Particle Sedimentation in pH-Gradients

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2006
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Lucas, Gordon
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10.1007/2882_013
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Analytical Ultracentrifugation VIII / Wandrey, Christine; Cölfen, Helmut (ed.). - Berlin : Springer, 2006. - (Progress in Colloid and Polymer Science ; 131). - pp. 129-133. - ISBN 978-3-540-29615-7
Abstract
A new method is explored, where charged colloidal particles are sedimented in a pH-gradient, and an application in following the sedimentation velocity behavior of colloidal gold particles with cationic resp. anionic charge in a pH-gradient is described. A procedure to analyze this type of experiment is developed, where the effects of the changing pH and other parameters resulting from a pH-gradient onto sedimentation are considered. This qualitative analysis allows an understanding of charge effects on the sedimentation behavior of colloids in a preformed pH-gradient and suggests ways for future quantitative evaluation of such data towards the determination of particle charge distributions.
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540 Chemistry
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ISO 690CĂ–LFEN, Helmut, Gordon LUCAS, 2006. Particle Sedimentation in pH-Gradients. In: WANDREY, Christine, ed., Helmut CĂ–LFEN, ed.. Analytical Ultracentrifugation VIII. Berlin:Springer, pp. 129-133. ISBN 978-3-540-29615-7. Available under: doi: 10.1007/2882_013
BibTex
@incollection{Colfen2006Parti-40385,
  year={2006},
  doi={10.1007/2882_013},
  title={Particle Sedimentation in pH-Gradients},
  number={131},
  isbn={978-3-540-29615-7},
  publisher={Springer},
  address={Berlin},
  series={Progress in Colloid and Polymer Science},
  booktitle={Analytical Ultracentrifugation VIII},
  pages={129--133},
  editor={Wandrey, Christine and Cölfen, Helmut},
  author={Cölfen, Helmut and Lucas, Gordon}
}
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