Method for simultaneously determining multiple inorganic elements in cigarette liquid of electronic cigarette

A technology of electronic cigarette liquid and inorganic elements, which is applied in measuring devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of trace or ultra-trace, low content of inorganic elements, low sensitivity, etc., and achieve application High-value, high-accuracy, high-sensitivity effects

Inactive Publication Date: 2015-11-04
云南同创检测技术股份有限公司
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Problems solved by technology

[0003] For the determination of inorganic elements, traditional determination methods such as spectrophotometry, atomic absorption method, etc., have cumbersome process, long analysis period and low sensitivity.
The content of five inorganic elements such as chromium, nickel, arsenic, cadmium, and lead contained in e-cigarette liquid is relatively low, and most of them belong to the range of trace or ultra-trace. The above traditional detection methods cannot meet the requirements of these trace elements. Simultaneous quantitative detection of

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  • Method for simultaneously determining multiple inorganic elements in cigarette liquid of electronic cigarette
  • Method for simultaneously determining multiple inorganic elements in cigarette liquid of electronic cigarette
  • Method for simultaneously determining multiple inorganic elements in cigarette liquid of electronic cigarette

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Embodiment Construction

[0025] Below by embodiment the present invention is further described:

[0026] A method for simultaneously determining chromium, nickel, arsenic, cadmium, and lead in electronic cigarette liquid by applying inductively coupled plasma mass spectrometry, the method steps are as follows:

[0027] (1) Preparation of measuring instruments and materials: inductively coupled plasma mass spectrometer (Agilent 7700x, USA); micro-controlled digital display electric heating plate (Lebtech EH20B); analytical balance, sensitivity 0.0001g (Mettler AB204-S , Switzerland); Volumetric flask, 50mL, 100mL; Erlenmeyer flask, 250mL. Water (should meet the requirements of first-class water in GB / T 6682); hydrogen peroxide, superior grade 30% (mass fraction); nitric acid, (65-71%, Ultra, SIGMA); internal standard stock solution: germanium, indium, bismuth (100mg / L, Agilent, the U.S.); internal standard solution: dilute the internal standard stock solution to a volume concentration of 1.0mg / L with...

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Abstract

Provided is a method for simultaneously determining multiple inorganic elements in cigarette liquid of an electronic cigarette. The content of chrome, nickel, arsenic, cadmium and lead in the cigarette liquid of the electronic cigarette is simultaneously determined through an inductively coupled plasma mass spectrometry method. The method comprises the steps that determining instruments and materials are prepared; a sample solution is prepared; ICP-MS analysis conditions are determined; a standard curve is drawn; the result is calculated. According to the method, high sensitivity, good stability and high accuracy are achieved, and the five inorganic elements including chrome, nickel, arsenic, cadmium and lead can be fast and simultaneously determined.

Description

technical field [0001] The invention relates to the technical field of electronic cigarette liquid detection, in particular to a method for measuring the contents of chromium, nickel, arsenic, cadmium and lead in electronic cigarette liquid. Background technique [0002] An electronic cigarette is an electronic device that converts the electronic cigarette solution into smoke through an atomizer, and delivers nicotine and other substances to the respiratory system. Chromium, nickel, arsenic, cadmium, lead and other elements are harmful to the human body. During the process of smoking e-cigarettes, the chromium, nickel, arsenic, cadmium, lead and other inorganic elements contained in e-cigarette liquid will also be Smoke enters the human body directly from the respiratory tract. In order to objectively and comprehensively evaluate the safety of e-cigarettes, it is necessary to accurately determine the contents of chromium, nickel, arsenic, cadmium, and lead contained in e-ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G01N27/626
Inventor 侯英段姚俊杨蕾邹悦杨燕王玉杨式华邱昌桂刘静和玉凤吴建伟李映梅潘纯祥廖予琦
Owner 云南同创检测技术股份有限公司
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