CN113390817A - Pretreatment method for near-infrared detection sample of finished tobacco lamina - Google Patents
Pretreatment method for near-infrared detection sample of finished tobacco lamina Download PDFInfo
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- CN113390817A CN113390817A CN202110667167.3A CN202110667167A CN113390817A CN 113390817 A CN113390817 A CN 113390817A CN 202110667167 A CN202110667167 A CN 202110667167A CN 113390817 A CN113390817 A CN 113390817A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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Abstract
本发明属于烟草检测技术领域，具体涉及一种成品片烟近红外检测样品前处理方法，包括如下步骤：样品选取；一次粉粹：将成品片烟样品粉粹至粒度为＜3mm；烘干：将经过一次粉碎后的成品片烟样品烘干至含水量为9.0‑10.5％；二次粉碎：将经过烘干的成品片烟样品继续粉粹至粒度≤0.425mm；样品平衡：将经过二次粉粹的成品片烟样品在18‑26℃,40‑60％RH的环境下恒温恒湿平衡30分钟。前述的前处理方法，耗时短、效率高，并且所制得的样品的化学性质符合相关的检测要求。
The invention belongs to the technical field of tobacco detection, and in particular relates to a pre-processing method for near-infrared detection samples of finished cigarettes. Dry the finished cigarette samples after primary pulverization to a moisture content of 9.0-10.5%; secondary pulverization: continue to pulverize the dried finished cigarette samples to a particle size of ≤0.425mm; sample balance: the secondary pulverization The pulverized finished cigarette samples were equilibrated at constant temperature and humidity for 30 minutes under the environment of 18-26℃ and 40-60%RH. The aforementioned pretreatment method has the advantages of short time consumption and high efficiency, and the chemical properties of the prepared samples meet the relevant detection requirements.
Description
Technical Field
The invention belongs to the technical field of tobacco detection, and particularly relates to a pretreatment method of a near-infrared detection sample of a finished tobacco sheet.
Background
At present, the pretreatment method of the near-infrared detection sample of finished tobacco lamina in the tobacco industry has no unified standard, but has the problems of long time consumption, large consumption of manpower and material resources, low efficiency and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a near-infrared detection sample pretreatment method for finished tobacco lamina, which is short in time consumption, high in efficiency and capable of meeting detection requirements.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a pretreatment method for a finished product tobacco lamina near-infrared detection sample comprises the following steps:
selecting a sample: selecting finished tobacco sheet samples meeting the detection standard;
primary crushing: crushing the finished tobacco sheet sample until the granularity is less than 3 mm;
drying: drying the finished tobacco sheet sample after primary crushing until the water content is 9.0-10.5%, and ensuring that the chemical property of the finished tobacco sheet sample is not damaged;
and (3) secondary crushing: continuously crushing the dried finished product tobacco sheet sample until the granularity is less than or equal to 0.425 mm;
sample balancing: and (3) balancing the finished product tobacco sheet sample subjected to secondary crushing at the constant temperature and humidity for 30 minutes at the temperature of 18-26 ℃ and in the environment of 40-60% RH.
Specifically, the specific process of selecting the samples in the step is as follows: and opening the finished tobacco flake box, and performing three-point sampling along the four halves of the diagonal line of the box.
Specifically, in the step of primary crushing, when crushing, finished product tobacco sheet samples are put into a grinding mill at a constant speed and in an equivalent amount for grinding and crushing.
Specifically, the drying step comprises the following specific processes: and drying the finished tobacco sheet sample subjected to primary crushing at the temperature of 40 ℃ for 30 minutes.
Specifically, in the secondary crushing step, during crushing, the finished product tobacco sheet sample is uniformly and equivalently put into a grinding mill for grinding and crushing, so that the grinding time of the finished product tobacco sheet sample is ensured to be 1.5 minutes.
The invention has the beneficial effects that: by adopting the pretreatment method, the finished tobacco flake sample is firstly crushed to the granularity less than 3mm and then dried, so that the chemical property of the finished tobacco flake sample is not influenced, and the drying time is greatly saved; thereby integrally shortening the pretreatment time; in addition, the sample is balanced by adopting the environmental conditions, the chemical properties of the sample cannot be influenced, and the subsequent near-infrared detection requirements are met.
