Method for detecting ash content of tobacco

A technology of ash content and detection method, which is applied in the direction of removing a certain component and weighing, etc., can solve the problems of operator safety, no automatic emptying system, cumbersome operation steps, etc., and achieves low cost, simple method, and analysis. Data-accurate effects

Inactive Publication Date: 2011-10-26
YUNNAN RES INST OF TOBACCO SCI
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Problems solved by technology

[0003] Traditionally, the method of determining tobacco ash content is the dry ashing gravimetric method, which is classic and accurate, with small errors, but also has the disadvantages of cumbersome operation steps and long time-consuming
The traditional muffle furnace method takes an hour or more; and there is no automatic emptying system, which poses a safety hazard to the operator

Method used

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  • Method for detecting ash content of tobacco
  • Method for detecting ash content of tobacco
  • Method for detecting ash content of tobacco

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Embodiment Construction

[0017] The equipment used in this method is purchased from the market. The specific operation steps of the method are as follows:

[0018] 1. Ashing of tobacco samples

[0019] After crushing the tobacco sample and passing through a 30-mesh sieve, accurately weigh 1g (accurate to 0.0002g) of the sample and place it in a quartz fiber crucible, burn it in a microwave muffle furnace at 500°C for 20min, take it out and cool it in a desiccator until Accurately weigh at room temperature.

[0020] 2. Calculate the ash content:

[0021] As % = ( M 2 - M 0 ) × 100 ( ...

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Abstract

The invention relates to a method for detecting the ash content of tobacco, which belongs to the technical field of tobacco analysis and detection. The method specifically comprises the following steps: weighing a certain amount (correct to 0.0002g) of crushed tobacco samples with fineness of 30 meshes; putting the crushed tobacco samples into a quartz fiber crucible, firing the crushed tobacco samples in a microwave muffle furnace for 20 minutes at a temperature of 500 DEG C, then taking out the fired tobacco samples and cooling the fired tobacco samples to room temperature in a dryer, accurately weighing; and subtracting the water content of the tobacco from the weight of the tobacco to obtain the ash content of the tobacco. The method provided by the invention is simple and has the characteristics of low cost, high efficiency, accurate data analysis, safe operating environment, and capability of reducing harms to operators.

Description

Technical field: [0001] The invention relates to a method for detecting ash content in tobacco, belonging to the technical field of tobacco analysis and detection. Background technique: [0002] Tobacco ash is the remaining substance after tobacco is burned, mainly composed of inorganic oxides and salts. It has a significant or extremely significant negative correlation with the aftertaste, and is one of the important criteria to measure the quality of tobacco. The ash content of different types of tobacco varies greatly. Burley and Maryland tobacco have the highest ash content, reaching 20%, and flue-cured tobacco has the lowest ash content. Generally at ±10%, the ash content of spice tobacco is in the middle, at ±15%. Therefore, the determination of tobacco ash content is particularly important. [0003] Traditionally, the dry ashing gravimetric method is used to determine the ash content of tobacco. The method is classic and accurate, and the error is small, but it also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 廖臻王岚蒋次清徐世涛马燕冯文孙桂芬杨帅芮晓东曹红云
Owner YUNNAN RES INST OF TOBACCO SCI
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