Encyclopedia of industrial chemical analysis

Encyclopedia of industrial chemical analysis

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The following procedure is described in ASTM Method D 276-62T (3). Procedure A suggested density gradient tube consists of a glass tube approximately 1 in. in diameter and 18 in. in length, with a sealed ... groups, deiagt;ending upon whether they float or sink in liquids of known density similar to those used in making the gradient column. ... Agitate the fibers in the residual xylene and transfer the fibers (a dropping pipet is convenient) onto the toiagt; layer of a prepared density column.

Title:Encyclopedia of industrial chemical analysis
Author:Foster Dee Snell, Clifford L. Hilton, Leslie S. Ettre
Publisher: - 1967


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