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A rapid detection method for sulfur compounds in cigarette sidestream smoke

A technology of sidestream flue gas and sulfur compounds, applied in the direction of measuring devices, test sample preparation, instruments, etc., can solve the problems of cumbersome process, large consumption of organic solvent, long time consumption, etc., and achieve the effect of simple pretreatment

Active Publication Date: 2021-07-13
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the complexity of the flue gas matrix, the traditional pretreatment and detection methods need to purify and separate the extract of flue gas sulfur compounds. A large number of organic solvents; due to the large difference in polarity of different sulfur compounds, such as thioether and mercaptan, different pretreatment methods are required, which is not conducive to the analysis and determination of a large number of samples

Method used

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  • A rapid detection method for sulfur compounds in cigarette sidestream smoke
  • A rapid detection method for sulfur compounds in cigarette sidestream smoke

Examples

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Effect test

Embodiment 1

[0029] The adsorption tube made of spherical modified copper-loaded Y molecular sieve particles was used to capture sulfur compounds in cigarette smoke, and after desorption, it was analyzed and determined by DART-TOFMS in real time. Specific steps are as follows:

[0030] (1) Fabrication of the adsorption tube: Take an appropriate amount of NaY molecular sieve and immerse it in a copper nitrate solution with a concentration of 0.25 mol / L. After loading for 12 h, wash it with deionized water until no Cu is detected in the filtrate. 2+ So far, the binder aluminum sol was added, ground and dispersed, prepared into spherical gel particles by water column molding method, placed in a muffle furnace, and dried at 120 °C for 12 h, the obtained sample was Cu 2+ - Y molecular sieve spherical particles, the particles are filled into glass tubes.

[0031] (2) Capture of sulfur compounds in cigarette sidestream smoke: connect the adsorption tube to the smoking machine pipeline, and use a...

Embodiment 2

[0039] The adsorption tube made of spherical modified copper-loaded Y molecular sieve particles was used to capture the sulfur compounds in the flue gas of cigarettes, and after desorption, it was analyzed and determined by DART-TOFMS in real time. Specific steps are as follows:

[0040] (1) Fabrication of the adsorption tube: Take an appropriate amount of NaY molecular sieve and immerse it in a copper nitrate solution with a concentration of 0.5 mol / L. After loading for 24 hours, wash it with deionized water until no Cu is detected in the filtrate. 2+ Until now, add silica sol, grind and disperse, prepare spherical gel particles by water column molding, place them in a muffle furnace, and dry at 300°C for 6 h. The obtained sample is Cu 2+ - Y molecular sieve spherical particles, the particles are filled into glass tubes.

[0041] (2) Capture of sulfur compounds in cigarette sidestream smoke: connect the adsorption tube to the smoking machine pipeline, and use a full smoke ho...

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Abstract

A rapid detection method for sulfur compounds in cigarette sidestream smoke, characterized in that the method uses an adsorption tube made of spherical modified copper-loaded Y molecular sieve particles to capture sulfur compounds in cigarette sidestream smoke, and then uses a desorbent The desorbed gas is desorbed by the attached instrument, and the desorbed gas is measured by real-time direct analysis mass spectrometry (DART‑TOFMS). Realize rapid and accurate identification and quantification of sulfur compounds in cigarette sidestream smoke. For the first time, the present invention applies the analysis method combining adsorption tube capture and real-time direct analysis mass spectrometry to the determination of sulfur compounds in cigarette sidestream smoke. The method has simple pretreatment and real-time measurement by instrument analysis, which is faster and simpler than traditional analysis and determination. , and can cover different types of sulfur compound analysis, avoiding the cumbersome operations of different types of sulfur compounds and different pretreatments in traditional tests, and the entire pretreatment process does not introduce organic solvents, which is more environmentally friendly than traditional analysis.

Description

technical field [0001] The invention belongs to the technical field of determination of sulfur compounds in cigarette sidestream smoke, and in particular relates to a method for determining sulfur compounds in cigarette sidestream smoke. This method uses a special adsorption tube to selectively capture sulfur compounds in cigarette sidestream smoke, and then desorbs them with a desorber. Rapid and accurate identification and quantification of sulfur compounds in sidestream flue gas. Background technique [0002] Cigarette sidestream smoke refers to all the smoke that penetrates from any other part of the cigarette except the smoke that flows out from the inhalation end. It is one of the important ways to generate "second-hand smoke" and is the incomplete combustion of cigarette materials. and cleavage products. Cigarettes release a large amount of sidestream smoke when they burn, and there are many substances important to sensory effects, such as sulfur compounds and aldeh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/62G01N1/34
Inventor 秦亚琼樊美娟王晓瑜余晶晶蔡君兰王冰赵晓东刘克建刘绍锋刘惠民
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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