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CENTRIFUGATION, ISOPYCNIC
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DeCS
Descriptor
English
:
Centrifugation, Isopycnic
Descriptor
Spanish
:
Centrifugación Isopicnica
Descriptor
Portuguese
:
Centrifugação Isopicnica
Tree Number:
E05.181.724.336.253
E05.196.941.336.253
Definition
English
:
A technique used to separate
particles
according to their densities in a continuous density
gradient
. The sample is usually mixed with a solution of known
gradient
materials
and subjected to
centrifugation
. Each particle
sediments
to the position at which the
gradient
density is equal to its own. The range of the density
gradient
is usually greater than that of the sample
particles
. It is used in purifying biological
materials
such as
proteins
,
nucleic acids
,
organelles
, and cell types.
History Note
English
:
91(75); was see under CENTRIFUGATION, DENSITY GRADIENT 1975-90
Allowable Qualifiers
English
:
classification
economics
ethics
history
instrumentation
methods
statistics & numerical data
standards
trends
utilization
veterinary
Record Number:
2535
Unique Identifier:
D002500
Occurrence in VHL
:
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