A method to identify the authenticity of cigarettes using hs-imr-ms
An HS-IMR-MS, cigarette technology, applied in the field of cigarette identification, can solve the problems of complex chemical composition, reduced accuracy of mathematical modeling, long analysis time, etc. Stable and accurate results
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Embodiment 1
[0045] A method for identifying the authenticity of cigarettes using HS-IMR-MS, using headspace sampler and IMR-MS to quickly collect and analyze the volatile components of cigarettes, and obtain the mass spectra of volatile components of genuine cigarettes and the same brand of cigarettes to be tested Fingerprint, combined with similarity analysis, compared with the qualified threshold of genuine cigarettes, to realize the rapid identification of the authenticity of the cigarettes to be tested.
[0046] Specifically include the following steps:
[0047] S1, sample preparation,
[0048] Prepare 10 batches of genuine Yunyan (soft treasure) cigarettes produced in March-July, 2016, and randomly select one cigarette from each cigarette for the experiment; prepare one piece of fake Yunyan (soft treasure) cigarettes collected at random. Take 3 cigarettes as the cigarettes to be tested.
[0049] Place the above 10 authentic Yunyan (soft treasures) and 3 untested Yunyan (soft treasure...
Embodiment 2
[0071] In Example 2, 10 batches of genuine Yuxi (soft) cigarettes produced in April-July, 2016 were selected, and each cigarette was randomly selected for the experiment; in addition, the counterfeit Yuxi (soft) cigarettes collected were prepared One, 3 cigarettes were randomly selected as the cigarettes to be tested, and the rest were implemented according to Example 1.
[0072] Authentic Yuxi (soft) average mass spectrum fingerprint figure 2 As shown, the similarity between 10 batches of authentic Yuxi (soft) mass spectrum fingerprints and the average mass spectrum fingerprints is shown in Table 3, and the determination results of the cigarettes to be tested are shown in Table 4.
[0073] It can be seen from Table 3 that the minimum similarity between the genuine Yuxi (soft) product and the average mass spectrum fingerprint is 97.70%, so the qualification threshold for determining the genuine Yuxi (soft) product is 94.8%. As can be seen from Table 4, the similarities betwe...
Embodiment 3
[0079] In Example 3, 10 batches of genuine Hongtashan (hard classic) cigarettes produced in February-June, 2016 were selected, and each cigarette was randomly selected for the experiment; in addition, Hongtashan (hard classic) cigarettes collected on the market to be identified were prepared. One hard classic) cigarette, 3 are randomly selected as the cigarette to be tested, and the rest are implemented according to Example 1.
[0080] Authentic Hongtashan (hard classic) average mass spectrum fingerprint image 3 As shown, the similarity between 10 batches of authentic Hongtashan (hard classic) mass spectrum fingerprints and the average mass spectrum fingerprints is shown in Table 5, and the determination results of the cigarettes to be tested are shown in Table 6.
[0081] It can be seen from Table 5 that the minimum similarity between the genuine Hongtashan (hard classic) and the average mass spectrum fingerprint is 97.12%, so the qualification threshold for determining the ...
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