Elutriation is a process for separating particles based on their size, shape and density, using a stream of gas or liquid flowing in a direction usually opposite to the direction of sedimentation. This method is mainly used for particles smaller than 1 μm. The smaller or lighter particles rise to the top (overflow) because their terminal sediment...
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http://en.wikipedia.org/wiki/Elutriation
• (n.) The process of elutriating; a decanting or racking off by means of water, as finer particles from heavier.
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http://thinkexist.com/dictionary/meaning/elutriation/
(from the article `separation and purification`) In this method, the particles are placed in a vertical tube in which water (or another fluid) is flowing slowly upward. The particles fall through ...
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http://www.britannica.com/eb/a-z/e/24
<ecology> Separation of particles on the basis of their differential sedimentation rate. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973
(e-loo″tre-a´shәn) purification of a substance by dissolving it in a solvent and pouring off the solution, thus separating it from the undissolved foreign material.
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http://www.encyclo.co.uk/local/21001
Separation of particles on the basis of their differential sedimentation rate.
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http://www.encyclo.co.uk/visitor-contributions.php
E·lu`tri·a'tion noun The process of elutriating; a decanting or racking off by means of water, as finer particles from heavier.
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http://www.encyclo.co.uk/webster/E/23
Type: Term Pronunciation: ē-lū′trē-ā′shŭn Synonyms: elution
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http://www.medilexicon.com/medicaldictionary.php?t=28461
Elutriation is the process of separating the finer particles of an earthy substance from the coarser and heavier by washing with water.
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http://www.probertencyclopaedia.com/browse/GE.HTM
The separation of particles according to their size or specific gravity by a controlled velocity water stream. The basis of a method for the determination of the fineness of a material.
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https://walkerceramics.com.au/resources/glossary-of-ceramic-terms/
The process by which a granular material can be sorted into its constituent particle sizes by means of a moving stream of fluid (usually air or water). Elutriators are extensively used in studies of sediments for determining PARTICLE SIZE distribution. Under certain circumstances wind, rivers and streams may act as natural elutriating agents.
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https://www.encyclo.co.uk/local/20127
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