CN111220777A - Method for detecting tar release amount of cigarettes - Google Patents
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- CN111220777A CN111220777A CN202010073811.XA CN202010073811A CN111220777A CN 111220777 A CN111220777 A CN 111220777A CN 202010073811 A CN202010073811 A CN 202010073811A CN 111220777 A CN111220777 A CN 111220777A
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 16
- 241000208125 Nicotiana Species 0.000 claims abstract description 15
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 abstract description 10
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 238000000540 analysis of variance Methods 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- NDJKXXJCMXVBJW-UHFFFAOYSA-N heptadecane Chemical compound CCCCCCCCCCCCCCCCC NDJKXXJCMXVBJW-UHFFFAOYSA-N 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 229960002715 nicotine Drugs 0.000 description 2
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000005211 surface analysis Methods 0.000 description 1
- 238000010200 validation analysis Methods 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
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0068—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a computer specifically programmed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0078—Testing material properties on manufactured objects
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Combustion & Propulsion (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention relates to a method for detecting tar release amount of cigarettes, which is characterized in that after the cigarettes to be detected are balanced, the cigarette circumference, the cigarette length and the shredding width of the cigarettes to be detected are detected, and the detection results are substituted into the following models: 1/Sqrt (tar release amount) = 0.94996-0.050728A-5.69994E-004B + 0.084943C +2.98634E-005 AB +6.36659E-004 AC-4.87006E-004 BC + 8.78595E-004A2‑8.25814E‑006*B2‑0.026577*C2(ii) a A is the circumference of the cigarette, B is the length of the cigarette, and C is the width of the cut tobacco; and solving the model to obtain the tar release amount of the cigarette to be detected. The invention can quickly detect the tar release amount of the cigarette, does not need large instruments and organic reagents, and is easy to popularize and apply.
Description
Technical Field
The invention belongs to the technical field of cigarette detection, and particularly relates to a method for detecting tar release amount of cigarettes.
Background
Cigarette mainstream smoke is one of main contents for evaluating cigarette quality, and as China begins to fulfill the tobacco control framework convention, the accuracy of cigarette smoke analysis has a great influence on the disclosure of smoke release substances. The aerosol generated after the cigarette is burnt is divided into a gas phase part and a particle phase part, wherein the gas phase part accounts for about 92% of the weight of the whole smoke, and the gas phase part mainly comprises carbon monoxide, hydrocyanic acid, volatile aldehyde substances, volatile nitrosamine, chloroethylene, nitric oxide, ammonia, pyridine, gas phase free radicals and the like. The particulate phase portion accounts for about 8% of the total smoke weight and is composed primarily of nicotine, tar and moisture. As an important quality index in the mainstream smoke of cigarette products, the detection release amount of tar is generally determined according to a method specified in the standard GB/T19609-2004 under the environmental condition specified in GB/T16450-2004, wherein a large-scale instrument such as a gas chromatograph is required, the analysis step is complicated, the speed is slow, a large amount of chemical reagents are required, the cost is high, and the environment is easily polluted. Therefore, how to overcome the defects of the prior art is a problem to be solved urgently in the technical field of cigarette detection at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for detecting the tar release amount of cigarettes, which can quickly detect the tar release amount of the cigarettes, does not need large-scale instruments and organic reagents, and is easy to popularize and apply.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a method for detecting the tar release amount of cigarettes comprises the following steps:
after the cigarette to be detected is balanced, detecting the circumference, the length and the shredding width of the cigarette to be detected, and substituting the detected circumference, the detected length and the detected shredding width of the cigarette into the following model:
1/Sqrt (tar release amount) ═ 0.94996-0.050728A-5.69994E-004B + 0.084943C +2.98634E-005 AB +6.36659E-004 AC-4.87006E-004 BC + 8.78595E-004A2-8.25814E-006*B2-0.026577*C2；
Wherein A is the circumference of the cigarette, B is the length of the cigarette, C is the width of the cut tobacco, and the unit is mm;
and then, solving the model to obtain the tar release amount of the cigarette to be detected in unit mg/cigarette.
Further, it is preferable that the equilibrium condition is a temperature (22 ± 2) ° c; and (5) balancing for 48 hours in a constant temperature and humidity environment with humidity of 60 +/-5 percent.
Preferably, the model is suitable for detecting the tar release amount of the cigarette with the circumference of 17-27mm, the length of the cigarette of 74-100mm and the shredding width of 0.7-1.2 mm.
Compared with the prior art, the invention has the beneficial effects that:
the method for detecting the tar release amount of the cigarettes can quickly detect the tar release amount of the cigarettes without large-scale instruments and organic reagents, has the advantages of simple steps, high speed, low cost, accurate detection result and error of no more than 5 percent, greatly improves the detection efficiency, meets the detection requirements of most cigarettes, provides an important technical basis for effectively controlling the quality of the cigarettes, and is easy to popularize and apply.
