Method for measuring content of benzene and benzene series in glycerol triacetate

Abstract

The invention discloses a method for measuring content of benzene and benzene series in glycerol triacetate. The method comprises the following steps: preparing a standard working solution, analyzing by gaschromatographic mass spectrometry, drawing a standard curve, calculating a result, etc. After the improvement and optimization, the detection method has the advantages of simplicity, accuracy and sensitivity in operation, high recovery rate, good repeatability and the like. 2-hexanone is used as an interior label, so that by adopting the interior label quantitative detection, errors caused by the preparation process of a sample, different sample loading amounts or instrument precision and the like can be effectively reduced; the adopted chromatographic condition enables the separation degree of six target compounds and interior label chromatographic peaks to be better; moreover, the linear correlation property is better. The detection limit is 0.01 microgram / gram to 0.02 microgram / gram, the quantitative limit is 0.04 microgram / g to 0.06 microgram / gram, the loading recovery rate is 94 percent to 104 percent, and the average relative standard deviation is within 7 percent.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical detection of cigarette materials, and in particular relates to a method for measuring the content of benzene and benzene series in triacetin by using a gas chromatography-mass spectrometry method. Background technique [0002] Glyceryl triacetate is one of the main materials for forming cigarette tip rods, and is an essential plasticizer for acetate fiber tow in cigarette tip rods. It has a certain influence on the taste of finished cigarettes, and its quality will directly affect the quality of the filter rod. Solvents such as benzene or toluene, ethylbenzene or xylene may be used in the production process of triacetin, so there may be residues of benzene and benzene series. Excessively high levels of volatile harmful components such as benzene and benzene series not only have adverse effects on the smell of cigarettes, but more importantly, these harmful components may cause serio...

AI Technical Summary

Problems solved by technology

However, there is no limit on the content of triacetin that may be harmful to the human body

At present, there is no relevant report on the method of determining the content of benzene and benzene series in glycerol triacetate by gas chromatography-mass spectrometry

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