Device for analyzing gas phase chemical components of cigarette smoke on line

Abstract

The invention discloses a device for analyzing gas phase chemical components of cigarette smoke on line, which is characterized in that: a smoke-transmitting quartz capillary is arranged between the sucking barrel of a smoking machine and an on-line analytical mass spectrometer; two openings are formed on the end faces of the sucking barrel; one opening is a smoke analysis sampling opening; the other opening is a smoke importing and exporting opening which is connected with a three-way pipe; the three-way pipe is communicated with a cigarette holder which can continuously switch and a pipeline vacuum extracting opening at the same time; a vacuum ultraviolet ionization area is formed in the on-line analytical mass spectrometer; one port of the smoke-transmitting quartz capillary is connected with the smoke sampling opening on the sucking barrel; and the other port of the smoke-transmitting quartz capillary passes through the cavity wall of the on-line analytical mass spectrometer and enters the vacuum ultraviolet ionization area. By using the device for analyzing the gas phase chemical components of the cigarette smoke on line, the influence of the smoke of a last toke on the analysis result of the gas phase components of the smoke of a next toke can be effectively eliminated in the process of sucking a cigarette toke by toke, and the gas phase components of a single toke of the cigarette smoke can be automatically and continuously analyzed on line.

Description

Technical field [0001] The invention relates to an analysis device for the gas phase chemical composition of cigarette smoke, and more specifically an online and real-time analysis device for the gas phase composition of single-puff cigarette smoke. Background technique [0002] Cigarette smoke is the most important characterization of cigarette products to consumers, and the most important factor reflecting the quality and style of cigarettes. Therefore, the analysis of the chemical composition of cigarette smoke is a very important research work, and it is also one of the key elements to construct the core technology of cigarettes. [0003] Cigarette smoke is also a very complex chemical mixture. So far, thousands of substances have been identified from it. Generally, for the convenience of research, people use Cambridge filters to divide the flue gas into particulate matter and gas phase substances. The part of the flue gas that can pass through the Cambridge filter at room tem...

AI Technical Summary

Problems solved by technology

However, Mitschke et al. found that due to the long flue gas flow pipe of commercial smoking machines, a large amount of residual flue gas components are often attached to the inner wall, which will greatly interfere with the quantitative analysis results of the next puff of flue gas; in order to eliminate the interference, Mitschke et al. used Self-made smoking devices replace commercial smoking machines, and manually pull out cigarettes between every two puffs of smoke, and use air suction to remove residual smoke, but it still cannot eliminate the smoke caused by residual smoke. interference effect; in addition, the self-made smoking device used by Mitschke et al. is cumbersome to operate and is mainly used for basic research, and cannot carry out continuous and automatic detection of cigarette smoke; The use of self-made smoking devices is not conducive to the comparison of smoke analysis results between laboratories

Therefore, its specific application has been greatly limited

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