CN109799297A - A kind of construction method and its regulation method of cigarette smoke pH regulation-control model - Google Patents
A kind of construction method and its regulation method of cigarette smoke pH regulation-control model Download PDFInfo
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 186
- 239000000779 smoke Substances 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000033228 biological regulation Effects 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title claims abstract description 19
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 claims abstract description 208
- 229960002715 nicotine Drugs 0.000 claims abstract description 207
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 claims abstract description 207
- 239000008187 granular material Substances 0.000 claims abstract description 41
- 239000000126 substance Substances 0.000 claims abstract description 41
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 241000208125 Nicotiana Species 0.000 claims abstract description 18
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000009472 formulation Methods 0.000 claims abstract description 8
- 238000010219 correlation analysis Methods 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 28
- 239000003546 flue gas Substances 0.000 claims description 22
- 239000007789 gas Substances 0.000 claims description 18
- 239000000284 extract Substances 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 11
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000611 regression analysis Methods 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 claims description 7
- 238000004587 chromatography analysis Methods 0.000 claims description 4
- 239000012159 carrier gas Substances 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 49
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 230000029219 regulation of pH Effects 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 229930013930 alkaloid Natural products 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 238000001139 pH measurement Methods 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- -1 n-heptadecane-chloroform Chemical compound 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 230000001373 regressive effect Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The invention discloses a kind of construction method of cigarette smoke pH regulation-control model and its regulation methods, belong to technical field of cigarettes, construction method includes the following steps: the content of different shape nicotine in single-tobacco-typed cigarette contained by (1) measurement cigarette sample and tobacco leaf formulation；(2) cigarette sample smoke pH is measured；(3) correlation analysis is carried out to the content of different shape nicotine in cigarette sample and smoke pH, obtains regression equation Y1=5.793+0.811X2- 0.803X4, Y2=5.769+0.754X2- 0.674X4, the as regulation-control model of cigarette smoke pH.A kind of regulation method of cigarette smoke pH, determination need cigarette sample granule phase substance pH value Y1, full smoke pH Y2Target value, substitute into regulation-control model, obtain free nicotine X2, free nicotine/total nicotine X4；The single-tobacco-typed cigarette ratio for needing to adjust in cigarette sample is calculated, achievees the purpose that regulate and control cigarette smoke pH.The present invention can effectively screen raw material of cigarette, and the pH of regulation cigarette smoke, Improving The Quality of Products are realized by the quick adjustment of tobacco leaf formulation.
Description
Technical field
The invention belongs to technical field of cigarettes, and in particular to a kind of construction method and its tune of cigarette smoke pH regulation-control model
Prosecutor method.
Background technique
Smoke pH is one of the overall target of cigarette total quality reflection, can chemical composition in concentrated expression cigarette composition
And chemical balance, while being also an important parameter of smoking property of cigarette quality, only flue gas acid-base property is coordinated, the sense organ product of cigarette
Matter can just reach optimal effect, and otherwise, the flavor and taste of cigarette will appear problem.Therefore, skill is regulated and controled to cigarette mainstream flue gas pH
Art research has been to be concerned by more and more people.
Nicotine is the distinctive ingredient of tobacco, is a kind of volatile, alkaline stronger pyridine race alkaloid, is easy to a variety of inorganic
Acid and organic acid are combined into salt, and existence and environment pH are closely related.Performance Liquid Chromatography Analysis for Nicotine in Tobacco accounts for nicotiana alkaloids total amount
95% or more, in tobacco and flue gas, most of nicotine is combined into salt with organic acid to be existed with protonated form, and non-protonated
Free nicotine content is relatively fewer, and with the enhancing of tobacco and flue gas alkalinity, non-protonated nicotine content increases.
Jin Yongcan etc. has studied the measuring method of cigarette smoke granule phase substance pH.Compare different extraction times, different distillations
The influence of water volume and different extraction modes to cigarette smoke granule phase substance pH measurement result, so that it is determined that cigarette smoke granule phase substance
The measuring method of pH, method relative standard deviation are 0.24~0.45%.
