Method for simultaneous detection of 22 kinds of polycyclic aromatic hydrocarbons in cigarette smoke
A technology for polycyclic aromatic hydrocarbons and substance content, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of low sensitivity and selectivity, tedious and time-consuming pretreatment, and high consumption of organic solvents, and achieve high sensitivity and sample pretreatment Convenience and pollution reduction effect
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Embodiment 1
[0047] Select a cigarette as sample A, balance and extract the cigarette sample to be tested, and use a rotary smoking machine according to the standard conditions required by GB / T 19609-2004 "Determination of Total Particulate Matter and Tar by Smoking Machine for Routine Analysis of Cigarettes" Smoking, 20 cigarettes per sample.
[0048] The total particulate matter in mainstream cigarette smoke is captured by the Cambridge filter; the Cambridge filter is placed in a 250mL ground-mouth Erlenmeyer flask, and the mixture containing deuterated naphthalene (320ng / mL) and deuterated benzo[a]pyrene is added (320ng / mL) cyclohexane solution 1mL as the internal standard solution, then add 40mL cyclohexane as the extractant; shake and extract the conical flask at room temperature for 40min, pass the extract through a 0.22μm nylon 66 filter membrane, collect The filtrate was stored in a chromatographic vial for GC-MS / MS analysis.
[0049] GC-MS / MS analysis conditions:
[0050] Chromato...
Embodiment 2
[0071] Repeat Example 1, with the following differences:
[0072] Select a cigarette as sample B, balance and extract the cigarette sample to be tested, and use a linear smoking machine according to the standard conditions required by GB / T 19609-2004 "Determination of Total Particulate Matter and Tar by Smoking Machine for Routine Analysis of Cigarettes" Smoking, 20 cigarettes per sample.
[0073] The total particulate matter in mainstream cigarette smoke is captured by the Cambridge filter; the Cambridge filter is placed in a 250mL ground-mouth Erlenmeyer flask, and the mixture containing deuterated benzo[a]anthracene (200ng / mL) and deuterated phenanthrene is added (200ng / mL) methanol solution 0.5mL as the internal standard solution, then add 20mL methanol as the extractant; shake the conical flask at room temperature and extract for 60min, pass the extract through a 0.22μm polyethersulfone (PES) filter membrane, Collect the filtrate in a chromatographic vial for analysis by...
Embodiment 3
[0080] Repeat Example 1, with the following differences:
[0081] Select a cigarette as sample C, balance and extract the cigarette sample to be tested, and use a rotary smoking machine according to the standard conditions required by GB / T 19609-2004 "Determination of Total Particulate Matter and Tar by Smoking Machine for Routine Analysis of Cigarettes" Smoking, 20 cigarettes per sample.
[0082] Collect the total particulate matter of mainstream cigarette smoke through the Cambridge filter; place the Cambridge filter in a 250mL ground-mouth Erlenmeyer flask, and add a dichloromethane solution containing deuterated benzo[a]pyrene (400ng / mL) 2mL was used as the internal standard solution, and then 100mL of dichloromethane was added as the extractant; after shaking and extracting the conical flask at room temperature for 60min, the extract was passed through a 0.45μm nylon 66 filter membrane, and the filtrate was collected in a chromatographic bottle for GC-MS / MS analysis.
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