Particle Mounts on Thin Epoxy Film

Particle mounts in which the particles are attached to a thin film of substrate epoxy on a glass microscope slide are quite useful for repeated examination of the same grain with various refractive-index (RI) liquids and for the application of various stains as in raw feed analysis. An epoxy not soluble in acetone or xylene [Pg.27]

Cover a clean, labeled, glass microscope slide (46x24 mm) with a puddle of epoxy resin plus hardener. [Pg.27]

With the edge of another glass slide, strike off the excess epoxy, leaving only a thin film. [Pg.27]

Sprinkle the mineral grains over the epoxy film, making sure by stereomicroscope or hand-lens examination that only the bottom side of the particles is in contact with the epoxy substrate. Particles ranging from approximately 74 to 149 pm are recommended for this type of preparation. [Pg.27]

Cure the mount on the slide warmer at a temperature no higher than 45°C. [Pg.27]

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