What are the official methods of moisture content determination

Understanding Moisture Content Determination Methods

Fourier Transform Infrared (FTIR) Spectroscopy is a well-established analytical technique employed to determine the moisture content of various materials. It is an accurate, non-destructive method that provides precise information about the molecular composition of a sample.

Official Methods

FTIR Spectroscopy is recognized by several official organizations for moisture content determination, including:

ASTM International (ASTM): ASTM D6384
International Organization for Standardization (ISO): ISO 18893-1

Advantages of FTIR Spectroscopy

FTIR Spectroscopy offers numerous advantages for moisture content determination:

Non-Destructive: Samples remain intact after analysis.
Accurate: Precise results are obtained with minimal measurement errors.
Versatile: Applicable to a wide range of materials, including solids, liquids, and gases.
Rapid: Analysis can be performed quickly, typically within a few minutes.

Principle of Operation

FTIR Spectroscopy relies on the absorption of infrared radiation by water molecules. The infrared spectrum of a sample contains characteristic peaks that correspond to the vibrational modes of water molecules. By analyzing the intensity of these peaks, the moisture content can be quantitatively determined.

Applications

FTIR Spectroscopy is widely used in diverse industries for moisture content determination, such as:

Food and Beverage: Monitoring moisture levels in products to ensure quality and shelf life.
Pharmaceuticals: Determining moisture content in active pharmaceutical ingredients and finished products.
Materials Science: Measuring moisture content in polymers, ceramics, and other materials for quality control and research purposes.

Conclusion

FTIR Spectroscopy is a trusted and versatile method for determining moisture content in various materials. Its accuracy, non-destructive nature, and versatility make it a preferred choice for a wide range of applications.