Liu waits quietly analyzing commercially available blended type cigarette using flue gas primary analysis method.Have studied domestic and international mixing
The correlation of the pH of type cigarette mainstream flue gas, smoke's total particulate matter (TPM) and carbon monoxide (CO).The result shows that: mixed type
The pH of cigarette declines with the increase of total granules (TPM) and carbon monoxide (CO), and carbon monoxide (CO) is with total granules (TPM)
Increase and increase.
At present for flue gas pH study limitation in the measuring method and its influence factor of pH, in relation to regulation cigarette smoke pH's
Method report is less.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of construction method of cigarette smoke pH regulation-control model and its regulations
Method.It can be adjusted for the uncoordinated cigarette of flue gas pH using the present invention, improve the organoleptic quality of cigarette.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of cigarette smoke pH regulation-control model
Construction method, the construction method include the following steps:
(1) content of different shape nicotine in single-tobacco-typed cigarette contained by multiple trade mark cigarette samples and tobacco leaf formulation is measured；Measurement
Cigarette sample in, 1.5~2.5%, free nicotine content exists 0.2~0.8% in conjunction with nicotine content total nicotine content
1.0~2.0%, free nicotine/total nicotine is 0.12~0.40；
In single-tobacco-typed cigarette, total nicotine content is 1.0~3.5%, and free nicotine content is 0.1~0.6%, in conjunction with nicotine content
0.3~3.0%, free nicotine/total nicotine is 0.11~0.45；
(2) measure multiple trade mark cigarette sample smoke pHs: the total particulate matter in mainstream smoke pH value of cigarette sample 5.80~
6.20, gas gas-phase objects pH value is 5.00~6.10, and full smoke pH is 5.80~6.20；
(3) correlation analysis, including simple phase are carried out to the content of different shape nicotine in cigarette sample and smoke pH
The analysis of closing property and stepwise regression analysis showed；
The nicotine of stepwise regression analysis showed different shape using in cigarette sample is as independent variable X: total nicotine X1, free cigarette
Alkali X2, in conjunction with nicotine X3, free nicotine/total nicotine X4, smoke pH is dependent variable Y: granule phase substance pH value Y1, full smoke pH Y2,
Stepwise regression analysis showed is carried out, regression equation Y is obtained1=5.793+0.811X2-0.803X4, Y2=5.769+0.754X2-
0.674X4, above-mentioned regression equation is the regulation-control model of cigarette smoke pH.
Further, the pre-treating method of step (1) the total nicotine measurement is carried out referring to YC/T 246-2008.Further,
Measurement of the pre-treating method of step (1) the free nicotine measurement referring to patent CN 101949903A Free Nicotine in Tobacco
Method carries out.
Further, the content assaying method of step (1) nicotine be gas chromatographic analysis, analysis condition are as follows: chromatographic column:
HP-5MS type, sample volume are 1 μ L, and carrier gas is helium, and flow velocity 1.5mL/min, injector temperature is 250 DEG C, split ratio 10:
1, temperature programming condition: 110 DEG C, 2min, 10 DEG C/min is kept to be raised to 260 DEG C, keep 10min, then with the rate of 10 DEG C/min
260 DEG C are risen to, 5min is kept.
Further, the measuring method of step (2) the cigarette sample smoke pH is as follows: aspirating 20 volumes by standard conditions
Cigarette sample traps granule phase substance and gas gas-phase objects simultaneously by the way of cambridge filter and series connection absorption bottle, is put into volume in absorption bottle
Than the isopropanol and 20~100mL of water for 1:1；After to be pumped, filter disc is transferred in conical flask A, volume ratio, which is added, is
The isopropanol and 50~100mL of water, 0.5~1h of oscillation extraction of 1:1, measuring extract liquor pH value is granule phase substance pH value；Merge and absorbs
For extract liquor in conical flask B, measuring pH value is gas gas-phase objects pH value in bottle；Extract liquor in cambridge filter and absorption bottle is transferred to
It is mixed in conical flask C, 0.5~1h of oscillation extraction, measuring extract liquor pH value is full smoke pH.