Drawings
FIG. 1 is a flow chart of an embodiment of the present invention.
Detailed Description
It is understood that within the scope of the present invention, the above-described technical features of the present invention and the technical features specifically described below (e.g., examples) may be combined with each other to constitute a new or preferred technical solution. Not to be reiterated herein, but to the extent of space. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention.
A pretreatment method for a finished product tobacco lamina near-infrared detection sample is shown in figure 1 and comprises the following steps:
and S1 sample selection: selecting finished tobacco sheet samples meeting the detection standard; the specific process is as follows: and opening the finished tobacco flake box, and performing three-point sampling along the four halves of the diagonal line of the box.
S2, smashing for one time: crushing the finished tobacco sheet sample until the granularity is less than 3 mm; in the embodiment, a YMS-96 type grinder is adopted for grinding and crushing, and in other embodiments, grinders of other types can be adopted for grinding and crushing, so that the grinding requirement can be met, and equipment with less time consumption and good crushing effect is selected as much as possible, so that the time is saved.
S3, drying: drying the finished tobacco sheet sample after primary crushing until the water content is 9.0-10.5%, and ensuring that the chemical property of the finished tobacco sheet sample is not damaged; in this embodiment, in order to improve the drying efficiency without affecting the chemical properties of the sample, the temperature was set to 40 ℃ for 30 minutes.
S4 secondary crushing: continuously crushing the dried finished product tobacco sheet sample until the granularity is less than or equal to 0.425 mm; in the embodiment, JXFM110 hammer type cyclone mill is adopted for grinding and crushing, so that the grinding time of the finished product sheet tobacco sample is ensured to be 1.5 minutes; under the condition, the granularity of the crushed sample is less than or equal to 0.425mm, no particles exist, and the chemical property of the sample cannot be influenced; in other embodiments, of course, other types of grinding machines such as the fos CT193 cyclone sample mill may be used to grind and crush, and only the grinding requirement needs to be met, and certainly, the time-consuming equipment is selected as much as possible to save time.
And (3) balancing the S5 sample: and (3) balancing the finished product tobacco sheet sample subjected to secondary crushing at the constant temperature and humidity for 30 minutes at the temperature of 18-26 ℃ and in the environment of 40-60% RH.
According to the pretreatment method for the near-infrared detection sample of the finished tobacco sheet, the finished tobacco sheet sample is firstly crushed to the granularity smaller than 3mm and then dried, so that the chemical property of the finished tobacco sheet sample is not influenced, and the drying time is greatly saved; thereby integrally shortening the pretreatment time, simultaneously reducing the working hours of corresponding workers and saving the production cost.
And (3) performing near-infrared detection on the finished tobacco flakes, wherein the detected chemical indexes comprise nicotine, total sugar, reducing sugar, total nitrogen, total potassium and total chlorine.
Randomly extracting 3 boxes of finished tobacco strips in the same batch, processing the tobacco strips by the pretreatment method, and detecting the tobacco strips by a Fourier transform near infrared spectrum analyzer, wherein the detection results are as shown in the following table 1:
TABLE 1
The actual values of the chemical indexes of the selected batches of finished tobacco flakes are shown in table 2 below:
TABLE 2
Comparing the three groups of data in table 1 with the average value data in table 2, it is obvious that the difference between the three groups of data in table 1 and the average value of the standard values in table 2 is within the error range, that is, the chemical property of the sample treated by the pretreatment method meets the detection requirement.
The above description is only a preferred embodiment of the present invention, and it should be understood that the present invention is not limited to the above description, which should be interpreted as a limitation, since modifications can be made to the embodiment and its application range by those skilled in the art in light of the above description.
