Centrifugation Method
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United States of America Patent
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Issued Date -
Nov 17, 2011
app pub date -
May 12, 2011
filing date -
May 13, 2010
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Abandoned
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Abstract
A centrifugation method for separating a high specific gravity substance and a low specific gravity substance from a mixture thereof, which prevents the contamination of the high specific gravity substance in collecting the low specific gravity substance after a separation operation, is provided. The centrifugation method includes centrifuging a mixture comprising a high specific gravity substance, a low specific gravity substance, and at least one of a thermoreversible gel and a dissolved gelling agent capable of forming a thermoreversible gel, in which the thermoreversible gel or the dissolved gelling agent forms a gel layer which separates the low specific gravity substance and the high specific gravity substance. The centrifugation is preferably carried out at a temperature equal to or lower than the gelation temperature of the gelling agent.
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