CN110679983B - Reconstituted tobacco coating liquid purity detection method based on composite washing technology - Google Patents
Reconstituted tobacco coating liquid purity detection method based on composite washing technology Download PDFInfo
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- CN110679983B CN110679983B CN201911118313.6A CN201911118313A CN110679983B CN 110679983 B CN110679983 B CN 110679983B CN 201911118313 A CN201911118313 A CN 201911118313A CN 110679983 B CN110679983 B CN 110679983B
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- washing
- coating liquid
- treatment
- reconstituted tobacco
- detection method
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- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 238000005406 washing Methods 0.000 title claims abstract description 34
- 239000011248 coating agent Substances 0.000 title claims abstract description 33
- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 241000208125 Nicotiana Species 0.000 title claims abstract description 24
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002244 precipitate Substances 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005119 centrifugation Methods 0.000 claims description 28
- 238000001035 drying Methods 0.000 claims description 10
- 235000019441 ethanol Nutrition 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 2
- 239000013049 sediment Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention provides a reconstituted tobacco coating liquid purity detection method based on a composite washing technology, which is characterized in that the coating liquid is diluted firstly to reduce the liquid viscosity and improve the solid-liquid separation effect in the centrifugal process; in the process of multiple centrifugal washing, the sediment is washed by clear water, so that the influence of water-soluble components carried in wet sediment on the result accuracy can be reduced as much as possible; the precipitate is washed by absolute ethyl alcohol, so that the influence of alcohol-soluble components carried in wet precipitate on the result accuracy can be reduced to the greatest extent; and finally, washing the precipitate by using ether, so that the influence of oil-soluble components carried in wet precipitate on the accuracy of the result can be reduced as much as possible. The detection method of the invention is simple, easy to implement, less in sampling amount and accurate in result.
Description
Technical Field
The invention relates to the technical field of paper-making reconstituted tobacco,
in particular to a reconstituted tobacco coating liquid purity detection method based on a composite washing technology.
Background
The domestic paper-making method reconstituted tobacco is usually produced by adopting a two-step method, the effective components of tobacco are fully soaked by adopting a solvent, then the tobacco extract is concentrated and backfilled on a tobacco substrate, and the key production procedures comprise the processes of extraction, concentration, pulping, papermaking, coating and the like. The purity of the coating liquid is indirectly characterized by the slag content, and the detection method is to directly filter the coating liquid by using an 80-mesh stainless steel screen and then take the difference value of the solid contents of the coating liquid before and after filtering as the slag content. There are several problems with this approach: firstly, the screen mesh is easy to block, which results in poor filtering effect, secondly, the solid content of the coating liquid after filtering is higher than that before filtering, and thirdly, the measured data can not reflect the real level faithfully because the filter residue contains a small amount of water-soluble, alcohol-soluble and oil-soluble coating liquid.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a reconstituted tobacco coating liquid purity detection method based on a composite washing technology.
In order to solve the problems, the invention adopts the following technical scheme:
a reconstituted tobacco coating liquid purity detection method based on a composite washing technology comprises the following steps:
(1) adding water into the reconstituted tobacco coating liquid for diluting by M times, weighing two diluted coating liquid samples with the mass of a and b respectively, placing the two samples into two dried constant-weight No. 1 and No. 2 centrifuge tubes respectively for carrying out first centrifugation treatment, and reserving precipitates; wherein M is a positive integer greater than or equal to 4, the mass of the No. 1 centrifugal tube is c grams, and the mass of the No. 2 centrifugal tube is d grams;
(2) respectively adding clear water into the two samples for washing, carrying out secondary centrifugal treatment, putting the obtained precipitate and the centrifuge tube into a drying oven at 105 +/-2 ℃ after washing treatment, and drying to constant weight;
(3) respectively adding absolute ethyl alcohol into the two samples, washing with alcohol, centrifuging for the third time, and drying the obtained precipitate and a centrifuge tube in an oven at 85 +/-2 ℃ to constant weight after alcohol washing;
(4) respectively adding ether into the two samples for washing, performing centrifugal treatment for the fourth time, and putting the obtained precipitate and the centrifuge tube into an oven at 50 +/-2 ℃ for drying until the weight is constant after the ether washing treatment;
(5) taking out and weighing, wherein the weight of the No. 1 centrifugal tube is e g, the weight of the No. 2 centrifugal tube is f g, and calculating the absolute dry precipitate content: g1 = M x (e-c)/a, G2 = M x (f-d)/b; calculating the purity degree: p = [ 1- (G1 + G2)/2 ] × 100%.