Drawings
FIG. 1 is a contour diagram showing the effect of cigarette length and circumference on the tar release of cigarettes;
FIG. 2 is a graph showing the response curve of the effect of cigarette length and circumference on the tar release amount of cigarettes
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.
Example 1
A method for detecting the tar release amount of cigarettes comprises the following steps:
after the cigarette to be detected is balanced, detecting the circumference, the length and the shredding width of the cigarette to be detected, and substituting the detected circumference, the detected length and the detected shredding width of the cigarette into the following model:
1/Sqrt (tar release amount) ═ 0.94996-0.050728A-5.69994E-004B + 0.084943C +2.98634E-005 AB +6.36659E-004 AC-4.87006E-004 BC + 8.78595E-004A2-8.25814E-006*B2-0.026577*C2；
Wherein A is the circumference of the cigarette, B is the length of the cigarette, C is the width of the cut tobacco, and the unit is mm;
and then, solving the model to obtain the tar release amount of the cigarette to be detected in unit mg/cigarette.
The equilibrium condition is temperature (22 +/-2) DEG C; and (5) balancing for 48 hours in a constant temperature and humidity environment with humidity of 60 +/-5 percent.
1 experimental part
1.1 materials, reagents and instruments
1.1.1 Rolling of samples of different circumferences
The redried strip tobacco with the product number of YLKFCP03WDC3FYK316 produced in 2016 years is selected to be rolled in the same production place, the same grade and the same batch, so that the difference of detection results caused by the difference of tobacco leaf raw materials is avoided. In order to reduce the influence of auxiliary materials on smoke components as much as possible, the filter-free cigarette is used as a research target, so that the cigarette paper becomes a main factor influencing the smoke components. To ensure that all samples were analyzed and compared under the same conditions, HTLY Limited, project group commissioned a batch produced using the same machine with an air permeability of 50CU and a grammage of 32g/m2The straight rib wood pulp cigarette paper is cut into the cigarette paper with five specifications of 29.0mm, 26.5mm, 25.0mm, 22.2mm, 19.0mm and the like, and the influence of cigarette auxiliary materials is reduced to the minimum. In order to research the influence of the shredding width on the release amount of smoke components of cigarettes with different circumferences and lengths, six kinds of tobacco shreds with the shredding widths of 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm and 1.2mm are respectively prepared, and the moisture of the tobacco shreds is controlled to be (12.5 +/-0.5)%. Tobacco leaf shredding entrusts A cigarette factory and B cigarette factory to the sameThe production is finished on a silk production line. Each tobacco sample was at a temperature of (22 ± 2) ° c before rolling; the tobacco shreds are balanced for more than 48 hours in a constant temperature and humidity environment with humidity of 60 +/-5 percent, so that the moisture of the tobacco shreds is ensured to be consistent. Ensuring that the cigarette circumference of the project research covers all specifications and ranges of the entrusted production factory, and establishing the lofting scheme of the filter-free cigarettes with different circumferences, wherein the specifications of the cigarettes and the rolling enterprises are shown in a table 1.
TABLE 1 cigarette rolling scheme with different circumferences
1.1.2 preparation of cigarette samples of different lengths
Because the circumference and the length of each cigarette equipment are matched and fixed, cigarettes with different lengths corresponding to the circumferences cannot be rolled by the existing cigarette equipment. Therefore, the cigarettes with different circumferences rolled by the cigarette making machine are prepared into cigarettes with different lengths by adopting a manual cutting mode. Before preparation, appearance selection and quality selection are carried out on the samples. Before selection, the cigarette samples are all at the temperature (22 +/-2) DEG C; and (5) balancing for 48 hours in a constant temperature and humidity environment with humidity of 60 +/-5 percent. Firstly, appearance selection of cigarettes is carried out, and cigarettes with appearance defects such as empty ends, burst openings, breakage, collapse, edge warping, uneven hardness and the like are removed according to the national standard GB/T22838.2009. And then selecting the weight of the cigarettes with qualified appearance. In order to control the uniformity of cigarette weight and ensure the accuracy of smoke component detection, the weight is selected according to the range of the average weight of 50 cigarettes plus or minus 0.03 g. The selected cigarettes with different circumferences and different shredding widths, the appearances and the qualities of which meet the requirements, are prepared into cigarette samples with four specifications of cigarette lengths of 74mm, 84mm, 92mm and 100 mm.
