SPI Nylon® Grids for TEM
Comparison with standard 200 mesh copper grid
Many would-be users of the SPI Nylon grids wonder, in advance, just how
similar might such a grid be a much more familiar 200 mesh copper grid. In
order to put such anxieties and concerns to rest, in our own laboratories,
we have photographed side by side the two grids, as shown below:
We find that when the SPI Nylon grids are carbon coated, they tend to behave
quite similarly to copper grids. However, the special nylon used for the
manufacturing of the mesh contains titanium dioxide, therefore, anyone using
these grids should expect to find some peaks from titanium. In that respect,
they are inferior to the
SPI Supplies beryllium grids or the
SPI diamond grids.
But they do have the advantage that they are much cheaper. Therefore they
make excellent grids for students for use in teaching situations.
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Friday August 08, 2008
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