Mass spectrometer for online detection of cigarette smoke aerosol particulate matter chemical components

An aerosol particle and chemical composition technology, which is applied in scientific instruments, instruments, measuring devices, etc., can solve the problems that off-line analysis technology is difficult to detect the composition change process and complex chemical composition, and achieve high sensitivity, fast time response, and avoid aging effect of influence

Pending Publication Date: 2021-08-24
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
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Problems solved by technology

However, the chemical composition of cigarette smoke aerosol particles is very complex and changes dynamically with time. Moreover, the particle size and chemical composition of cigarette smoke aerosol particles are closely related to the flow rate and residence time of smoke inha

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  • Mass spectrometer for online detection of cigarette smoke aerosol particulate matter chemical components

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[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] According to one embodiment of the present invention, a mass spectrometer for online detection of the chemical composition of cigarette smoke aerosol particles is provided, such as figure 1 As shown, it includes: a cigarette clamp 1, an electromagnetic three-way valve 2, a suction chamber 3, an aerodynamic lens 4, a thermal desorption vaporizer 5, an ionization source 6, an ion guide 7, and a mass analyzer 8. The cigarette holder 1 and the s...

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Abstract

The invention discloses a mass spectrometer for online detection of cigarette smoke aerosol particulate matter chemical components. The mass spectrometer mainly comprises a smoking machine, an aerodynamic lens, a thermal desorption gasifier, an ion importer, a mass analyzer and the like. The smoking machine is used for simulating the cigarette smoking process of a person, generated smoke aerosol is transmitted into the vacuum cavity through the aerodynamic lens, particulate matter and carrier gas in the smoke aerosol are separated, after the particulate matter is converged and transmitted to the thermal desorption gasifier, the particulate matter absorbs heat of the thermal desorption gasifier to form gaseous molecules, the gaseous molecules are ionized through the ionization source, and the generated ions are vertically introduced into a mass analyzer through an ion introducer, and the mass of the ions is measured, so that the chemical component information of the cigarette smoke aerosol particulate matters is obtained.

Description

technical field [0001] The invention relates to the technical fields of detection and analysis of chemical components of cigarette smoke aerosol particles and mass spectrometry, in particular to a mass spectrometer device for online detection of chemical components of cigarette smoke aerosol particles. Background technique [0002] Cigarettes produce aerosol particles during combustion or heating, and their chemical composition is often collected through Cambridge filter discs first, and then combined with off-line analysis by chromatography, liquid chromatography-mass spectrometry and other equipment. However, the chemical composition of cigarette smoke aerosol particles is very complex and changes dynamically with time. Moreover, the particle size and chemical composition of cigarette smoke aerosol particles are closely related to the flow rate and residence time of smoke inhalation. Analytical techniques are difficult to detect the composition change process of cigarette ...

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Application Information

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IPC IPC(8): G01N27/62G01N27/64
CPCG01N27/62G01N27/64
Inventor 唐小锋温作赢顾学军张龙刘勇张为俊
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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