1.1.3 reagents and instruments
Nicotine (more than or equal to 98.5 percent, national tobacco quality supervision and inspection center); carbon monoxide standard gas (C)>99.99%, national center for standards research); ethanol (pure in chromatography,merck, Germany), heptadecane (internal standard, ≧ 98.5%, TCI, USA), isopropanol (analytically pure, Kagaku chemical Co., Ltd.). M S204S electronic balance (sensory: 0.0001g, METTLER TOLEDO, Switzerland); a RM200A carousel-type smoking machine,
cambridge filter (Borgwaldt KC, germany); 7890A gas chromatograph (Agilent, USA); quantitative liquid filler (Brand, Germany); an HY-8 adjustable-speed oscillator (Guohua electric Co., Ltd., Changzhou).
1.2 methods
1.2.1 analysis of chemical indicators of cigarette mainstream Smoke
The cigarette samples were equilibrated at 22 + -1 deg.C and 60 + -2% relative humidity for 48h according to GB/T16447-2004. And respectively analyzing the tar release amount in the main stream smoke according to a national standard method.
1.2.2 data processing and analysis
Data statistics were performed using Design Expert (10.0.3) and Minitab (18.0) software, and different samples were analyzed by regression analysis, analysis of variance, significance testing, and response surface optimization.
The model is obtained by researching the influence of three independent variables of different cigarette circumferences (A), cigarette lengths (B) and tobacco cutting widths (C) and the interaction thereof on the release amount of tar in the cigarettes.
2 results and discussion
Some of the results of the tests using the national standard and the method of the invention are shown in Table 2.
TABLE 2
The invention then validates the model built, and part of the validation set data is shown in table 3.
TABLE 3
The invention has accurate detection result, the error is not more than 5%, meanwhile, the invention carries out variance analysis and significance test on the model and each variable, and the result is shown in table 4. As can be seen from Table 4, the model has significance, which indicates that the equation holds; the cigarette circumference (A) and the cigarette length (B) have significant positive correlation influence on the release amount of tar, wherein the positive correlation influence of the cigarette circumference on the tar is more significant, and the influence of the shredding width on the tar is not significant; in addition, the positive correlation influence of the 2 nd power of the circumference of the cigarette on tar is also obvious, which shows that the tar has not only linear influence but also nonlinear effect.
TABLE 4 regression equation and analysis of variance and significance test of variables
Note: "/" indicates that this item does not.
Meanwhile, a response surface model is constructed by adopting a Box-Behnken response surface design method, the model is a three-dimensional space curved surface diagram formed by test factors of the cigarette circumference (A), the cigarette length (B) and the shredding width (C), and the influence of the rest two variables on the tar release amount of the cigarette can be identified from a response surface analysis diagram, which is shown in the figure 1 and the figure 2. As can be seen from figures 1 and 2, the tar release of cigarettes increases with both factors, and the tar release of cigarettes tends to increase first and then slowly decrease. The contour line is in an oval shape, which indicates that the interaction of the two factors is strong; the contour line of the interaction between the cigarette circumference (A) and the cigarette length (B) is an ellipse, which shows that the interaction between the two factors is obvious. It can be seen from the three-dimensional space curved surface diagram, the influence of the tar release amount is in a parabolic shape, that is, the tar release amount of the cigarette is increased and then decreased along with the increase of the circumference (A) and the length (B) of the cigarette, so that the tar release amount can be increased by properly increasing the circumference (A) and the length (B) of the cigarette, which is consistent with the analysis.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A method for detecting the tar release amount of cigarettes is characterized by comprising the following steps:
after the cigarette to be detected is balanced, detecting the circumference, the length and the shredding width of the cigarette to be detected, and substituting the detected circumference, the detected length and the detected shredding width of the cigarette into the following model:
1/Sqrt (tar release amount) = 0.94996-0.050728A-5.69994E-004B + 0.084943C +2.98634E-005 AB +6.36659E-004 AC-4.87006E-004 BC + 8.78595E-004A2-8.25814E-006*B2-0.026577*C2；
Wherein A is the circumference of the cigarette, B is the length of the cigarette, C is the width of the cut tobacco, and the unit is mm;
and then, solving the model to obtain the tar release amount of the cigarette to be detected in unit mg/cigarette.
2. The method for detecting the tar release amount of the cigarettes according to claim 1, wherein the equilibrium condition is temperature (22 ± 2) ° c; and (5) balancing for 48 hours in a constant temperature and humidity environment with humidity of 60 +/-5 percent.
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| CN202010073811.XA CN111220777A (en) | 2020-01-22 | 2020-01-22 | Method for detecting tar release amount of cigarettes |
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Cited By (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112949223A (en) * | 2021-03-17 | 2021-06-11 | 红云红河烟草(集团)有限责任公司 | Method for optimizing material passing time of cut-tobacco drier based on DOE response surface method |
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