Focus on special particles - analysis of transparent, bright particles

Knowledge

In critical areas of high-performance technology or medical technology, all particles, including transparent or bright particles, are often relevant. Bright or transparent organic particles cannot be detected in an light-optical microscope, organic particles cannot be distinguished from the organic filter material in a scanning electron microscope, scattered light methods are currently in use, but use approximations and are not imaging methods.

 

The solution: extraction on metal vaporized analytical filters!

Metal vaporized filters offer a number of unique advantages that are not available with conventional filters. Scanning electron microscopy provides material contrast to all organic particles.

For light-optical microscopy and FTIR spectroscopy, optical methods can be used to obtain a better contrast to particles. In FTIR in particular, the surface of the metal filter enables reflection measurements which, in contrast to the ATR technique, can be automated, allowing organic particles to be measured cost-effectively.

Further information can be found here.

 

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lght microscope image of transparent particles

gold vaporized analysis filter