What are the Common Techniques for Sample Preparation?
There are several techniques used in sample preparation, each tailored for specific types of nanomaterials and subsequent analytical methods:
Sonication: Utilizes ultrasonic waves to disperse nanoparticles uniformly in a solution. Centrifugation: Separates particles based on density by spinning them at high speeds. Filtration: Uses membranes with specific pore sizes to remove unwanted particles from a solution. Drying: Techniques like freeze-drying or oven drying are used to remove solvents from nanomaterials. Electrostatic Deposition: Uses electric fields to deposit nanoparticles onto substrates.