Preferably, the centrifugation time of the first centrifugation treatment, the second centrifugation treatment, the third centrifugation treatment and the fourth centrifugation treatment is 5-10 minutes, and the rotation speed is 3000-4000 rpm.
Preferably, the water washing treatment is performed at least 2 times.
Preferably, the alcohol wash treatment is performed at least 2 times.
Preferably, the ether wash treatment is at least 2 times.
Preferably, the value range of M is: m is a positive integer between 6 and 10.
Compared with the prior art, the invention has the technical effects that:
the coating liquid is diluted firstly to reduce the viscosity of the liquid and improve the solid-liquid separation effect in the centrifugal process; in the process of multiple centrifugal washing, the sediment is washed by clear water, so that the influence of water-soluble components carried in wet sediment on the result accuracy can be reduced as much as possible; the precipitate is washed by absolute ethyl alcohol, so that the influence of alcohol-soluble components carried in wet precipitate on the result accuracy can be reduced to the greatest extent; and finally, washing the precipitate by using ether, so that the influence of oil-soluble components carried in wet precipitate on the accuracy of the result can be reduced as much as possible. The detection method of the invention is simple, easy to implement, less in sampling amount and accurate in result.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment 1 of the invention provides a reconstituted tobacco coating liquid purity detection method based on a composite washing technology, which comprises the following steps:
(1) adding water into the reconstituted tobacco coating liquid to dilute the reconstituted tobacco coating liquid by 6 times (by weight), weighing two diluted coating liquid samples with the mass of a g and b g respectively, and putting the two samples into two dried constant-weight centrifuge tubes No. 1 and No. 2 respectively, wherein the mass of the centrifuge tube No. 1 is c g, and the mass of the centrifuge tube No. 2 is d g;
(2) respectively placing the No. 1 centrifugal tube and the No. 2 centrifugal tube filled with the diluted coating liquid sample in the step (1) into a sleeve of a centrifugal machine;
(3) setting the operation parameters of the centrifuge, wherein the centrifugation time is 5 minutes, the rotating speed is 4000 rpm, covering a safety protective cover, and starting the centrifuge;
(4) after the centrifugation is finished, taking out the two centrifuge tubes, slowly pouring out the liquid in the cylinders, keeping the bottom sediment, injecting a certain amount of clear water into the centrifuge tubes to ensure that the liquid levels in the two cylinders are approximately equal, and putting the centrifuge tubes into the sleeve of the centrifuge again; setting the operation parameters of the centrifuge, wherein the centrifugation time is 5 minutes, the rotating speed is 4000 rpm, covering a safety protective cover, and starting the centrifuge;
(5) repeating the step (4) for 1 time;
(6) after the centrifugation is finished, taking out the two centrifuge tubes, slowly pouring out liquid in the cylinders, keeping bottom sediment, putting the obtained sediment and the centrifuge tubes into a 105 ℃ oven to be dried to constant weight, injecting a certain amount of absolute ethyl alcohol into the centrifuge tubes, and putting the centrifuge tubes into the sleeves of the centrifuge again, wherein the liquid levels in the two cylinders are required to be approximately equal; setting the operation parameters of the centrifuge, wherein the centrifugation time is 5 minutes, the rotating speed is 4000 rpm, covering a safety protective cover, and starting the centrifuge;
(7) repeating the step (6) for 1 time;
(8) after the centrifugation is finished, taking out the two centrifuge tubes, slowly pouring out liquid in the tubes, keeping bottom sediment, putting the obtained sediment and the centrifuge tubes into an oven at 85 ℃ for drying to constant weight, injecting a certain amount of diethyl ether into the centrifuge tubes, and putting the centrifuge tubes into the sleeves of the centrifuge again, wherein the liquid levels in the two tubes are required to be approximately equal; setting the operation parameters of the centrifuge, wherein the centrifugation time is 5 minutes, the rotating speed is 4000 rpm, covering a safety protective cover, and starting the centrifuge;
(9) repeating the step (8) for 1 time;
(10) after the centrifugation is accomplished, take out two centrifuging tubes, slowly pour the liquid in the section of thick bamboo, remain the bottom and deposit, will obtain deposit and centrifuge tube and put into 50 ℃ oven together and dry to the constant weight, then take out and weigh, the weight of No. 1 centrifuging tube is e gram, and the weight of No. 2 centrifuging tubes is f gram, calculates the absolutely dry sediment content: g1 = M x (e-c)/a, G2 = M x (f-d)/b; calculating the purity degree: p = [ 1- (G1 + G2)/2 ] × 100%.
