Method for determining volatile components of tobacco blasting bead by solid phase microextraction-gas chromatography-mass spectrometry
A volatile component, solid-phase micro-extraction head technology, applied in the field of tobacco, to achieve good separation effect
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Embodiment 1
[0029] 1 Samples, standards and instruments
[0030] 1.1 Instruments and equipment
[0031] GC-MS Gas Chromatography-Mass Spectrometry Instrument US PE Company; Supelco Solid Phase Microextraction Device US Supelco Company; Extraction head is 65 μm PDMS / DVB extraction head US Supelco Company.
[0032] 1.2 Sample
[0033] Randomly select cigarette products containing explosive beads from China Tobacco Industry Co., Ltd. in Shaanxi Province.
[0034] 2. Adsorption and desorption of aroma substances
[0035] Put the solid-phase micro-extraction head in the gas chromatograph inlet and age it at 250°C for 30 minutes for standby; randomly select 20 cigarettes, take out the cigarette popping beads and put them into the solid-phase micro-extraction bottle, quickly break the popping beads and seal them with the lid . Put it in a constant temperature water bath at 80°C for 30 minutes to fully volatilize and balance the aroma; then insert the needle of the solid phase microextraction...
Embodiment 2
[0047] 1. Comparison of different extraction methods
[0048] Method 1: Randomly select 20 pop-up beads, break the pop-up beads, add 20mL dichloromethane for ultrasonic extraction for 30min, take out the sample and let it stand for 30min, filter it through a 0.45μm organic phase needle filter membrane, and then perform GC-MS detection; the spectrum of the sample is as follows: image 3 and shown in Table 2.
[0049] Table 2 Dichloromethane Ultrasonic Extraction Component Analysis Table
[0050] serial number
keep time
name
CAS number
molecular formula
1
4.56
Dihydrofuran
1191-99-7
C 4 h 6 o
2
6.86
L-menthol
2216-51-5
C10H20O
3
36.67
Glyceryl Tricaprylate
538-23-8
C27H50O6
4
37.009
Glyceryl Tricaprylate Isomers
538-23-8
C27H50O6
5
44.42
Glyceryl tricaprate
621-71-6
C33H62O6
6
48.02
Glyceryl Tricaprylate Isomers
538-23-8
C27H50O6
...
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