CN102967486B - Method for uniformly sampling tobacco leaf samples in tobacco curing process - Google Patents
Method for uniformly sampling tobacco leaf samples in tobacco curing process Download PDFInfo
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- CN102967486B CN102967486B CN201210502681.2A CN201210502681A CN102967486B CN 102967486 B CN102967486 B CN 102967486B CN 201210502681 A CN201210502681 A CN 201210502681A CN 102967486 B CN102967486 B CN 102967486B
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Abstract
The invention discloses a method for uniformly sampling tobacco leaf samples in a tobacco curing process. The method comprises the following main steps of: (1) determining the total quantity of tobacco leaf samples to be sampled to be 1.1-1.2 times the quantity of accurately calculated tobacco leaf samples according to demands of tobacco curing researches; (2) during sampling, taking one part of each tobacco leaf each time; (3) punching and sampling each tobacco leaf to be sampled in three areas including a leaf tip part, a leaf middle part and a leaf base part according to the quantity distribution proportion of 1/4, 2/4 and 1/4 in terms of the punching and sampling quantity, and on the basis, punching along two areas on the left and right of each main leaf vein in a manner that the punching quantity in the two areas accounts for 1/2 respectively; (4) for each tobacco leaf sample, ensuring that the quantity of punched holes and the total punching area are the same; and (5) mixing the tobacco leaf samples obtained after punching in a centralized manner, and making samples as a matter of routine to obtain processed samples. The method disclosed by the invention has the advantages that the accuracy of the obtained tobacco leaf samples is good, and the comparability and regularity of detection results are strong.
Description
Technical field
The present invention relates to one to grow tobacco tobacco sample uniform sampling method in modulated process, belong to tobacco modulation technique field.
Background technology
In tobacco modulation technique research process, sampling detects the dynamic rule of tobacco leaf internal substance, is to be engaged in the thing that tobacco modulation research worker often does.
In Chinese textbook, laboratory manual or practice process, usually adopt " batch sampling method ", that is: in determined sampling tobacco leaf, get the blade of some as sample at every turn, according to tobacco leaf modulation scheme, sample several times in batches.This sampling method, " blade of some " first got, with after " blade of some " got, there is larger difference in chemical composition, sample detection result, comparability, regular poor.
In tobacco leaf growth and development process, by the impact of the factors such as leaf position, Ye Xiang, Fertilization Level, degree of ripeness, agronomic measures, between blade there is larger difference in internal substance each other.When choosing sample tobacco leaf, usually require to accomplish " three is same ", i.e.: " same kind, same position, same degree of ripeness "; Result still inevitably occurs there is larger difference between sample tobacco leaf, and " batch sampling method ", annoyings the progress of modulation research work always.
Abroad, the countries such as the U.S., Brazil, Canada and Zimbabwe, the sampling method in its tobacco modulated process is the same with China, also adopts " batch sampling method ", there is same drawback.
Summary of the invention
Technical matters to be solved by this invention is, provide the method that grows tobacco tobacco sample uniform sampling in modulated process, solving the accuracy problem of tobacco sample sampling in tobacco modulated process, is the exploration of tobacco modulation rule, establishes objective sample basis.
In order to solve the above technical matters, the present invention one grows tobacco tobacco sample uniform sampling method in modulated process, and the concrete steps of described method are as follows:
(1) according to the needs of tobacco modulation research, determine that the total number of tobacco sample is got by whole modulated process institute, controlling totally to sample tobacco sample quantity is 1.1 ~ 1.2 times that accurately calculate tobacco sample quantity;
(2) during sampling, no matter tobacco sample quantity, must at every turn often sheet tobacco leaf all get some;
(3) every sheet sampling tobacco leaf divides leaf tip, leaf central part, leaf base 3 regions, and punching quantity of sampling quantity allocation proportion is: leaf tip 1/4, leaf central part 2/4, leaf base 1/4; On the basis of this allocation proportion, then divide 2 regions along master pulse the right and left, the allocation proportion of punching quantity is: the right and left each 1/2;
(4) every sheet tobacco sample, controls punching quantity identical with the punching total area;
(5) the sample tobacco leaf of punching acquisition, concentrate mixing, sample preparation routinely, obtains processing sample.
Beneficial effect of the present invention: it is good that the present invention has got tobacco sample accuracy, testing result comparability, regular strong advantage are the exploration of tobacco modulation rule, have established good sample basis, have had important using value.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
The present invention one grows tobacco tobacco sample uniform sampling method in modulated process, and the concrete steps of described method are as follows:
(1) according to the needs of tobacco modulation research, determine that the total number of tobacco sample is got by whole modulated process institute, controlling totally to sample tobacco sample quantity is 1.1 ~ 1.2 times that accurately calculate tobacco sample quantity;
(2) during sampling, no matter tobacco sample quantity, must at every turn often sheet tobacco leaf all get some;
(3) every sheet sampling tobacco leaf divides leaf tip, leaf central part, leaf base 3 regions, and punching quantity of sampling quantity allocation proportion is: leaf tip 1/4, leaf central part 2/4, leaf base 1/4; On the basis of this allocation proportion, then divide 2 regions along master pulse the right and left, the allocation proportion of punching quantity is: the right and left each 1/2;
(4) every sheet tobacco sample, controls punching quantity identical with the punching total area;
(5) the sample tobacco leaf of punching acquisition, concentrate mixing, sample preparation routinely, obtains processing sample.