Example 2
The embodiment 2 of the invention provides a reconstituted tobacco coating liquid purity detection method based on a composite washing technology, which comprises the following steps:
(1) adding water into the reconstituted tobacco coating liquid to dilute by 10 times (by weight), weighing two diluted coating liquid samples with the mass of a g and b g respectively, and putting the two samples into two dried constant-weight centrifuge tubes No. 1 and No. 2 respectively, wherein the mass of the centrifuge tube No. 1 is c g, and the mass of the centrifuge tube No. 2 is d g;
(2) respectively placing the No. 1 centrifugal tube and the No. 2 centrifugal tube filled with the diluted coating liquid sample in the step (1) into a sleeve of a centrifugal machine;
(3) setting the operation parameters of the centrifuge, wherein the centrifugation time is 8 minutes, the rotating speed is 3000 r/min, covering a safety protective cover, and starting the centrifuge;
(4) after the centrifugation is finished, taking out the two centrifuge tubes, slowly pouring out the liquid in the cylinders, keeping the bottom sediment, injecting a certain amount of clear water into the centrifuge tubes to ensure that the liquid levels in the two cylinders are approximately equal, and putting the centrifuge tubes into the sleeve of the centrifuge again; setting the operation parameters of the centrifuge, wherein the centrifugation time is 8 minutes, the rotating speed is 3000 r/min, covering a safety protective cover, and starting the centrifuge;
(5) repeating the step (4) for 2 times;
(6) after the centrifugation is finished, taking out the two centrifuge tubes, slowly pouring out liquid in the cylinders, keeping bottom sediment, putting the obtained sediment and the centrifuge tubes into a 105 ℃ oven to be dried to constant weight, injecting a certain amount of absolute ethyl alcohol into the centrifuge tubes, and putting the centrifuge tubes into the sleeves of the centrifuge again, wherein the liquid levels in the two cylinders are required to be approximately equal; setting the operation parameters of the centrifuge, wherein the centrifugation time is 8 minutes, the rotating speed is 3000 r/min, covering a safety protective cover, and starting the centrifuge;
(7) repeating the step (6) for 2 times;
(8) after the centrifugation is finished, taking out the two centrifuge tubes, slowly pouring out liquid in the tubes, keeping bottom sediment, putting the obtained sediment and the centrifuge tubes into an oven at 85 ℃ for drying to constant weight, injecting a certain amount of diethyl ether into the centrifuge tubes, and putting the centrifuge tubes into the sleeves of the centrifuge again, wherein the liquid levels in the two tubes are required to be approximately equal; setting the operation parameters of the centrifuge, wherein the centrifugation time is 8 minutes, the rotating speed is 3000 r/min, covering a safety protective cover, and starting the centrifuge;
(9) repeating the step (8) for 2 times;
(10) after the centrifugation is accomplished, take out two centrifuging tubes, slowly pour the liquid in the section of thick bamboo, remain the bottom and deposit, will obtain deposit and centrifuge tube and put into 50 ℃ oven together and dry to the constant weight, then take out and weigh, the weight of No. 1 centrifuging tube is e gram, and the weight of No. 2 centrifuging tubes is f gram, calculates the absolutely dry sediment content: g1 = M x (e-c)/a, G2 = M x (f-d)/b; calculating the purity degree: p = [ 1- (G1 + G2)/2 ] × 100%.
