Ammonia quantitative analysis model based on miniaturized Al ionization gas sensor and non-linear bistable dynamic...

Area of Science:

• Analytical Chemistry
• Materials Science
• Chemical Engineering

Background:

• Accurate ammonia detection is crucial for environmental monitoring and industrial safety.
• Existing gas sensors often face challenges with sensitivity and quantitative analysis.
• Miniaturized sensors offer potential for portable and cost-effective ammonia monitoring solutions.

Purpose of the Study:

• To propose and validate a novel method for quantitative ammonia analysis.
• To integrate a miniaturized aluminum ionization gas sensor with a non-linear bistable dynamic model.
• To demonstrate the effectiveness of the combined approach for precise ammonia concentration determination.

Main Methods:

• Utilized a miniaturized aluminum (Al) plate anodic gas-ionization sensor to capture current-voltage (I-V) data.
• Employed a non-linear bistable dynamic model for processing the sensor's measurement data.
• Correlated processed data with known ammonia concentrations to establish a quantitative relationship.

Main Results:

• The developed method successfully achieved quantitative analysis of ammonia.
• The combination of the Al ionization sensor and the dynamic model provided reliable ammonia concentration data.
• The system demonstrated efficacy in determining varying ammonia levels.

Conclusions:

• The proposed approach offers a viable and effective solution for quantitative ammonia sensing.
• Miniaturized Al ionization sensors coupled with advanced dynamic models show significant promise for gas analysis.
• This work contributes to the development of improved technologies for environmental gas monitoring.