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KBr Pellet Holder

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Recently, this Laboratory had reason to scan some KBr pellets, produced in a Beckman Die, using a Model 14 Cary Recording Spectrophotometer. The problem of mounting the pellets in the instrument beam led to the design and fabrication of two brass holders according to the plans shown in Figure 1. When mounted in the instrument with the cell holders at the approximate center of the sample chamber, the pellet holder will pass the full beam of the instrument. Two pellet holders are used with one containing the sample pellet in the sample beam and the other a blank KBr pellet in the reference beam. Figure 2 shows a holder mounted in the sample chamber of the instrument.

Document Type: Research Article


Affiliations: Southern Regional Research Laboratory, U. S. Department of Agriculture, New Orleans, La.

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