Gas chromatography-mass spectrometry combined detection method of 17 phthalate compounds in cigarette stay wire

Abstract

The invention discloses a gas chromatography-mass spectrometry combined detection method of 17 phthalate compounds in a cigarette stay wire. The method comprises the steps of preparation of internal standard extract, a standard working solution and a sample solution, calculation of a gas chromatography-mass spectrometry condition and a determination result and the like. The improved and optimized detection method has the advantages of being simple and accurate to operate, high in sensitivity, high in yield, good in repeatability and the like. According to the method, an error caused by pretreatment or instrument precision and the like is effectively reduced by adopting internal standard; the 17 target compounds and an internal standard chromatographic peak achieve good separating degree by the adopted chromatographic condition; the gas chromatography-mass spectrometry combined detection method has good linear dependence; the detection limit is 0.2-2.1mg / Kg; the mark recovery rate is 81-113%; and the relative standard deviation (RSD) is smaller than 5%.

Description

technical field [0001] The invention belongs to the technical field of physical and chemical testing of phthalates in cigarette materials, and in particular relates to a gas chromatography-mass spectrometry detection method for 17 kinds of phthalates in cigarette drawstrings. Background technique [0002] Phthalate ester compounds are a type of product obtained by the reaction of phthalic anhydride and alcohol. They are the most common plasticizers in the plastic industry and are widely added to the production of polymer plastic products in daily and industrial applications, such as Polyvinyl chloride (PVC), polypropylene (PP), and foam can also be added to adhesives, paints, inks, etc. Phthalate compounds can be seen in plastic products commonly used in daily life . However, as a class of environmental hormones, phthalates can easily cause endocrine disorders, reproductive dysfunction and other hazards. [0003] Based on the fact that phthalates can cause serious toxic ha...

AI Technical Summary

Problems solved by technology

In the prior art, there is no corresponding national standard or industry standard for the content of phthalate compounds in the pull wire for cigarettes. When testing, tobacco companies generally focus on physical indicators such as cohesiveness, resulting in various The quality of pull wire products produced by tobacco companies is uneven

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