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Transient distributions arising from initially sharp boundaries in the ultracentrifuge
Author(s) -
Charlwood P. A.
Publication year - 1967
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1967.360050707
Subject(s) - chemistry , computation , series (stratigraphy) , boundary (topology) , transient (computer programming) , range (aeronautics) , meniscus , thermodynamics , boundary value problem , ultracentrifuge , mechanics , mathematical analysis , geometry , chromatography , physics , algorithm , mathematics , materials science , paleontology , incidence (geometry) , computer science , composite material , biology , operating system
An infinite series solution to the Mason‐Weaver equation is presented for the case in which a synthetic boundary is formed originally between solution and solvent. Digital computations based on this series, and confirmed independently, have been made for a range of parameters. For given conditions, the maximum rate of change of concentration at the meniscus and the time at which it occurs can be easily estimated by means of the curves presented. In equilibrium experiments which commence with formation of a sharp boundary, this enables the fringes to be identified with certainty.