Sieving or screening is a method of separating a mixture or grains or particles into 2 or more size fractions, the oversized materials are trapped above the screen, while undersized materials can pass ...

CROSS-LINKED dextran (‘Sephadex’) has been shown to possess properties of a molecular sieve 1. The size limits for effective molecular sieving depend on the degree of cross-linking. Molecules or ions ...

Without a sieve or a mill, pharmaceutical tablet manufacture is almost impossible. These are required whenever active and inactive materials are handled, when tablets or other products are made.

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