Method for damage-free discrimination for genuine-fake cigarette by near-infrared spectral analysis technology
A technology of near-infrared spectroscopy and analysis technology, applied in the field of cigarette anti-counterfeiting, can solve problems such as difficult promotion and application, cumbersome and complicated equipment, etc., and achieve the effect of high identification accuracy and simple identification process
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Embodiment 1
[0022] Using near-infrared spectral analysis technology to non-destructively identify the authenticity of Yunyan (impression) cigarettes:
[0023] 1. Sample preparation: prepare genuine Yunyan (impression) cigarette samples, take 20 cigarettes from the same batch, and sample 1000 cigarettes in total for model building. The cigarettes were equilibrated for 24 hours at a temperature of 22±1°C and a humidity of 60%±2%, and the spectra of the sampled cigarettes were collected within one week of sampling.
[0024] 2. Spectral data collection: FT-NIR spectrometer (model Antaris, American Thermo Electric Company) was used to collect sample spectra. Spectral collection conditions are: spectral collection method: diffuse reflection of integrating sphere; scanning range (Data Range): 4000-10000cm -1 ;Resolution: 8cm -1 ; Number of scans: 30 times; Reference setting: use the gold-plated inner wall of the integrating sphere as the background, and the background spectrum must be collecte...
Embodiment 2
[0033] Non-destructive identification of Yunyan (soft treasure) cigarettes by using near-infrared spectral analysis technology:
[0034] 1. Sample preparation: Yunyan (soft treasure) is used for the sample, and the others are the same as in Example 1.
[0035] 2. Spectral data collection: same as in Example 1.
[0036] 3. Model construction: the selected modeling parameters are shown in Table 2, and the others are the same as in Example 1.
[0037] Table 2. Modeling optimization parameters of the similarity matching model of Yunyan (soft treasure) cigarettes
[0038]
[0039] 4. Calculate the similarity matching critical value: Based on the similarity matching model of Yunyan (soft treasure) cigarettes, calculate the similarity matching critical value CV=(94+77.78) / 2=85.89 of Yunyan (soft precious) cigarettes.
[0040] 5, identification: repeat step 2, collect the spectral data of the cigarette to be identified, based on the similarity matching model of Yunyan (soft treas...
Embodiment 3
[0042] Non-destructive identification of Yunyan (purple) cigarettes by using near-infrared spectral analysis technology:
[0043] 1. Sample preparation: Yunyan (purple) is used for the sample, and the others are the same as in Example 1.
[0044] 2. Spectral data collection: same as in Example 1.
[0045] 3. Model construction: the selected modeling parameters are shown in Table 3, and the others are the same as in Example 1.
[0046] Table 3. Modeling optimization parameters of the similarity matching model for Yunyan (purple) cigarettes
[0047]
[0048] 4. Calculation of similarity matching critical value: based on the similarity matching model of Yunyan (purple) cigarettes, calculate the similarity matching critical value of Yunyan (purple) cigarettes CV=(96+88.72) / 2=92.36.
[0049] 6, identification: repeat step 2, collect the spectral data of the cigarette to be identified, based on the similarity matching model of Yunyan (purple), calculate the spectral similarity ...
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