Für die physikalische Charakterisierung von Partikeln bietet Microtrac eine breite Auswahl an optischen Analysengeräten. Microtrac ist weltweit der einzige Anbieter, der Geräte für die dynamische Bildanalyse, Laserbeugung und Siebanalyse im Programm hat und über umfangreiches Know-how im Vergleich der Stärken und Schwächen jedes Verfahrens verfügt.
Particle Size is the fastest way to rule methods in or out. Find your range on the scale. In case two methods overlap, the questions below will help you decide.
Do you need particle shape, not just size?
Only Dynamic Image Analysis (DIA) measures shape and individual particles - the others report a size distribution only.
Do you need to analyze below ~1 µm?
Then Dynamic Light Scattering (DLS), or Laser Diffraction (LD) down to 10 nm. Above ~1 mm, Dynamic Image Analysis (DIA).
Do you need to catch a few oversized grains?
Dynamic Image Analysis (DIA) detects them reliably; laser diffraction and DLS can miss them.
Are you looking to replace sieve analysis?
Dynamic Image Analysis (DIA) reproduces sieve results while removing the manual effort and screen wear.
Siebung, Laserbeugung oder Dynamische Bildanalyse? Messmethoden im Vergleich
| Dynamische Bildanalyse | Siebanalyse (Retsch) |
Laserbeugung | Dynamische Lichtstreuung (DLS) | |
|---|---|---|---|---|
| Wide dynamic measurement range | ++ | + | ++ | + |
| Reproducibility and repeatability | ++ | + | ++ | + |
| High resolution for narrow distributions | ++ | - | + | + |
| Particle shape analysis | + | - | - | - |
| Direct measurement technique | ++ | + | - | - |
| Reliable detection of oversized grains | ++ | ++ | - | + |
| Robust hardware, easy operation for routine analysis | ++ | + | ++ | + |
| Analysis of individual particles | + | - | - | - |
| High measurement speed, short measurement times | ++ | - | ++ | + |
| Analysis of nano particles | - | - | + | ++ |
| Analysis of Zeta potential and molecular weight | - | - | - | ++ |
| Versatility | + | + | ++ | - |
| Measuring range | 0.8 µm - 135 mm | 10 µm - 125 mm | 10 nm – 5 mm | 0.8 nm - 6500 nm |