Mitigation of Humidity Interference in Colorimetric Sensing of Gases

Area of Science:

• Analytical Chemistry
• Sensor Technology
• Environmental Science

Background:

• Colorimetric sensing is vital for gas detection, including environmental pollutants and breath biomarkers.
• Humidity significantly impacts the accuracy and reliability of colorimetric gas sensors.
• Existing reviews focus on materials and applications, neglecting humidity interference solutions.

Purpose of the Study:

• To review and analyze humidity interference mechanisms in colorimetric gas sensing.
• To discuss reported approaches for mitigating humidity interference.
• To provide future perspectives for humidity-resilient colorimetric sensing.

Main Methods:

• Analysis of humidity interference mechanisms in colorimetric gas sensors.
• Review of literature on strategies to mitigate humidity effects.
• Discussion of applications in environmental monitoring and breath analysis.

Main Results:

• Humidity interference mechanisms were analyzed.
• Various mitigation strategies for humidity interference were discussed.
• The review highlights the need for humidity-resilient colorimetric sensors.

Conclusions:

• Addressing humidity interference is crucial for real-world deployment of colorimetric gas sensors.
• Further research into humidity mitigation is essential for advancing the technology.
• Future perspectives focus on developing robust and reliable colorimetric sensing solutions.