Moisture content is a critical factor that affects the quality and shelf life of various materials. Among the numerous moisture content determination methods, the Infrared Absorption Method is an official and widely used technique for its accuracy, efficiency, and ease of use.

Principle

The Infrared Absorption Method utilizes the principle of infrared absorption spectroscopy to determine moisture content. When infrared radiation is emitted onto a sample, certain wavelengths are absorbed by the water molecules present in the sample. The amount of absorption is directly proportional to the moisture content.

Procedure

• A representative sample is prepared and placed in a sample cell.
• Infrared radiation is passed through the sample cell.
• The absorption of infrared radiation at specific wavelengths is measured.
• The moisture content is calculated based on the measured absorption values and pre-established calibration curves.

Advantages

• Rapid and Efficient: The Infrared Absorption Method provides quick and accurate moisture content results, making it suitable for high-throughput applications.
• Non-Destructive: The method does not damage or alter the sample, allowing for multiple measurements on the same sample.
• Versatile: The Infrared Absorption Method can be used to determine moisture content in various materials, including solids, liquids, and gases.

Conclusion

The Infrared Absorption Method is a reliable and versatile technique for accurately determining moisture content. Its efficiency and non-destructive nature make it a valuable tool for quality control, product development, and research.