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A rapid detection method for sulfur compounds in mainstream cigarette smoke

A technology for cigarette mainstream smoke and sulfur compounds, which is applied in the direction of measuring devices, test sample preparation, instruments, etc., and can solve problems such as large consumption of organic solvents, aging, and long time consumption

Active Publication Date: 2021-07-06
ZHENGZHOU TOBACCO RES INST OF CNTC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the complex 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 thioethers and mercaptans, different pretreatment methods are required, which is not suitable for the analysis of a large number of samples

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0028] 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:

[0029] (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, after grinding and dispersing, spherical gel particles were prepared by water column molding, 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.

[0030] (2) Capture of sulfur compounds in the mainstream smoke of cigarettes: Connect the adsorption tube to the pipeline of the smoking m...

Embodiment 2

[0038] 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:

[0039] (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 them at 280°C for 6 h. The obtained sample is Cu 2+ - Y molecular sieve spherical particles, the particles are filled into glass tubes.

[0040] (2) Capture of sulfur compounds in the mainstream smoke of cigarettes: Connect the adsorption tube to the pipeline of the smoking machine. One puff was take...

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Abstract

A rapid detection method for sulfur compounds in cigarette mainstream 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 mainstream smoke, and then uses a desorption instrument to detect sulfur compounds in cigarette mainstream smoke. Desorption, the gas after desorption is measured by real-time direct analysis mass spectrometry (DART-TOFMS), to realize the rapid and accurate qualitative and quantitative determination of sulfur compounds in mainstream cigarette 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 mainstream smoke. And it can cover the analysis of different types of sulfur compounds, avoiding the cumbersome operations of different types of sulfur compounds and different pre-treatments in traditional tests. The whole pre-treatment 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 measuring sulfur compounds in mainstream smoke of cigarettes, and in particular relates to a method for measuring sulfur compounds in mainstream smoke of cigarettes. This method uses a special adsorption tube to selectively capture sulfur compounds in mainstream cigarette smoke, then desorbs them with a desorber, and uses direct analysis in real time-mass spectrometry (DART-MS) to measure them. Rapid and accurate identification and quantification of sulfur compounds in flue gas. Background technique [0002] There are many kinds of sulfur compounds in mainstream cigarette smoke, including thiazoles, thiophenes, sulfides, mercaptans, etc., which are released in trace levels in cigarette smoke. Due to the complex 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; different sulfur comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/62G01N1/34
Inventor 秦亚琼王晓瑜崔华鹏张俊岭王宝林张书伟许衡刘绍锋余晶晶刘惠民蔡君兰赵晓东王冰
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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