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Quick detection method for sulfur compound in cigarette mainstream smoke

A technology of mainstream cigarette smoke and sulfur compounds

Active Publication Date: 2019-05-28
ZHENGZHOU TOBACCO RES INST OF CNTC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Quick detection method for sulfur compound in cigarette mainstream smoke
  • Quick detection method for sulfur compound in cigarette mainstream smoke

Examples

Experimental program
Comparison scheme
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) Production 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 taken...

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Abstract

The invention discloses a quick detection method for a sulfur compound in cigarette mainstream smoke. The method is characterized in that an adsorption pipe which is prepared from spherical modified copper-loading Y molecular sieve particles is adopted for trapping the sulfur compound in the cigarette mainstream smoke; then a desorption instrument is utilized for desorption, desorbed gas is directly measured through direct analysis in real time-massspectrometry (DART-MS), so that the sulfur compound in the cigarette mainstream smoke is quickly and accurately qualified and quantified. Accordingto the method, it is the first time to apply an analysis method of combining trapping by the adsorption pipe and direct analysis in real time-massspectrometry to measurement of the sulfur compound inthe cigarette mainstream smoke. The method is simple in pretreatment, instrument analysis is measured in real time, the method is quicker and more convenient than traditional analysis determination,and can cover analysis of sulfur compounds of different types; the different complicated operations of pretreatment due to differences in the types of the sulfur compounds in traditional testing are avoided, no organic solvent is introduced in the whole pretreatment process, and the method 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 Applications(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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