Method for identifying brand of Chinese liquor by rapid gas phase electronic nose

Abstract

The invention discloses a method for identifying Chinese liquor by a rapid gas phase electronic nose system. The method comprises the following steps of putting 1mL of a Chinese liquor sample to be tested into a 10mL sample bottle, sealing the sample bottle by a silica gel gasket, and standing still for 10-30 minutes; setting analysis parameters of the rapid gas phase electronic nose system; putting the sample bottle onto a sample plate, and analyzing and testing the sample by the rapid gas phase electronic nose system; and acquiring smell fingerprint information of the Chinese liquor sample to be tested, thus establishing the method for rapidly identifying the Chinese liquor by combining a principal component analytical method. A model for identifying the Chinese liquor is established, and sensory evaluation is not taken as the Chinese liquor quality identification method, so that different Chinese liquors can be objectively, digitally and comprehensively compared, and the method has a certain positive significance.

Description

technical field [0001] The invention belongs to the field of detection and analysis, and in particular relates to a liquor identification method, in particular to a method for identifying liquor brands using a fast gas-phase electronic nose. Background technique [0002] The electronic nose is a novel instrument for rapid analysis and identification of complex odors by simulating human sense of smell. It is generally composed of three parts: gas sensor array, signal processing system and pattern recognition system. At present, the well-known electronic nose systems include Alpha MOS in France, Airsense in Germany, Bloodhound and AromaScan in Britain, etc. [0003] The electronic nose is different from GC-MS, what it obtains is not the qualitative and quantitative results of one or several components in the tested sample, but the overall information of the volatile components in the sample. Traditional sensory evaluation requires well-trained sensory evaluation personnel, a...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for identifying liquor brands using a fast gas-phase electronic nose. The method described in the prior art will solve the problem that the detection cost of the GC-MS method in the prior art is high and the detection period is too high. Long and difficult technical problems

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