Preparation method of tobacco powder monitoring sample suitable for chemical conventional component inspection of tobaccos

A technology for sample preparation and chemical composition, which is used in the preparation of tobacco powder and the preparation of tobacco powder monitoring samples to achieve the effects of good uniformity, long shelf life and accurate determination.

Inactive Publication Date: 2020-07-10
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, at present, my country's tobacco industry does...

Method used

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  • Preparation method of tobacco powder monitoring sample suitable for chemical conventional component inspection of tobaccos
  • Preparation method of tobacco powder monitoring sample suitable for chemical conventional component inspection of tobaccos
  • Preparation method of tobacco powder monitoring sample suitable for chemical conventional component inspection of tobaccos

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Experimental program
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Embodiment Construction

[0022] The present invention will be further described below in conjunction with examples, but not limit the present invention.

[0023] For the flue-cured tobacco leaf sample C3F (orange third grade in the middle) with the same origin, variety and year, about 7kg in total, the stems were removed and shredded according to the requirements.

[0024] A. Sample crushing

[0025] Use a sample grinder to grind the sample (tobacco leaves need to be removed and cut into shreds), pass through a 40-mesh sieve, and collect 5 kg of the sample;

[0026] B. Sample mixing

[0027] Mix the tobacco powder with the principle of the quartering method: spread the tobacco powder into a circle of the same area at a rate of about 500 g each time, stack layers until complete, and divide it into 4 parts on average, collect each part separately, and complete it once The mixing operation was repeated 20 times.

[0028] C. Packing and sealing of samples

[0029] The mixed sample was divided into 1...

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Abstract

The invention relates to a preparation method of a tobacco powder monitoring sample suitable for chemical conventional component inspection of tobacco. The preparation method is characterized by comprising the following steps: crushing, uniformly mixing, sub-packaging and sealing, inactivating, carrying out a uniformity experiment, valuing and inspecting stability. The preparation method has the advantages that the manufactured sample is good in uniformity, the constant value of related indexes is accurate, the storage life of the sample is long, the stability is good, the quality control of the chemical index test result can be effectively realized and the accuracy and the objectivity of the inspection result are ensured.

Description

technical field [0001] The invention belongs to the technical field of tobacco sample preparation, and mainly relates to a method for preparing tobacco powder, in particular to a method for preparing a monitoring sample of tobacco powder suitable for routine chemical component testing of tobacco. Background technique [0002] At present, the indicators involved in the inspection of tobacco chemical components in my country's tobacco industry mainly include total plant alkaloids (YC / T468-2013), water-soluble sugars (YC / T 159-2019), chlorine (YC / T 162-2011), potassium (YC / T 217) -2007), total nitrogen (YC / T161-2002), etc. These indicators play an important role in the quality inspection of tobacco and tobacco products, and the industry has also released relevant inspection standards. The quality control of chemical index test results is usually achieved by using laboratory control samples, that is, test monitoring samples. When each sample is tested, the laboratory monitoring ...

Claims

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Application Information

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IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 何声宝刘楠罗安娜冯晓民张威王英元范月月张晓慧
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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