Further, step (3) the simple correlation analysis is that different shape nicotine and smoke pH are carried out bilateral to show
The analysis of work property, obtains different shape nicotine and gas gas-phase objects pH value non-correlation, free nicotine and free nicotine/total nicotine and grain phase
Object pH value Y1, full smoke pH Y2In extremely significant positive correlation.
Further, step (1) cigarette sample is blended type cigarette sample, and trade mark quantity is 17.
The cigarette smoke for the construction method progress based on above-mentioned cigarette smoke pH regulation-control model that the present invention also provides a kind of
The regulation method of pH, the regulation method include the following steps:
(1) detect: detect the free nicotine content of cigarette sample to be regulated and controled, free nicotine/total nicotine, granule phase substance pH value,
Full smoke pH；
(2) regulate and control: determination needs cigarette sample granule phase substance pH value Y1, full smoke pH Y2Target value, substitute into regulation
Model obtains cigarette sample free nicotine content X adjusted2, free nicotine/total nicotine X4；
The cigarette sample free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4With practical inspection
Cigarette sample free nicotine content, the free nicotine/total nicotine content difference of survey, are calculated and need to adjust in cigarette sample
Single-tobacco-typed cigarette ratio, achieve the purpose that regulate and control cigarette smoke pH.
In the present invention, the pre-treating method of total nicotine measurement is carried out referring to YC/T 246-2008；Before free nicotine measurement
Processing method is carried out referring to the measuring method of 101949903 A Free Nicotine in Tobacco of patent CN.
The beneficial effects of adopting the technical scheme are that 1, the present invention disclose pipe tobacco in different shape nicotine with
The related law of flue gas pH realizes and adjusts flue gas pH by adjusting nicotine content in cigarette tobacco leaf formulation, improves flue gas
The harmony of soda acid improves smoking property of cigarette quality.2, the present invention can effectively screen raw material of cigarette, pass through tobacco leaf formulation
Quickly the pH of regulation cigarette smoke is realized in adjustment, improves cigarette product development efficiency, Improving The Quality of Products.
Specific embodiment
Effect in order to explain the present invention in detail, it is described in further detail to the present invention below with reference to embodiment, but
It does not limit the scope of the invention.
Embodiment 1
The present embodiment provides a kind of construction method of cigarette smoke pH regulation-control model and its regulation methods, specifically include following
Step:
(1) it measures the content of different shape nicotine in multiple trade mark cigarette samples and tobacco leaf formulation single-tobacco-typed cigarette: choosing 17
The cigarette sample of the different trades mark, testing result are shown in Table 1.
The pre-treatment of total nicotine measurement is that cigarette peels off taking-up pipe tobacco, is ground into 40 mesh powder, 1g is added in conical flask
Offal, addition 10mL concentration are 8mol/L sodium hydroxide solution, 20mL water and 40mL n-hexane, and oscillation extraction 1h takes extract liquor
1mL crosses 0.45 μm of filter membrane, carries out gas chromatographic analysis；
The pre-treatment of free nicotine measurement is that 1g offal sample is placed in conical flask, vibrates extraction after the mixing of 30mL water is added
0.5h is taken, filters, takes 10mL filtrate in separatory funnel, it is that 0.3mg/mL n-heptadecane-chloroform is molten that 20mL concentration, which is added,
Liquid extracts 3 times, merges organic phase, and extract liquor 1mL is taken to cross 0.45 μm of filter membrane, carries out gas chromatographic analysis；
The analytical conditions for gas chromatography of nicotine are as follows: chromatographic column: HP-5MS type (30m × 0.25mm × 0.25 μm), sample volume
For 1 μ L, carrier gas is helium, and flow velocity 1.5mL/min, injector temperature is 250 DEG C, split ratio 10:1, temperature programming condition:
110 DEG C, 2min, 10 DEG C/min is kept to be raised to 260 DEG C, keeps 10min, then rise to 260 DEG C with the rate of 10 DEG C/min, keep
5min；
(2) multiple trade mark cigarette sample smoke pHs are measured: aspirating 17 cigarette samples by standard conditions, is filtered using Cambridge
The mode of piece and series connection absorption bottle traps granule phase substance and gas gas-phase objects simultaneously, and 50mL isopropanol and 50mL water is added in absorption bottle；To
After suction, filter disc is transferred in conical flask A, 50mL isopropanol is added and 50mL water, oscillation extraction 0.5h measure extraction
Liquid pH value is granule phase substance pH value, the results are shown in Table 2；Merging extract liquor in absorption bottle, in conical flask B, measuring pH value is gas gas-phase objects pH
Value；Extract liquor in cambridge filter and absorption bottle is transferred in conical flask C and is mixed, oscillation extraction 0.5h measures extract liquor pH
Value is full smoke pH, the results are shown in Table 2；
(3) using simple correlation and multiple stepwise regression analysis method to the correlation of nicotine form and flue gas pH into
Row research, analysis the results are shown in Table 3, table 4.Simple correlation analysis result obtains free nicotine and free nicotine/total nicotine and grain
Phase object, full smoke pH are in extremely significant positive correlation；Granule phase substance pH value Y is further studied in regression analysis1, full smoke pH Y2With trip
From nicotine X2With free nicotine/total nicotine X4Relationship, obtaining regression equation is respectively Y1=5.793+0.811X2-0.803X4,
Y2=5.769+0.754X2-0.674X4, and obtain free nicotine to granule phase substance, full smoke pH shadow by standardized regression coefficient
Sound is more significant；
On the basis of the cigarette smoke pH regulation-control model constructed by the above method, by taking cigarette sample 1 as an example, cigarette is carried out
The regulation of flue gas pH, specifically includes the following steps:
(1) detect: by above-mentioned correlation analysis result it is found that free nicotine on flue gas pH have significantly affect, with cigarette sample
For product 1, free nicotine content 0.418, the free nicotine/total nicotine 0.229 of cigarette sample 1 to be regulated and controled, granule phase substance pH are detected
Value 5.984, full smoke pH 5.898；
(2) regulate and control: according to obtained granule phase substance pH value, full smoke pH is detected, determining that cigarette sample needs the grain of regulation
Phase object pH value Y1Target value be 6.000, full smoke pH Y2Target value be 6.100, substitute into regulation-control model Y1=5.793+
0.811X2-0.803X4, Y2=5.769+0.754X2-0.674X4, obtain the free nicotine content X adjusted of cigarette sample 12It answers
For 0.471, free nicotine/total nicotine X4It should be 0.213；
The free nicotine content X being calculated according to regulation-control model1, free nicotine/total nicotine X2Dissociate with actually detected
Nicotine content, free nicotine/total nicotine content difference, according to contained single-tobacco-typed cigarette different shape nicotine in cigarette sample 1 in table 5
Assay is as a result, will be with predicted value X2、X4The ratio of the single-tobacco-typed cigarette 1c that content is closer in formula is adjusted to 3% by 1%, adjusts
Smoke pH measured value is shown in Table 6 after whole.
1 cigarette sample different shape nicotine content measurement result of table
2 cigarette sample smoke pH measurement result of table
The simple correlation of 3 cigarette sample nicotine form of table and flue gas pH analyze result
| Index | Total nicotine (%) | Free nicotine (%) | In conjunction with nicotine (%) | Free nicotine/total nicotine |
| Granule phase substance pH | 0.167 | 0.783** | -0.363 | 0.678** |
| Gas gas-phase objects pH | 0.277 | -0.241 | 0.353 | -0.288 |
| Full flue gas pH | 0.136 | 0.866** | -0.437 | 0.763** |
Note: * * indicates significant on 0.01 horizontal (bilateral)；* indicate significant on 0.05 horizontal (bilateral).
