What are the official methods of moisture content determination

Mass Spectrometry (LC), also known as liquid chromatography-mass spectrometry, is an analytical technique commonly employed to identify, quantify, and characterize compounds within complex mixtures. This method combines the separation capabilities of liquid chromatography with the mass analysis capabilities of mass spectrometry.

Official Methods of Moisture Content Determination

Several official methods are recognized for determining moisture content in various materials, including:

1) Karl Fischer Titration

• Utilize a volumetric or coulometric titration technique
• Involves reacting the sample with an iodine-based solution in the presence of a suitable solvent

2) Oven Drying

• Entails heating the sample in an oven at a specific temperature
• Moisture is removed through evaporation, and the weight loss is measured

3) Microwave Drying

• Similar to oven drying, but utilizes microwave radiation to heat the sample
• Faster and more energy-efficient compared to oven drying

4) Infrared Drying

• Employs infrared radiation to heat the sample, causing水分蒸发
• Suitable for materials sensitive to high temperatures

The choice of method depends on the nature of the sample, the required accuracy, and the available resources.