sedimentation equilibrium

• 沈降平衡

WordNet

1. a stable situation in which forces cancel one another
2. a sensory system located in structures of the inner ear that registers the orientation of the head (同)labyrinthine sense, vestibular sense, sense of balance, sense_of_equilibrium

PrepTutorEJDIC

1. (力・勢力・作用などの)釣り合い,均衡;(心の)平静
2. 沈殿,堆積;沈殿(堆積)作用

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/07/26 18:39:41」(JST)

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Sedimentation equilibrium in a solution or suspension of different particles, such as molecules, exists when the rate of transport of each material in any one direction due to sedimentation equals the rate of transport in the opposite direction due to diffusion. Sedimentation is due to an external force, such as gravity (for very large particles) or centrifugal force in a centrifuge.

Modern applications use the analytical ultracentrifuge. The theoretical basis for the measurements is developed from the Mason-Weaver equation. The advantage of using analytical sedimentation equilibrium analysis for Molecular Weight of proteins and their interacting mixtures is the avoidance of need for derivation of a frictional coefficient, otherwise required for interpretation of dynamic sedimentation.

It was discovered for large particles by Jean Baptiste Perrin for which he received the Nobel Prize in Physics in 1926.

Application in determining molecular mass

Sedimentation equilibrium can be used to determine molecular mass. It forms the basis for an analytical ultracentrifugation method for measuring molecular masses, such as those of proteins, in solution.

External links

• [1]
• Reversible Associations in Structural and Molecular Biology

UpToDate Contents

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English Journal

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Japanese Journal

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• 電力中央研究所報告. 研究報告. 電力中央研究所地球工学研究所 編 (15005), 巻頭1-3,1-28, 2015-11
• NAID 40020661896

• Solvent Dependent Conformation of a Regioselective Amylose Carbamate. Amylose-2-acetyl-3,6-bis(phenylcarbamate)

• Biopolymers 97(12), 1010-1017, 2012-09
• NAID 120005651114

• 〔報 文〕シイタケ子実体のスーパーオキシドジスムターゼの精製と諸性質

• 學苑 854, 1-9, 2011-12-01
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Related Links

• Sedimentation equilibrium - Wikipedia, the free encyclopedia

Sedimentation equilibrium in a solution or suspension of different particles, such as molecules, exists when the rate of transport of each material in any one direction due to sedimentation equals the rate of transport in the opposite direction due ...

• ライフサイエンス分野 分析用超遠心システムとは / ベックマン・コールター

沈降速度法Sedimentation Velocityと沈降平衡法Sedimentation Equilibriumです。 沈降速度法では沈降係数(s)や拡散係数(D)が得られ、沈降平衡法では分子量(M)が得 られます。分子量は測定溶媒中での溶質の状態を反映するもので、その溶質自身の会 ...

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★リンクテーブル★

リンク元	「沈降平衡」
関連記事	「equilibrium」「sedimentation」

「沈降平衡」

　　[★]

英

sedimentation equilibrium

「equilibrium」

　　[★]

• n.

• 平衡、平衡状態、平衡感覚

関

balance、balanced、equilibrated、equilibration、equilibria、equilibrium state

　 　 　

「sedimentation」

　　[★]

• n.

• 沈降、沈積、堆積。沈降分離、沈殿法

関

centrifugation、precipitate、precipitation、sediment