Online measuring device for photo ionization efficiency curve of cigarette smoldering side-stream smoke gas phase composition
A technology for side-stream flue gas and gas phase composition is applied in the field of chemical composition analysis of cigarette smoke, which can solve the problems of differences in the combustion state of cigarette combustion cones, affecting the stability of side-stream flue gas, and unable to provide a stable flue gas injection flow, etc. Achieve the effect of real-time measurement, simple structure and convenient measurement
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Embodiment 1
[0035] A special research cigarette with a length of 15 cm, a circumference of 24.2 mm and no filter was used as the research object; the inner diameter and length of the smoke transmission quartz capillary were set to 100 μm and 25 cm, respectively, and the heating temperature was set to 200 ℃; the working flow rate of the flowmeter is set to 2000mL / min; the energy scanning step size of the photoionization time-of-flight mass spectrometer is set to 4 angstroms, the measurement time of each mass spectrogram is set to 10 seconds, and the photon energy scanning range is set to Set at 8.0-10.6eV. After the measurement, plot the photon energy value on the abscissa and the ion intensity on the ordinate to obtain the photoionization efficiency curves of flue gas components with different mass numbers.
[0036] The photoionization efficiency curves of several representative smoke components with mass numbers of 54, 78, 92 and 106 in the gas phase of cigarette smoldering sidestream sm...
Embodiment 2
[0038] Basically the same as in Example 1, the difference is that a conventional cigarette with a cigarette length of 84 mm, a tipping paper length of 32 mm, and a circumference of 24.2 mm is selected as the research object; The three energy ranges of 8.0-8.7eV, 8.7-9.6eV and 9.6-10.6eV are measured separately, that is, the first cigarette is measured in the energy range of 8.0-8.7eV, and then the second cigarette is measured in the energy range of 8.7-9.6eV. cigarette, and finally a third cigarette was measured in the energy range of 9.6-10.6eV. After the measurement is over, integrate the photon energy of each scanning energy segment and the corresponding mass spectrum peak ion intensity into the same file, and plot the photon energy value on the abscissa and the ion intensity value on the ordinate to obtain different mass-charge values. The photoionization efficiency curve of specific flue gas components in the photon energy range of 8.0-10.6eV.
[0039] The photoionizatio...
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