid valve 18; Described pick-up unit 22 comprises vaporizer 8, is positioned at the glass bushing pipe 7 of described vaporizer 8, by can the chromatographic column 12 that is communicated with described vaporizer 8 of the injection port 9 of temperature programme and the inert gas bottle 11 that is communicated with described vaporizer 8 by the second air intake opening 21, wherein said inert gas bottle 11 be controlled by the 3rd gas flow controller or solenoid valve 19.Described first gas flow controller or solenoid valve 2, described suction pump 4 and described first injection port 5 arrange as follows: when described suction pump 4 is bled from described gas piping 15, described first gas flow controller or solenoid valve 2 are opened and described first injection port 5 is closed, and the first gas flow controller or solenoid valve 2 described in when described suction pump 4 is calmed the anger in described gas piping 15 are closed and described first injection port 5 is opened.
Use whole smoke trapping as shown in Figure 1 and on-line analysis device to carry out whole smoke trapping and on-line analysis, this whole smoke trapping and on-line analysis comprise the following steps:
1) suitable smoking parameters is arranged to described suction pump 4, and make when described suction pump 4 is bled from described gas piping 15, described first gas flow controller or solenoid valve 2 are opened and described first injection port 5 is closed, by described suction pump 4, the described cigarette 14 be clamped in described cigarette holder 1 is aspirated thus, the main flume produced all is retained in described gas piping 15 in cigarette aspiration procedure;
2) open described liquid nitrogen bottle 10 by described second gas flow controller or solenoid valve 18 and in the heat-exchanger rig around described condensation chamber 20, pass into liquid nitrogen by described first air intake opening 17 and described condensation chamber 20 is lowered the temperature; First gas flow controller or solenoid valve 2 described in when described suction pump 4 is calmed the anger in described gas piping 15 are closed and described first injection port 5 is opened, make the whole main flumes be retained in described gas piping 15 enter into described condensation chamber 20 by described first injection port 5 thus and carry out condensation, and by uncondensed gas and most of condensed fluid by the emptying of described shunting drain 6; Open described inert gas bottle 11 by described 3rd gas flow controller or solenoid valve 19 and in described vaporizer 8, pass into inert gas by described second air intake opening 21, condensed fluid remaining after emptying is passed into gasification in described glass bushing pipe in described vaporizer 87, then through described can the injection port 9 of temperature programme be that carrier gas enters in the described chromatographic column 12 in downstream and detects with inert gas; The condensing condition of wherein said cold trap trapping device 16 and the testing conditions of described pick-up unit 22 are controlled by described external control unit outside 13.
Get certain brand traditional cigarette and carry out smoking according to YC/T29-1996 standard, namely single port pumping volume is 35mL, and suction time is 2s, and puff interval is 38s, and puffing profile is bell curve.
Cold trap trapping device trapping temperature: – 60 DEG C; Vaporizer programmed temperature sampling condition: You – 60 DEG C rises to 280 DEG C Nei 5min;
Gas chromatography/mass spectrometry method:
GC/MS condition: chromatographic column: HP-5MS Fused-silica capillary column (30m × 0.25mm × 0.25um); Carrier gas: helium (purity is 99.999%); Flow velocity: 1mL/min; Temperature programme:
injector temperature: 280 DEG C; Split ratio is 20:l; Transmission line temperature: 280 DEG C; Ionization mode: electron bombardment ionization source (EI); Electron energy: 70ev; Scan mode: full scan; Sweep limit: 29 ~ 450amu; Ion source temperature: 230 DEG C; Level Four bar temperature: 150 DEG C; Not solvent delay.To in tobacco-containing material thermal cracking products volatile ingredient adopt NIST 2008 and WILEY07 standard spectrum library searching qualitative, adopt areas of peak normalization method quantitative.As shown in Figure 4, composition and relative content thereof are in table 1 for the full flue gas volatile ingredient chromatogram obtained:
Table 1: certain brand cigarette full flue gas volatile ingredient table
Embodiment 2
Adopt the whole smoke trapping described in embodiment 1 and on-line analysis device and method, get certain brand traditional cigarette and carry out smoking according to YC/T29-1996 standard, namely single port pumping volume is 35mL, and suction time is 2s, puff interval is 38s, and puffing profile is bell curve.
Cold trap trapping device trapping temperature: – 100 DEG C; Vaporizer programmed temperature sampling condition: You – 60 DEG C rises to 280 DEG C Nei 5min;
Gas chromatography/mass spectrometry method:
GC/MS condition: chromatographic column: HP-5MS Fused-silica capillary column (30m × 0.25mm × 0.25um); Carrier gas: helium (purity is 99.999%); Flow velocity: 1mL/min; Temperature programme:
injector temperature: 280 DEG C; Split ratio is 20:l; Transmission line temperature: 280 DEG C; Ionization mode: electron bombardment ionization source (EI); Electron energy: 70ev; Scan mode: full scan; Sweep limit: 29 ~ 450amu; Ion source temperature: 230 DEG C; Level Four bar temperature: 150 DEG C; Not solvent delay.To in tobacco-containing material thermal cracking products volatile ingredient adopt NIST 2008 and WILEY07 standard spectrum library searching qualitative, adopt areas of peak normalization method quantitative.As shown in Figure 5, composition and relative content thereof are in table 2 for the full flue gas volatile ingredient chromatogram obtained:
Table 2: certain brand cigarette full flue gas volatile ingredient table
Above embodiment 1 and embodiment 2 show, because device of the present invention successfully can realize the full composition trapping of flue gas, bioaccumulation efficiency is high, therefore in gas chromatography-mass spectrometry analysis, can analyze more smoke components.Meanwhile, detect and the secondary reaction avoiding flue gas to be such as oxidized etc. because device of the present invention can be implemented in line, in the flue gas therefore recorded, composition and content thereof are more close to true composition and content thereof.
