SPI-Pore™ Silver Membrane Media
Some special comments directed to SEM applications
The silver membrane filter, after the particulates to be examined have been collected, and if from a liquid,
allowed to dry, has to be mounted on an SEM mount. We would recommend against using silver paint, because
the liquid, by capillary action, would "wick" up into the membrane, possibly changing some of the collected
particulates or at the very least, confusing the observation of the particulates by contaminating the collected
particulates with silver colloid.
Instead we would recommend using the
SPI Supplies brand double sided conductive adhesive tape or the
SPI Supplies brand double sided conductive adhesive carbon discs.
Asymmetric membranes:
The two sides of the membranes are not the same. One side is clearly "shinny" and the other has a more "dull"
appearance. And the two sides have definitely different surface properties. For applications in SEM, we believe
that most users will get better results using the shinny side. But for x-ray diffraction and other
applications, the dull side is generally preferred.
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