A method for determining the composition of solvents in e-cigarette liquid by gas chromatography-mass spectrometry
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A technology of gas chromatography mass spectrometry and e-cigarette liquid, which is applied in the field of e-cigarettes, can solve the problems of inaccurate qualitative and other problems, and achieve the effects of high sensitivity, good linear relationship and accurate detection results
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A technology of gas chromatography mass spectrometry and e-cigarette liquid, which is applied in the field of e-cigarettes, can solve the problems of inaccurate qualitative and other problems, and achieve the effects of high sensitivity, good linear relationship and accurate detection results
CN105067728BActive 📅 Publication Date: 2017-01-04CHINA TOBACCO ZHEJIANG IND
[0044] A method for determining the composition of solvents in electronic cigarette liquid by gas chromatography-mass spectrometry, comprising the following steps:
[0045] (1) Preparation of internal standard solution
[0046] Using 1,3-butanediol as the solute and methanol as the solvent, prepare an internal standard solution with a concentration of 500 μg / mL.
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Abstract
The invention discloses a method for measuring solvent compositions in nicotine liquid by combining gas chromatography and mass spectrometry. The method comprises the following steps of preparing a series of standard solutions simultaneously containing ethanol, 1,2-propylene glycol, glycerin, diethylene glycol, triethylene glycol, tetraethylene glycol and pentaethylene glycol by taking a methanol solution of 1,3-butylene glycol as an internal standard solution which serves as a solvent, detecting the series of standard solutions by utilizing gas chromatography-mass spectrometer, and establishing a standard curve; pre-treating the nicotine liquid to obtain a sample solution to be detected, detecting the sample solution to be detected by utilizing the gas chromatography-mass spectrometer, and calculating the solvent compositions in the nicotine liquid according to the corresponding standard curve. According to the method, ethanol, 1,2-propylene glycol, glycerin, diethylene glycol, triethylene glycol, tetraethylene glycol and pentaethylene glycol in a smokeless tobacco product can be simultaneously detected, and the method is easy to operate and high in sensitivity and reproducibility.
Description
technical field [0001] The invention relates to the technical field of electronic cigarettes, in particular to a method for measuring solvent composition in electronic cigarette liquid by gas chromatography-mass spectrometry. Background technique [0002] With the continuous strengthening of the government's tobacco control measures, new tobacco products have gradually become popular. Whether it is used for smoking cessation or as a substitute for traditional cigarettes, e-cigarettes have huge room for growth. E-cigarette is a portable electronic atomizer imitating cigarettes. Through the atomizer, the e-cigarette liquid is made into mist and inhaled directly. The process is similar to smoking real cigarettes. [0003] At present, domestic scholars have carried out relevant research work in the fields of e-cigarette formula, component analysis, and toxicology. Solvent is the main component of e-cigarette liquid. At present, the solvents used in e-cigarette liquid mainly inc...
Claims
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