The multivariate regressive analysis of table 4 cigarette sample nicotine form and granule phase substance pH and full flue gas pH
Contained single-tobacco-typed cigarette different shape nicotine content measurement result in 5 cigarette sample 1 of table
The pH value variation of 6 cigarette sample 1 of table adjustment front and back
| Granule phase substance pH | Full flue gas pH | |
| PH value is surveyed before adjustment | 5.984 | 5.898 |
| Target ph after adjustment | 6.000 | 6.100 |
| PH value is surveyed after adjustment | 6.012 | 6.098 |
| Relative error | 0.20% | 0.03% |
Embodiment 2
According to the cigarette smoke pH regulation-control model provided in embodiment 1, now by taking cigarette sample 2 as an example, cigarette smoke is carried out
The regulation of pH, the specific method is as follows:
(1) it detects: detecting free nicotine content 0.630, the free nicotine/total nicotine 0.296 of cigarette sample 2 to be regulated and controled,
Granule phase substance pH value 5.992, full smoke pH 6.023；
(2) regulate and control: according to obtained granule phase substance pH value, full smoke pH is detected, determining that cigarette sample needs the grain of regulation
Phase object pH value Y1Target value be 5.900, full smoke pH Y2Target value be 5.900, substitute into regulation-control model Y1=5.793+
0.811X2-0.803X4, Y2=5.769+0.754X2-0.674X4, obtain the free nicotine content X adjusted of cigarette sample 22It answers
For 0.356, free nicotine/total nicotine X4It should be 0.213；
The free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4Dissociate with actually detected
Nicotine content, free nicotine/total nicotine content difference, according to contained single-tobacco-typed cigarette different shape nicotine in cigarette sample 2 in table 7
Assay is as a result, will be with predicted value X2、X4The ratio of the single-tobacco-typed cigarette 2d that content is closer in formula is adjusted to 2% by 5%, adjusts
Smoke pH measured value is shown in Table 8 after whole.
Contained single-tobacco-typed cigarette different shape nicotine content measurement result in 7 cigarette sample 2 of table
| Sample code name | Free nicotine (%) | Free nicotine/total nicotine |
| 2a | 0.401 | 0.160 |
| 2b | 0.340 | 0.188 |
| 2c | 0.308 | 0.228 |
| 2d | 0.355 | 0.224 |
| 2e | 0.484 | 0.424 |
| 2f | 0.321 | 0.132 |
| 2g | 0.269 | 0.133 |
| 2h | 0.335 | 0.269 |
| 2i | 0.417 | 0.236 |
| 2j | 0.450 | 0.174 |
| 2k | 0.418 | 0.137 |
| 2m | 0.287 | 0.241 |
| 2l | 0.333 | 0.190 |
| 2n | 0.252 | 0.242 |
The pH value variation of 8 cigarette sample 2 of table adjustment front and back
| Granule phase substance pH | Full flue gas pH | |
| PH value is surveyed before adjustment | 5.992 | 6.023 |
| Target ph after adjustment | 5.900 | 5.900 |
| PH value is surveyed after adjustment | 5.898 | 5.925 |
| Relative error | 0.03% | 0.42% |
Embodiment 3
According to the cigarette smoke pH regulation-control model provided in embodiment 1, now by taking cigarette sample 3 as an example, cigarette smoke is carried out
The regulation of pH, the specific method is as follows:
(1) it detects: detecting free nicotine content 0.565, the free nicotine/total nicotine 0.274 of cigarette sample 3 to be regulated and controled,
Granule phase substance pH value 6.105, full smoke pH 6.043；
(2) regulate and control: according to obtained granule phase substance pH value, full smoke pH is detected, determining that cigarette sample needs the grain of regulation
Phase object pH value Y1Target value be 5.800, full smoke pH Y2Target value be 5.800, substitute into regulation-control model Y1=5.793+
0.811X2-0.803X4, Y2=5.769+0.754X2-0.674X4, obtain the free nicotine content X adjusted of cigarette sample 32It answers
For 0.321, free nicotine/total nicotine X4It should be 0.267；
The free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4Dissociate with actually detected
Nicotine content, free nicotine/total nicotine content difference, according to contained single-tobacco-typed cigarette different shape nicotine in cigarette sample 3 in table 9
Assay is as a result, will be with predicted value X2、X4The ratio of the single-tobacco-typed cigarette 3c that content is closer in formula is adjusted to 1% by 4%, adjusts
Smoke pH measured value is shown in Table 10 after whole.
