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Method for detecting tert-butanol in tobacco adhesive

A detection method and adhesive technology, applied in the field of headspace gas chromatography, can solve the problems such as the lack of industry standards, achieve good accuracy, accurate and reliable results, and eliminate the effect of pretreatment steps

Active Publication Date: 2014-03-19
CHINA TOBACCO GUANGDONG IND
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, headspace gas chromatography is mostly used for the determination of solvent residues in cigarette packaging materials, but so far there has been no use of headspace gas chromatography to detect tert-butanol in cigarette adhesives, and no relevant industry standards have been issued

Method used

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  • Method for detecting tert-butanol in tobacco adhesive
  • Method for detecting tert-butanol in tobacco adhesive
  • Method for detecting tert-butanol in tobacco adhesive

Examples

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Embodiment 1

[0025] The reagents used in this embodiment are: adhesive for cigarettes and analytically pure tert-butanol.

[0026] The instruments used in this example are: GC9800 gas chromatograph (Shanghai Kechuang Chromatographic Instrument Co., Ltd.); DK-3001A type headspace sampler, headspace bottle and manual capper (Beijing Zhongxing New Technology Research Institute of Analytical Instruments) .

[0027] The headspace conditions were set as follows: the heating temperature of the headspace bottle was 100°C, the sample loop temperature was 120°C, the transfer line temperature was 140°C, and the sample equilibration time was 30min.

[0028] The gas chromatograph is set as follows: the chromatographic column is a 60m×0.32mm×1.8μm DB-624 chromatographic column; the carrier gas is high-purity nitrogen (purity greater than 99%), and the column pressure is 0.05MPa; the inlet temperature: 260°C; FID detector temperature: 270°C; split ratio: 10:1; column temperature conditions: the initial ...

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Abstract

The invention discloses a method for detecting tert-butanol in a tobacco adhesive. Specifically, headspace gas chromatography is adopted. The method comprises the following steps of: weighing a sample to be detected, placing the sample to be detected into a headspace sample introduction bottle, sealing the headspace sample introduction bottle, balancing the headspace sample introduction bottle for 30 to 40 minutes at 100 to 120 DEG C, and extracting a gas from the bottle for gas chromatography, wherein the column temperature conditions of a gas chromatograph are that: initial temperature is 50 DEG C, heat is preserved for 2 minutes, the temperature is raised to 60 DEG C at speed of 1 DEG C per minute, the heat is preserved for 5 minutes, the temperature is raised to 120 DEG C at the speed of 3 DEG C per minute, and the heat is preserved for 5 minutes. The method is used for analyzing the tert-butanol in the tobacco adhesive, and is simple, convenient, quick and high in reproducibility.

Description

technical field [0001] The invention relates to the field of organic matter detection, in particular to a headspace gas chromatography method for detecting tert-butanol in adhesives. Background technique [0002] Organic volatile substances in tobacco adhesives, that is, organic residues (methanol, acetone, tert-butanol, tert-butanol, vinyl acetate, ethyl acetate, etc.) bodies and organic solvents. Tert-butanol is a slightly toxic substance, which has higher toxicity and anesthesia than other butanols. The olfactory threshold concentration is 2.21mg / m 3 , the maximum allowable concentration in the workplace is 300mg / m 3 , Rat oral LD50 is 3.5g / kg. Compared with other alcohols, it has higher toxicity and anesthesia. Inhalation is harmful to the body and has irritating effects on eyes, skin, mucous membranes and respiratory tract. [0003] In today's society, people are paying more and more attention to health, leading to the trend of "green" and "harmless" smoking mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88
Inventor 张优茂
Owner CHINA TOBACCO GUANGDONG IND
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