Claims (5)
1. A pretreatment method for a finished product tobacco lamina near-infrared detection sample is characterized by comprising the following steps:
selecting a sample: selecting finished tobacco sheet samples meeting the detection standard;
primary crushing: crushing the finished tobacco sheet sample until the granularity is less than 3 mm;
drying: drying the finished tobacco sheet sample after primary crushing until the water content is 9.0-10.5%, and ensuring that the chemical property of the finished tobacco sheet sample is not damaged;
and (3) secondary crushing: continuously crushing the dried finished product tobacco sheet sample until the granularity is less than or equal to 0.425 mm;
sample balancing: and (3) balancing the finished product tobacco sheet sample subjected to secondary crushing at the constant temperature and humidity for 30 minutes at the temperature of 18-26 ℃ and in the environment of 40-60% RH.
2. The pretreatment method for the finished product sheet tobacco near-infrared detection sample according to claim 1, characterized in that the specific process of sample selection in the step is as follows: and opening the finished tobacco flake box, and performing three-point sampling along the four halves of the diagonal line of the box.
3. The method for pre-treating the near-infrared detection sample of the finished product tobacco lamina as claimed in claim 1, wherein in the step of crushing, the finished product tobacco lamina sample is put into a grinding mill at a constant speed and in an equal amount for grinding and crushing.
4. The pretreatment method for the finished product sheet tobacco near-infrared detection sample according to claim 1, characterized in that the drying step comprises the following specific processes: and drying the finished tobacco sheet sample subjected to primary crushing at the temperature of 40 ℃ for 30 minutes.
5. The method for pre-treating the near-infrared detection sample of the finished tobacco lamina as claimed in claim 1, wherein in the secondary crushing step, the finished tobacco lamina sample is uniformly and equivalently ground and crushed in a grinding mill during crushing, so as to ensure that the grinding time of the finished tobacco lamina sample is 1.5 minutes.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197032A (en) * | 2013-03-13 | 2013-07-10 | 安徽中烟工业有限责任公司 | Evaluation method for mixing uniformity of threshing and redrying finished sheet tobacco |
| CN105380296A (en) * | 2015-10-27 | 2016-03-09 | 李刚 | Process method for preparing high-quality cigarette filter stick through steam explosion tobacco stems |
| KR101859898B1 (en) * | 2018-02-02 | 2018-05-18 | 최일호 | Fine dust reduction device |
| CN110822829A (en) * | 2019-11-15 | 2020-02-21 | 衡东县金源铝银粉有限公司 | Fireworks aluminite powder drying device |
| CN110897190A (en) * | 2019-11-28 | 2020-03-24 | 中国船舶工业总公司七一五研究所宜昌分部 | Production process of tobacco sheets by rolling method |
| CN111610174A (en) * | 2020-06-04 | 2020-09-01 | 云南省计量测试技术研究院 | A kind of preparation method of heavy metal-containing tobacco matrix standard substance |
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2021
- 2021-06-16 CN CN202110667167.3A patent/CN113390817A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197032A (en) * | 2013-03-13 | 2013-07-10 | 安徽中烟工业有限责任公司 | Evaluation method for mixing uniformity of threshing and redrying finished sheet tobacco |
| CN105380296A (en) * | 2015-10-27 | 2016-03-09 | 李刚 | Process method for preparing high-quality cigarette filter stick through steam explosion tobacco stems |
| KR101859898B1 (en) * | 2018-02-02 | 2018-05-18 | 최일호 | Fine dust reduction device |
| CN110822829A (en) * | 2019-11-15 | 2020-02-21 | 衡东县金源铝银粉有限公司 | Fireworks aluminite powder drying device |
| CN110897190A (en) * | 2019-11-28 | 2020-03-24 | 中国船舶工业总公司七一五研究所宜昌分部 | Production process of tobacco sheets by rolling method |
| CN111610174A (en) * | 2020-06-04 | 2020-09-01 | 云南省计量测试技术研究院 | A kind of preparation method of heavy metal-containing tobacco matrix standard substance |
Non-Patent Citations (1)
| Title |
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| 段焰青 等: ""烟样水分质量分数对其常规化学成分近红外测定的影响"", 《云南大学学报(自然科学版)》, vol. 27, no. 5, pages 424 - 428 * |
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