Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for measuring main phenolic compounds in electronic cigarette liquid

A technology of e-cigarette liquid and phenolic compounds, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of no research reports, etc., and achieve the effects of simplified elution procedures, high sensitivity, and easy operation

Inactive Publication Date: 2014-05-21
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is of great significance to accurately determine the content of phenolic compounds in e-cigarette liquid, but there is no relevant research report so far

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for measuring main phenolic compounds in electronic cigarette liquid
  • Method for measuring main phenolic compounds in electronic cigarette liquid
  • Method for measuring main phenolic compounds in electronic cigarette liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Instruments, reagents and instrument working conditions

[0035] 1) Instrument

[0036] DIONEX Ultimate 3000 high performance liquid chromatography with fluorescence detector (Thermo SCIENTIFIC); AE163 electronic balance (sensitivity: 0.0001 g, Mettler, Switzerland); Milli-Q Integral ultrapure water system (Millipore); ultrasonic generation Device (KQ-700DB CNC ultrasonic cleaner).

[0037] 2) Reagents

[0038] Phenol, hydroquinone, resorcinol, catechol, m-cresol, p-cresol and o-cresol are all standard products; acetic acid (ultra-pure grade, TEDIA, USA); ultra-pure water.

[0039] 3) Liquid chromatography conditions

[0040] Chromatographic column: Phenomenex Luna 5u C18(2) 100A, 150 mm × 4.60 mm, 5 μm; column temperature: 30°C; mobile phase: acetic acid-acetonitrile-water (1+30+69); flow rate: 1 mL / min; Injection volume: 10 μL; Isocratic elution: 10 min; Fluorescence detector conditions:

[0041] serial number time / min Excitation wavelength / nm ...

Embodiment 2

[0061] According to the high performance liquid chromatography method described in Example 1, an e-cigarette liquid B was selected, and the content of phenol in it was measured to be 0.74 μg / g, and other phenolic compounds were not detected.

Embodiment 3

[0063] According to the high-performance liquid chromatography method described in Example 1, an electronic cigarette liquid C was selected, and the contents of catechol and phenol in it were measured to be 0.81 μg / g and 1.34 μg / g respectively, and other phenolic compounds were not Check out.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for measuring main phenolic compounds in electronic cigarette liquid. The method comprises the steps of preparing a sample solution to be measured by an ultrasonic extracting method, preparing a mixed standard working solution with give concentration gradients, analyzing the solution by a high-efficient liquid-phase chromatography and a fluorescent detector, and quantizing by an external standard method. The result shows that the method is simple in preprocessing, simple to operate, short in analysis time, high in sensitivity, good in recovery rate and precision and suitable for measurement on the content of phenolic compounds in the electronic cigarette liquid.

Description

technical field [0001] The invention relates to the technical field of physical and chemical testing of electronic cigarette products, in particular to a method for determining main phenolic compounds in electronic cigarette liquid. Background technique [0002] In recent years, the topic of smoking and health has been widely concerned by people, and smoking is harmful to health has been generally recognized by people. In 2005, China signed the "Framework Convention on Tobacco Control", which provided a legal basis for tobacco control. In 2012, the Chinese government issued the "China Tobacco Control Plan (2012-2015)", proposing to create a smoke-free environment and implement a comprehensive ban on smoking in public places. Electronic cigarettes (e-cigarettes), also known as electronic nicotine delivery systems (ENDS), are a new form of nicotine intake that looks similar to cigarettes. Over the years, e-cigarettes have used "health care", "quit smoking" and "cleaning the l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N30/02
Inventor 韩书磊陈欢刘彤吴帅宾侯宏卫胡清源
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com