Method for measuring ammonia content in cigarette smoke through ion chromatography
An ion chromatography and cigarette smoke technology, which is applied in the field of using ion chromatography to determine the ammonia content in cigarette smoke, can solve the problems of complicated operation, unstable liquid to be tested, failure to solve the stability of the liquid to be tested of ammonia, etc. Practicality, the effect of improving stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0024] Commercially available cigarette A was equilibrated at (22±1)°C and relative humidity (60±3)% for 48 hours, then the length of the butt of the smoked cigarette was determined and marked, and 4 cigarettes were smoked.
[0025] The Cambridge filter was used to trap the total particulate matter in the mainstream smoke, and the ammonia in the gas phase was collected in a trap bottle filled with 20 ml of deionized water trapping solution.
[0026] Put the filter piece that has captured the mainstream smoke of 4 cigarettes into a 100mL conical flask, add 20mL of the extract, the concentration of formaldehyde in the extract is 3mmol / L, and the concentration of hydrochloric acid is 100mmol / L, and then put the conical flask into Oscillate for 40 minutes on a speed-regulating oscillator, and the frequency of the oscillator is set at 160r / min. Accurately pipette 5mL of the above-mentioned particle phase extract and gas phase trap into a 25mL volumetric flask, use the extract to ma...
Embodiment 2
[0041] Two kinds of flue-cured cigarettes B and C and one mixed type cigarette D were equilibrated for 48 hours at (22±1)°C and relative humidity (60±3)%, and then the length of the butt of the smoked cigarette was determined and marked. Smoking 4 cigarettes.
[0042] The Cambridge filter was used to trap the total particulate matter in the mainstream smoke, and the ammonia in the gas phase was collected in a trap bottle filled with 20 ml of 5 mmol / L strong acid trapping solution.
[0043] Accurately pipette 20ml of sulfuric acid mixture containing formaldehyde and acetaldehyde (the molar concentrations of formaldehyde, acetaldehyde and sulfuric acid are 1mmol / L, 1mmol / L, and 50mmol / L respectively) to extract the Cambridge filter, ultrasonically extract for 40min, and combine 5ml The gas-phase absorption solution and 5ml particle-phase extraction solution are fixed to 25ml with a mixed solution of formaldehyde and acetaldehyde (the molar concentrations of formaldehyde and acet...
Embodiment 3
[0048] Repeat Example 1, the only difference is that the extract is changed to 20mL concentration of 10% formaldehyde solution.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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