The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. A reconstituted tobacco coating liquid purity detection method based on a composite washing technology is characterized by comprising the following steps:
(1) adding water into the reconstituted tobacco coating liquid for diluting by M times, weighing two diluted coating liquid samples with the mass of a and b respectively, placing the two samples into two dried constant-weight No. 1 and No. 2 centrifuge tubes respectively for carrying out first centrifugation treatment, and reserving precipitates; wherein M is a positive integer greater than or equal to 4, the mass of the No. 1 centrifugal tube is c grams, and the mass of the No. 2 centrifugal tube is d grams;
(2) respectively adding clear water into the two samples for washing, carrying out secondary centrifugal treatment, putting the obtained precipitate and the centrifuge tube into a drying oven at 105 +/-2 ℃ after washing treatment, and drying to constant weight;
(3) respectively adding absolute ethyl alcohol into the two samples, washing with alcohol, centrifuging for the third time, and drying the obtained precipitate and a centrifuge tube in an oven at 85 +/-2 ℃ to constant weight after alcohol washing;
(4) respectively adding ether into the two samples for washing, performing centrifugal treatment for the fourth time, and putting the obtained precipitate and the centrifuge tube into an oven at 50 +/-2 ℃ for drying until the weight is constant after the ether washing treatment;
(5) taking out and weighing, wherein the weight of the No. 1 centrifugal tube is e g, the weight of the No. 2 centrifugal tube is f g, and calculating the absolute dry precipitate content: g1 = M x (e-c)/a, G2 = M x (f-d)/b; calculating the purity degree: p = [ 1- (G1 + G2)/2 ] × 100%.
2. The method for detecting the purity of the reconstituted tobacco coating liquid based on the composite washing technology as claimed in claim 1, wherein the centrifugation time of the first centrifugation treatment, the second centrifugation treatment, the third centrifugation treatment and the fourth centrifugation treatment is 5-10 minutes, and the rotation speed is 3000-.
3. The reconstituted tobacco coating liquid purity detection method based on the composite washing technology of claim 1, wherein the water washing treatment is carried out for at least 2 times.
4. The reconstituted tobacco coating liquid purity detection method based on the composite washing technology of claim 1, wherein the alcohol washing treatment is carried out for at least 2 times.
5. The reconstituted tobacco coating liquid purity detection method based on the composite washing technology of claim 1, wherein the ether washing treatment is carried out for at least 2 times.
6. The reconstituted tobacco coating liquid purity detection method based on the composite washing technology of claim 1, wherein the value range of M is as follows: m is a positive integer between 6 and 10.
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| CN201911118313.6A CN110679983B (en) | 2019-11-15 | 2019-11-15 | Reconstituted tobacco coating liquid purity detection method based on composite washing technology |
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| CN201911118313.6A CN110679983B (en) | 2019-11-15 | 2019-11-15 | Reconstituted tobacco coating liquid purity detection method based on composite washing technology |
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| CN110679983B true CN110679983B (en) | 2021-11-05 |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211252A (en) * | 1992-02-18 | 1993-05-18 | R. J. Reynolds Tobacco Company | Automatic basis sheet weight and moisture content measuring apparatus |
| CN1759768A (en) * | 2005-11-12 | 2006-04-19 | 云南瑞升科技有限公司 | Method for preparing reconstituted tobacco leaves through paper making method |
