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Each macro-ATR crystal has a facet (or flat spot) that comes into contact with the sample. We routinely use crystals with a facet size of 250 μm or 100 μm, but also have a 1 mm facet available that is suitable for soft samples only. The average maximum area that can be used for measurement acquisition on each of the crystal facet sizes are shown below. NOTENote: This is only a guide, the working area can change slightly depending on the crystal. |
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