Contained single-tobacco-typed cigarette different shape nicotine content measurement result in 9 cigarette sample 3 of table
| Code name | Free nicotine (%) | Free nicotine/total nicotine |
| 3a | 0.421 | 0.172 |
| 3b | 0.354 | 0.198 |
| 3c | 0.318 | 0.268 |
| 3d | 0.375 | 0.234 |
| 3e | 0.474 | 0.454 |
| 3f | 0.341 | 0.145 |
| 3g | 0.281 | 0.143 |
| 3h | 0.365 | 0.283 |
| 3i | 0.527 | 0.254 |
| 3j | 0.470 | 0.182 |
| 3k | 0.428 | 0.157 |
| 3m | 0.298 | 0.271 |
| 3l | 0.353 | 0.201 |
| 3n | 0.272 | 0.272 |
The pH value variation of 10 cigarette sample 3 of table adjustment front and back
Embodiment 4
According to the cigarette smoke pH regulation-control model provided in embodiment 1, now by taking cigarette sample 4 as an example, cigarette smoke is carried out
The regulation of pH, the specific method is as follows:
(1) it detects: detecting free nicotine content 0.578, the free nicotine/total nicotine 0.275 of cigarette sample 4 to be regulated and controled,
Granule phase substance pH value 6.010, full smoke pH 5.995；
(2) regulate and control: according to obtained granule phase substance pH value, full smoke pH is detected, determining that cigarette sample needs the grain of regulation
Phase object pH value Y1Target value be 6.100, full smoke pH Y2Target value be 6.050, substitute into regulation-control model Y1=5.793+
0.811X2-0.803X4, Y2=5.769+0.754X2-0.674X4, obtain the free nicotine content X adjusted of cigarette sample 42It answers
For 0.508, free nicotine/total nicotine X4It should be 0.134；
The free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4Dissociate with actually detected
Nicotine content, free nicotine/total nicotine content difference, according to contained single-tobacco-typed cigarette different shape cigarette in cigarette sample 4 in table 11
Alkali content measurement result, will be with predicted value X2、X4The ratio of the single-tobacco-typed cigarette 4c that content is closer in formula is adjusted to 4% by 2%,
Smoke pH measured value is shown in Table 12 after adjustment.
Contained single-tobacco-typed cigarette different shape nicotine content measurement result in 11 cigarette sample 4 of table
| Code name | Free nicotine (%) | Free nicotine/total nicotine |
| 4a | 0.285 | 0.190 |
| 4b | 0.315 | 0.280 |
| 4c | 0.504 | 0.132 |
| 4d | 0.460 | 0.207 |
| 4e | 0.269 | 0.159 |
| 4f | 0.229 | 0.193 |
| 4g | 0.270 | 0.159 |
| 4h | 0.238 | 0.137 |
| 4i | 0.199 | 0.174 |
The pH value variation of 12 cigarette sample 4 of table adjustment front and back
Embodiment 5
According to the cigarette smoke pH regulation-control model provided in embodiment 1, now by taking cigarette sample 5 as an example, cigarette smoke is carried out
The regulation of pH, the specific method is as follows:
(1) it detects: detecting free nicotine content 0.495, the free nicotine/total nicotine 0.230 of cigarette sample 5 to be regulated and controled,
Granule phase substance pH value 6.052, full smoke pH 5.957；
(2) regulate and control: according to obtained granule phase substance pH value, full smoke pH is detected, determining that cigarette sample needs the grain of regulation
Phase object pH value Y1Target value be 5.800, full smoke pH Y2Target value be 5.800, substitute into regulation-control model Y1=5.793+
0.811X2-0.803X4, Y2=5.769+0.754X2-0.674X4, obtain the free nicotine content X adjusted of cigarette sample 52It answers
For 0.267, free nicotine/total nicotine X4It should be 0.241；
The free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4Dissociate with actually detected
Nicotine content, free nicotine/total nicotine content difference, according to contained single-tobacco-typed cigarette different shape cigarette in cigarette sample 5 in table 13
Alkali content measurement result, will be with predicted value X2、X4The ratio of the single-tobacco-typed cigarette 5j that content is closer in formula is adjusted to 2% by 5%,
Smoke pH measured value is shown in Table 14 after adjustment.