Embodiment one: the sample that in flue-cured tobacco modulated process, tobacco sample uniform sampling method obtains
Tobacco sample sampling method: (1) as required, determine whole modulated process get the total number of tobacco sample, making totally to sample tobacco sample quantity is 1.1 ~ 1.2 times that accurately calculate tobacco sample quantity; (2), during sampling, each every sheet tobacco leaf all gets some; (3) every sheet sampling tobacco leaf presses leaf tip 1/4, leaf central part 2/4, leaf base 1/4 3 region allocation punching quantity of sampling quantity, on this basis, then divides 2 regions respectively to account for 1/2 punching quantity along about master pulse; (4) every sheet tobacco sample, punching quantity is identical with the punching total area; (5) the sample tobacco leaf of punching acquisition, concentrate mixing, sample preparation routinely, obtains processing sample.
Proof procedure and result as shown in table 1.
Table 1: in flue-cured tobacco modulated process, tobacco sample uniform sampling method obtains proof procedure and the result of sample
Known by table 1: tobacco sample uniform sampling method in flue-cured tobacco modulated process, sampling cost 5.00 yuan/, sample time, 10 minutes/sample, compared with " batch sampling method " of existing routine, it is good that the present invention gets tobacco sample accuracy, testing result comparability, regular strong.
Embodiment two: the sample that in suncured tabacco modulated process, tobacco sample uniform sampling method obtains
Tobacco sample sampling method: with embodiment one
Proof procedure and result as shown in table 2.
Table 2: in suncured tabacco modulated process, tobacco sample uniform sampling method obtains proof procedure and the result of sample
Known by table 2: tobacco sample uniform sampling method in suncured tabacco modulated process, sampling cost 5.50 yuan/, sample time, 13 minutes/sample, compared with " batch sampling method " of existing routine, it is good that the present invention gets tobacco sample accuracy, testing result comparability, regular strong.
Claims (1)
1. one to grow tobacco tobacco sample uniform sampling method in modulated process, it is characterized in that, the concrete steps of described method are as follows:
(1) according to the needs of tobacco modulation research, determine that the total number of tobacco sample is got by whole modulated process institute, controlling totally to sample tobacco sample quantity is 1.1 ~ 1.2 times that accurately calculate tobacco sample quantity;
(2) during sampling, no matter tobacco sample quantity, must at every turn often sheet tobacco leaf all get some;
(3) every sheet sampling tobacco leaf divides leaf tip, leaf central part, leaf base 3 regions, and punching quantity of sampling quantity allocation proportion is: leaf tip 1/4, leaf central part 2/4, leaf base 1/4; On the basis of this allocation proportion, then divide 2 regions along master pulse the right and left, the allocation proportion of punching quantity is: the right and left each 1/2;
(4) every sheet tobacco sample, controls punching quantity identical with the punching total area;
(5) the sample tobacco leaf of punching acquisition, concentrate mixing, sample preparation routinely, obtains processing sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502681.2A CN102967486B (en) | 2012-11-30 | 2012-11-30 | Method for uniformly sampling tobacco leaf samples in tobacco curing process |
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| CN201210502681.2A CN102967486B (en) | 2012-11-30 | 2012-11-30 | Method for uniformly sampling tobacco leaf samples in tobacco curing process |
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| CN102967486A CN102967486A (en) | 2013-03-13 |
| CN102967486B true CN102967486B (en) | 2015-02-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103712590A (en) * | 2013-12-30 | 2014-04-09 | 中国农业科学院烟草研究所 | Low-difference detection method for thickness of tobacco leaves |
| CN103954236B (en) * | 2014-05-16 | 2016-08-31 | 中国烟草总公司郑州烟草研究院 | A kind of assay method of slice cigarette shape degree of compacting |
| CN113340904A (en) * | 2021-06-01 | 2021-09-03 | 贵州中烟工业有限责任公司 | Method for detecting shrinkages of tobacco flakes |
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| CN201289447Y (en) * | 2008-11-17 | 2009-08-12 | 中国烟草总公司郑州烟草研究院 | Sampling perforating device suitable for measuring tobacco blade surface density |
| CN102175481A (en) * | 2011-03-02 | 2011-09-07 | 云南省烟草农业科学研究院 | Tobacco leaf positioning method |
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