| CN102018280A (en) * | 2009-09-10 | 2011-04-20 | 湖北中烟工业有限责任公司 | Method for producing special adsorption clarifying agent for removing impurities from tobacco sheet raw material extraction liquid |
| CN103048212A (en) * | 2012-11-09 | 2013-04-17 | 红塔烟草(集团)有限责任公司 | Determining method of hot-water soluble matters of papermaking-method reproduced tobaccos |
| CN103393212A (en) * | 2013-08-20 | 2013-11-20 | 武汉淡雅香科技发展股份有限公司 | Method for increasing extraction rate of raw tobacco material of reconstituted tobacco |
| CN103798950A (en) * | 2014-03-11 | 2014-05-21 | 云南瑞升烟草技术（集团）有限公司 | Preparation method of recombinant tobacco leaves |
| CN104062203A (en) * | 2014-07-15 | 2014-09-24 | 安徽中烟再造烟叶科技有限责任公司 | Method for measuring content of sand of papermaking process reconstituted tobacco raw material and process product |
| CN105105311A (en) * | 2015-09-25 | 2015-12-02 | 江苏中烟工业有限责任公司 | Determination method of paper-making reconstituted tobacco raw material extraction rate |
| CN107515170A (en) * | 2017-08-31 | 2017-12-26 | 广东省金叶科技开发有限公司 | A kind of assay method of hot-water solubles' content |
| CN107543879A (en) * | 2017-08-11 | 2018-01-05 | 安徽中烟工业有限责任公司 | The assay method of solid content in a kind of papermaking-method reconstituted tobaccos tobacco water extract |
| CN107741378A (en) * | 2017-10-18 | 2018-02-27 | 湖北中烟工业有限责任公司 | A kind of detection method of reconstituted tobacco coating fluid degree of purity |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4572219A (en) * | 1979-01-19 | 1986-02-25 | Fabriques De Tabac Reunies S.A. | Process for improving tobacco |
| CN106381771B (en) * | 2016-11-23 | 2017-12-19 | 沈阳思特雷斯纸业有限责任公司 | A kind of crystal liquid substrate feeding spaced papers and manufacture method |
| CN106579542B (en) * | 2017-01-26 | 2018-10-30 | 福建金闽再造烟叶发展有限公司 | A kind of paper pulp and preparation method thereof and ramuscule cigarette |
-
2019
- 2019-11-15 CN CN201911118313.6A patent/CN110679983B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211252A (en) * | 1992-02-18 | 1993-05-18 | R. J. Reynolds Tobacco Company | Automatic basis sheet weight and moisture content measuring apparatus |
| CN1759768A (en) * | 2005-11-12 | 2006-04-19 | 云南瑞升科技有限公司 | Method for preparing reconstituted tobacco leaves through paper making method |
| CN102018280A (en) * | 2009-09-10 | 2011-04-20 | 湖北中烟工业有限责任公司 | Method for producing special adsorption clarifying agent for removing impurities from tobacco sheet raw material extraction liquid |
| CN103048212A (en) * | 2012-11-09 | 2013-04-17 | 红塔烟草(集团)有限责任公司 | Determining method of hot-water soluble matters of papermaking-method reproduced tobaccos |
| CN103393212A (en) * | 2013-08-20 | 2013-11-20 | 武汉淡雅香科技发展股份有限公司 | Method for increasing extraction rate of raw tobacco material of reconstituted tobacco |
| CN103798950A (en) * | 2014-03-11 | 2014-05-21 | 云南瑞升烟草技术（集团）有限公司 | Preparation method of recombinant tobacco leaves |
| CN104062203A (en) * | 2014-07-15 | 2014-09-24 | 安徽中烟再造烟叶科技有限责任公司 | Method for measuring content of sand of papermaking process reconstituted tobacco raw material and process product |
| CN105105311A (en) * | 2015-09-25 | 2015-12-02 | 江苏中烟工业有限责任公司 | Determination method of paper-making reconstituted tobacco raw material extraction rate |
| CN107543879A (en) * | 2017-08-11 | 2018-01-05 | 安徽中烟工业有限责任公司 | The assay method of solid content in a kind of papermaking-method reconstituted tobaccos tobacco water extract |
| CN107515170A (en) * | 2017-08-31 | 2017-12-26 | 广东省金叶科技开发有限公司 | A kind of assay method of hot-water solubles' content |
| CN107741378A (en) * | 2017-10-18 | 2018-02-27 | 湖北中烟工业有限责任公司 | A kind of detection method of reconstituted tobacco coating fluid degree of purity |
Non-Patent Citations (1)
| Title |
|---|
| 造纸法再造烟叶萃取液与浓缩液含水率的测定研究;汪华等;《安徽农学通报》;20190131;第25卷(第1期);第106-110页 * |
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