Contained single-tobacco-typed cigarette different shape nicotine content measurement result in 13 cigarette sample 5 of table
The pH value variation of 14 cigarette sample 5 of table adjustment front and back
| Granule phase substance pH | Full flue gas pH | |
| PH value is surveyed before adjustment | 6.052 | 5.957 |
| Target ph after adjustment | 5.800 | 5.800 |
| PH value is surveyed after adjustment | 5.842 | 5.822 |
| Relative error | 0.72% | 0.38% |
Embodiment 6
According to the cigarette smoke pH regulation-control model provided in embodiment 1, now by taking cigarette sample 6 as an example, cigarette smoke is carried out
The regulation of pH, the specific method is as follows:
(1) it detects: detecting free nicotine content 0.564, the free nicotine/total nicotine 0.337 of cigarette sample 6 to be regulated and controled,
Granule phase substance pH value 5.979, full smoke pH 5.967；
(2) regulate and control: according to obtained granule phase substance pH value, full smoke pH is detected, determining that cigarette sample needs the grain of regulation
Phase object pH value Y1Target value be 6.150, full smoke pH Y2Target value be 6.100, substitute into regulation-control model Y1=5.793+
0.811X2-0.803X4, Y2=5.769+0.754X2-0.674X4, obtain the free nicotine content X adjusted of cigarette sample 62It answers
For 0.554, free nicotine/total nicotine X4It should be 0.132；
The free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4Dissociate with actually detected
Nicotine content, free nicotine/total nicotine content difference, according to contained single-tobacco-typed cigarette different shape cigarette in cigarette sample 6 in table 15
Alkali content measurement result, will be with predicted value X2、X4The ratio of the single-tobacco-typed cigarette 6a that content is closer in formula is adjusted to 4% by 3%,
Smoke pH measured value is shown in Table 16 after adjustment.
Contained single-tobacco-typed cigarette different shape nicotine content measurement result in 15 cigarette sample 6 of table
The pH value variation of 16 cigarette sample 6 of table adjustment front and back
| Granule phase substance pH | Full flue gas pH | |
| PH value is surveyed before adjustment | 5.979 | 5.967 |
| Target ph after adjustment | 6.150 | 6.100 |
| PH value is surveyed after adjustment | 6.162 | 6.103 |
| Relative error | 0.20% | 0.05% |
Above-described embodiment shows different shape nicotine and gas gas-phase objects pH value non-correlation, free nicotine and free nicotine/total
Nicotine and granule phase substance, full smoke pH are in extremely significant positive correlation；Free nicotine influences granule phase substance, full smoke pH more significant.
By adjusting in tobacco leaf formulation with predicted value X2、X4The ratio for the single-tobacco-typed cigarette that content is closer to 1~5% come to cigarette composition into
Row adjustment, cigarette smoke pH target value and measured value relative error are smaller after adjustment, and model prediction result is more accurate.
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although referring to above-described embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that: still the present invention can be modified or be waited
With replacement, without departing from the spirit or scope of the invention, or any substitutions, should all cover in power of the invention
In sharp claimed range.
Claims (8)
1. a kind of construction method of cigarette smoke pH regulation-control model, which is characterized in that the construction method includes the following steps:
(1) content of different shape nicotine in single-tobacco-typed cigarette contained by multiple trade mark cigarette samples and tobacco leaf formulation is measured；The volume of measurement
In cigarette sample, total nicotine content 1.5~2.5%, free nicotine content 0.2~0.8%, in conjunction with nicotine content 1.0~
2.0%, free nicotine/total nicotine is 0.12~0.40；
In single-tobacco-typed cigarette, 1.0~3.5%, free nicotine content exists 0.1~0.6% in conjunction with nicotine content total nicotine content
0.3~3.0%, free nicotine/total nicotine is 0.11~0.45；
(2) measure multiple trade mark cigarette sample smoke pHs: the total particulate matter in mainstream smoke pH value of cigarette sample 5.80~6.20,
Gas gas-phase objects pH value is 5.00~6.10, and full smoke pH is 5.80~6.20；
(3) correlation analysis, including simple correlation are carried out to the content of different shape nicotine in cigarette sample and smoke pH
Analysis and stepwise regression analysis showed；
The nicotine of stepwise regression analysis showed different shape using in cigarette sample is as independent variable X: total nicotine X1, free nicotine X2、
In conjunction with nicotine X3, free nicotine/total nicotine X4, smoke pH is dependent variable Y: granule phase substance pH value Y1, full smoke pH Y2, carry out
Stepwise regression analysis showed obtains regression equation Y1=5.793+0.811X2- 0.803X4, Y2=5.769+0.754X2?
