Polystyrene Latex Particles
This range of polystyrene particles is excellent for SEM calibration purposes.
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This range of polystyrene particles is excellent for SEM calibration purposes. It is possible to derive an internal standard of size by mixing a suitable concentration of these particles with the particles of unknown size being studied. The wide range of particle sizes available is listed below, with the standard deviation and approximate particle concentration. These values may be subject to variation between different batches.
Although these standard deviations are very small, the suspension may contain some particles of material with different diameters from the mean. A statistically significant number of latex particles should be included in any micrograph where a size comparison is to be attempted. It is important not to subject these spheres to excessive irradiation. All solutions are approximately 0.1% weight by volume, packed in vials of 5ml.
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