Claims (10)
1. a whole smoke trapping and on-line analysis device, it comprise be linked in sequence for clamping the cigarette holder (1) of cigarette (14), the first gas flow controller or solenoid valve (2), gas piping (15) and suction pump (4), whether wherein said gas piping (15) is controlled by described first gas flow controller or solenoid valve (2) with the airflow connection of described cigarette (14); It is characterized in that, it also comprises external control unit outside (13), the cold trap trapping device (16) be communicated with by the first injection port (5) with described gas piping (15) and the pick-up unit (22) be communicated with described cold trap trapping device (16); The liquid nitrogen bottle (10) that wherein said cold trap trapping device (16) comprises condensation chamber (20), is communicated with by the first air intake opening (17) and described condensation chamber (20) heat-exchanger rig around and the shunting drain (6) being positioned at described condensation chamber (20) one end, wherein said liquid nitrogen bottle (10) is by the second gas flow controller or solenoid valve (18) control; Described pick-up unit (22) comprises vaporizer (8), is positioned at the glass bushing pipe (7) of described vaporizer (8), by can the chromatographic column (12) that is communicated with described vaporizer (8) of the injection port (9) of temperature programme and the inert gas bottle (11) that is communicated with described vaporizer (8) by the second air intake opening (21), wherein said inert gas bottle (11) be by the 3rd gas flow controller or solenoid valve (19) control.
2. whole smoke trapping according to claim 1 and on-line analysis device, it is characterized in that: described first gas flow controller or solenoid valve (2), arranging of described suction pump (4) and described first injection port (5) is as follows: when described suction pump (4) is bled from described gas piping (15), described first gas flow controller or solenoid valve (2) are opened and described first injection port (5) is closed, first gas flow controller described in when described suction pump (4) is calmed the anger in described gas piping (15) or solenoid valve (2) are closed and described first injection port (5) is opened.
3. whole smoke trapping according to claim 1 and on-line analysis device, is characterized in that: the outer of described gas piping (15) is arranged with heat-insulation layer (3); Wherein said heat-insulation layer (3) is by described external control unit outside (13) temperature control.
4. whole smoke trapping according to claim 1 and on-line analysis device, is characterized in that: described suction pump (4) is one channel suction pump.
5. whole smoke trapping and an on-line analysis, is characterized in that, it comprises the following steps:
1) smoking parameters is set, by suction pump, cigarette is aspirated;
2) main flume suction being produced all enters in cold trap trapping device and carries out condensation; and by uncondensed gas and a part of condensed fluid emptying, the condensed fluid of remainder after emptying is carried out under the protection of inert gas intensification gasification and enter in pick-up unit subsequently detecting.
6. whole smoke trapping according to claim 5 and on-line analysis, is characterized in that, the method uses the whole smoke trapping according to any one of claim 1-4 and on-line analysis device to carry out, and the method comprises the following steps:
1) smoking parameters is arranged to described suction pump (4), and make when described suction pump (4) is bled from described gas piping (15), described first gas flow controller or solenoid valve (2) are opened and described first injection port (5) is closed, by described suction pump (4), the described cigarette (14) be clamped in described cigarette holder (1) is aspirated thus, the main flume produced all is retained in described gas piping (15) in cigarette aspiration procedure;
2) open described liquid nitrogen bottle (10) by described second gas flow controller or solenoid valve (18) and pass through pass into liquid nitrogen in the heat-exchanger rig of described first air intake opening (17) around described condensation chamber (20) and described condensation chamber (20) is lowered the temperature; First gas flow controller described in when described suction pump (4) is calmed the anger in described gas piping (15) or solenoid valve (2) are closed and described first injection port (5) is opened, make the whole main flumes be retained in described gas piping (15) enter into described condensation chamber (20) by described first injection port (5) thus and carry out condensation, and by uncondensed gas and a part of condensed fluid by the emptying of described shunting drain (6); Open described inert gas bottle (11) by described 3rd gas flow controller or solenoid valve (19) and in described vaporizer (8), pass into inert gas by described second air intake opening (21), gasification in the described glass bushing pipe (7) condensed fluid remaining after emptying being passed in described vaporizer (8), then the injection port (9) of temperature programme can enter in the described chromatographic column (12) in downstream and detect through described; The condensing condition of wherein said cold trap trapping device (16) and the testing conditions of described pick-up unit (22) are controlled by described external control unit outside (13).
7. the whole smoke trapping according to claim 5 or 6 and on-line analysis, is characterized in that, described pick-up unit is gas chromatograph-mass spectrometer (GCMS).
8. the whole smoke trapping according to claim 5 or 6 and on-line analysis, is characterized in that, the temperature of described main flume condensation is-160 DEG C ~ 0 DEG C.
9. the whole smoke trapping according to claim 5 or 6 and on-line analysis, is characterized in that, the gasification temperature in described vaporizer (8) is 100 DEG C-350 DEG C.
10. method according to claim 6, is characterized in that, by-the compressed air circulation of bleeding each time of described suction pump (4), realizes aspirating by mouth and carrying out on-line checkingi to whole compositions of the main flume in every a bite cigarette.
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| CN107449852A (en) * | 2016-05-30 | 2017-12-08 | 安捷伦科技有限公司 | By in a manner of the small influence in source stream road fluid samples shunt |
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| CN111964985A (en) * | 2019-05-20 | 2020-11-20 | 湖南中烟工业有限责任公司 | Device and method for trapping fresh smoke of cigarettes |
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