0.674X4, above-mentioned regression equation is the regulation-control model of cigarette smoke pH.
2. a kind of construction method of cigarette smoke pH regulation-control model according to claim 1, which is characterized in that the step
(1) pre-treating method of total nicotine measurement is carried out referring to YC/T246-2008.
3. a kind of construction method of cigarette smoke pH regulation-control model according to claim 1, which is characterized in that the step
(1) pre-treating method of free nicotine measurement is carried out referring to the measuring method of patent CN101949903A Free Nicotine in Tobacco.
4. a kind of construction method of cigarette smoke pH regulation-control model according to claim 1 to 3, feature exist
In the content assaying method of, step (1) nicotine be gas chromatographic analysis, analysis condition are as follows: chromatographic column: HP-5MS type, into
Sample amount is 1 μ L, and carrier gas is helium, and flow velocity 1.5mL/min, injector temperature is 250 DEG C, split ratio 10:1, temperature programming
Condition: 110 DEG C, keeping 2min, 10 DEG C/min to be raised to 260 DEG C, keep 10min, then rise to 260 DEG C with the rate of 10 DEG C/min,
Keep 5min.
5. a kind of construction method of cigarette smoke pH regulation-control model according to claim 1 to 3, feature exist
In the measuring method of step (2) the cigarette sample smoke pH is as follows: aspirating 20 cigarette samples by standard conditions, use
The mode of cambridge filter and series connection absorption bottle traps granule phase substance and gas gas-phase objects simultaneously, and it is the different of 1:1 that volume ratio is put into absorption bottle
Propyl alcohol and 20~100mL of water；After to be pumped, filter disc is transferred in conical flask A, the isopropanol that volume ratio is 1:1 is added
With 50~100mL of water, 0.5~1h of oscillation extraction, measuring extract liquor pH value is granule phase substance pH value；Merge absorption bottle in extract liquor in
In conical flask B, measuring pH value is gas gas-phase objects pH value；Extract liquor in cambridge filter and absorption bottle is transferred in conical flask C and is mixed
It closes, 0.5~1h of oscillation extraction, measuring extract liquor pH value is full smoke pH.
6. a kind of construction method of cigarette smoke pH regulation-control model according to claim 1 to 3, feature exist
In step (3) the simple correlation analysis is that different shape nicotine and smoke pH are carried out two-sided significance analysis, is obtained
Different shape nicotine and gas gas-phase objects pH value non-correlation, free nicotine and free nicotine/total nicotine and granule phase substance pH value Y1, full cigarette
Gas pH value Y2In extremely significant positive correlation.
7. a kind of construction method of cigarette smoke pH regulation-control model according to claim 1 to 3, feature exist
In step (1) cigarette sample is blended type cigarette sample, and trade mark quantity is 17.
8. the volume that the construction method based on a kind of cigarette smoke pH regulation-control model described in claim 1-7 any one carries out
The regulation method of cigarette flue gas pH, which is characterized in that the regulation method includes the following steps:
(1) it detects: detecting free nicotine content, free nicotine/total nicotine, the granule phase substance pH value, full cigarette of cigarette sample to be regulated and controled
Gas pH value；
(2) regulate and control: determination needs cigarette sample granule phase substance pH value Y1, full smoke pH Y2Target value, substitute into regulation mould
Type obtains cigarette sample free nicotine content X adjusted2, free nicotine/total nicotine X4；
The cigarette sample free nicotine content X being calculated according to regulation-control model2, free nicotine/total nicotine X4With it is actually detected
Cigarette sample free nicotine content, free nicotine/total nicotine content difference, are calculated the list for needing to adjust in cigarette sample
Expect cigarette ratio, achievees the purpose that regulate and control cigarette smoke pH.
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