Determination method of volatile organic acids in cigarette mainstream smoke

Abstract

The invention provides a determination method of volatile organic acids in cigarette mainstream smoke. According to the determination method, the content of the volatile organic acids in total particulate matters of the cigarette mainstream smoke is determined by adopting vibration extraction and a gas chromatography-mass spectrometry technology. The determination method particularly comprises the following steps: (1) preparing a standard solution; (2) pretreating a sample; (3) qualitatively detecting the sample; (4) quantitatively detecting the sample; and (5) determining the content of the actual sample. According to the determination method of the volatile organic acids in the cigarette mainstream smoke, a standard sample addition method is used for qualifying and an internal sample standard curve method is used for quantifying; the recycling rate of the method is 97.5%-110.3%; the relative standard deviation (RSD%) of the method is 1.2%-8.5%; and the determination method has good sensitivity, accuracy and precision. Meanwhile, the method adopts the vibration extraction and a sample can be directly fed without deriving; and the determination method is simple and convenient to operate, and rapid in analyzing speed and is suitable for the determination of a large batch of the samples.

Description

technical field [0001] The invention belongs to the technical field of analysis and detection of cigarette components, and in particular relates to a method for measuring volatile organic acids in mainstream smoke of cigarettes. Background technique [0002] Volatile organic acids are the main type of aroma substances in mainstream cigarette smoke, that is, lower fatty acids below C10 and some aromatic acids, which are mainly composed of 0.1-0.2% volatile organic acids contained in tobacco leaves themselves during the smoking process of cigarettes. It is produced by pyrolysis during direct transfer and smoking of tobacco leaves. Volatile organic acids can not only endow the smoke with an aromatic flavor, but also adjust the softness of the smoke, thus making a positive contribution to the smoking characteristics of cigarettes. Therefore, the determination of volatile organic acids in cigarette mainstream smoke has important guiding significance for sensory quality evaluatio...

AI Technical Summary

Problems solved by technology

However, when using gas chromatography and gas chromatography-mass spectrometry to analyze volatile organic acids, in order to improve the chromatographic separation effect, it usually needs to be derivatized and then analyzed, and the steps are cumbersome; while ion chromatography and high performance liquid chromatography do not need Derived but limited by selectivity and sensitivity

[0004] In recent years, headspace liquid-phase microextraction and headspace solid-phase microextraction, which integrate extraction, concentration, and derivatization, have been greatly developed. This technology can be used to determine volatile organic acids in mainstream cigarette smoke, but The method is not highly automated, and it is not easy to perform rapid analysis of batch samples

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