Sampling device and sampling method for ultralow-concentration tobacco flavor substances

Abstract

The invention discloses a sampling device and a sampling method for ultralow-concentration tobacco flavor substances, and the sampling device comprises a pretreatment system, a gas concentration system and an inflation device which are communicated in sequence, the gas concentration system comprises a second communicating pipe, a first sampling pipe filled with a polar adsorbent, a second sampling pipe filled with a non-polar adsorbent and a third communicating pipe, the first sampling pipe and the second sampling pipe are detachably connected between the second communicating pipe and the third communicating pipe in parallel, and a first circulating pipe and a second circulating pipe are further arranged; the special adsorbent filled is controlled through opening and closing of the valve, residual aroma substances of the added cigarette shreds are subjected to impurity removal, then the special adsorbent is adopted for cyclic enrichment according to polarity classification, enrichment is thorough, no residues exist, mutual interference among complex aroma substance components is reduced, the sensitivity of the components in the subsequent detection process is improved, and the detection accuracy is improved. Whether the perfuming equipment is completely purified or not can be conveniently judged.

Description

technical field [0001] The invention relates to the field of tobacco manufacturing, in particular to a sampling device for ultra-low concentration tobacco flavor substances and a sampling method thereof. [0002] technical background [0003] The tobacco industry is an important part of the national economic system. Flavoring of cut tobacco is an indispensable key process in the tobacco manufacturing process. of tobacco. With the continuous improvement of the automation control level of the tobacco silk production line, the requirements for the quality of silk and flavoring production are more stringent. When producing different brands of tobacco, it is necessary to deeply purify the flavoring equipment to remove the residual flavor, so as to avoid the smell of different brands of cut tobacco and ensure the efficient operation of the production line. However, at present, judging whether the aromatherapy equipment has completed deep purification mainly relies on the judgment...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, the Chinese patent with the publication number CN203737062U discloses a device for extracting the aroma and fragrance of tobacco in the waste gas of the cone-barrel tobacco leaf processing. Accelerate the adsorption speed of tobacco flavor and fragrance in the waste gas, and have a high recovery rate of fragrance, and at the same time speed up the speed of waste gas passing through the fragrance collection device, and improve production efficiency; its eluting device circulates and cleans the absorbent in the fragrance absorption layer, The elution speed can be greatly accelerated. On the one hand, the patent does not remove the interfering impurities in a targeted manner, which will reduce the detection accuracy of subsequent aroma substances. If the ultra-low concentration of fragrance substances are collected and tested together, there will be interference between them, resulting in a decrease in the sensitivity of subsequent GC-MS detection, so it is impossible to judge whether the fragrance adding equipment is completely purified

Images