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Analysis method for semi-volatility component in cigarette main stream flue gas

A cigarette mainstream smoke and semi-volatile technology, applied in the direction of analysis of materials, material separation, measurement devices, etc., can solve the problems of cumbersome separation and purification treatment, and achieve the effects of high sensitivity, repeatability and good recovery rate

Inactive Publication Date: 2008-03-12
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this method is used for analysis, it is necessary to carry out cumbersome solvent extraction and separation and purification treatment on the sample in order to obtain better measurement results (N.P.Kulshreshtha, S.C.Moldoveanu, Journal of Chromatography A.2003, 985: 303-312.)

Method used

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  • Analysis method for semi-volatility component in cigarette main stream flue gas
  • Analysis method for semi-volatility component in cigarette main stream flue gas
  • Analysis method for semi-volatility component in cigarette main stream flue gas

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Smoke the balanced and screened cigarettes according to the standard conditions specified in YC / T 29-1996, suck 4 cigarettes in each hole, and use the Cambridge filter to trap the particulate matter in the mainstream smoke of the cigarettes, and connect them after the trap. A XAD-4 resin adsorption tube to capture the mainstream smoke gas phase.

[0017] Particulate matter extraction: Fold the Cambridge filter disc that traps the particulate matter into an Erlenmeyer flask, pipette 20mL of 0.01% triethylamine / methanol extract containing a certain amount of internal standard (D7-quinoline), and store at room temperature Ultrasonic extraction for 30min, let stand for 5min. Take 2 mL of the extract, filter it with a 0.45 μm microporous membrane, and analyze the filtrate by GC-MS.

[0018] Gas phase extraction: transfer the adsorbent in the XAD adsorption tube to a 10 ml chromatographic bottle, add 3 mL of 0.01% triethylamine / methanol extract containing a certain amount of...

Embodiment 2

[0024] The Kentucky reference cigarette 2R4F was smoked according to the standard conditions stipulated in YC / T 29-1996, 4 cigarettes were smoked in each tunnel, and 5 parallel experiments were carried out. The Cambridge filter is used to capture the particulate matter of mainstream cigarette smoke, and an XAD-4 resin adsorption tube is connected behind the trap to capture the gas phase matter of mainstream smoke.

[0025] Extraction of particulate matter: Fold the Cambridge filter that traps the particulate matter into an Erlenmeyer flask, add 20 mL of 0.01% triethylamine / methanol extract containing a certain amount of internal standard (D7-quinoline), and ultrasonicate at room temperature Extract for 20min. Take 2 mL of the extract, filter it with a 0.45 μm microporous membrane, and analyze the filtrate by GC-MS.

[0026] Gas phase extraction: transfer the adsorbent in the XAD adsorption tube to a 10 ml chromatographic bottle, add 3 mL of 0.01% triethylamine / methanol extrac...

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Abstract

A method to analyze semivolatile compositions in main gas flows of cigarettes is characterized in that the method includes steps below: (1) Capturing semivolatile substances in main gas flows of cigarettes: using a Cambridge filter pad to capture particle phase substances of main gas flows during smoking and adopting a XAD-4 adsorption tube to capture gas phase substances; (2) Extraction and analysis of gas samples: utilizing methanol solution containing interior labels to realize ultrasonic extraction to the particle phase substances and gas phase substances in main gas flows and directly make these substances enter into a gas chromatograph-mass spectrograph after being filtered by a filter membrane for detection. Compared with prior methods of analyzing semivolatile substances in main gas flows, the method rejects complex sample processing steps, has the advantages of simple operation, high measuring sensitivity and great accuracy, is capable of detecting 20 types of semivolatile compounds, brings excellent test repeatability and recovery rate and is suitable for large-scale sample analysis.

Description

technical field [0001] The invention belongs to a new method for capturing and analyzing semi-volatile components in mainstream smoke of cigarettes. This method uses XAD adsorption tubes to capture the main semi-volatile organic compounds in the gas phase of mainstream smoke, combined with the filter trapping method, the capture of semi-volatile substances in mainstream smoke is realized, and gas chromatography-mass spectrometry GC -MS realized the simultaneous determination of 20 semi-volatile organic compounds in mainstream cigarette smoke. Background technique [0002] Cigarettes undergo complex chemical reactions during the combustion process, and more than 3,000 compounds have been identified in the smoke, among which semi-volatile organic compounds are an important component, which are distributed in both the particulate matter and the gaseous phase of mainstream smoke . Among the semi-volatile organic compounds, pyridine, styrene and quinoline have certain hazards t...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06
Inventor 谢复炜赵阁夏巧玲赵乐王昇
Owner ZHENGZHOU TOBACCO RES INST OF CNTC