Various techniques are employed for air sampling in nanotechnology. Common methods include:
- Filtration: Air is passed through a filter that captures nanoparticles. The filter is then analyzed using techniques like electron microscopy. - Impaction: Particles are impacted on a solid surface for subsequent analysis. - Condensation Particle Counters (CPC): These devices count particles by enlarging them through condensation and then detecting them optically. - Diffusion Batteries: These separate particles based on their size through diffusion processes.