## Physical Principles and Techniques of Protein Chemistry, Part 2 |

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Page 238

to regard spectra of

meaningless . The usual aim of studying the infrared spectra of anisotropic

samples is to determine the principal absorption coefficients and to relate these

to the ...

to regard spectra of

**oriented**specimens measured with unpolarized light asmeaningless . The usual aim of studying the infrared spectra of anisotropic

samples is to determine the principal absorption coefficients and to relate these

to the ...

Page 247

Perhaps the simplest method is to suppose that a fraction g of the crystallites is

perfectly aligned and a fraction ( 1 – g ) randomly

dichroic ratio for perfect

is given ...

Perhaps the simplest method is to suppose that a fraction g of the crystallites is

perfectly aligned and a fraction ( 1 – g ) randomly

**oriented**. In terms of thedichroic ratio for perfect

**orientation**( R . ) and g , the observed dichroic ratio ( R )is given ...

Page 249

1.0 o Dichroism 7 Dichroism 0.9 10 0.8 9 0.7 8 0.6 0.5 0.4 0.3 0.2 3 0.1 2 1.0 0.5

1.0 0.5 Minimum fraction of

chains Fig . 16. The relation between dichroic ratio and the minimum value of ...

1.0 o Dichroism 7 Dichroism 0.9 10 0.8 9 0.7 8 0.6 0.5 0.4 0.3 0.2 3 0.1 2 1.0 0.5

1.0 0.5 Minimum fraction of

**oriented**chains ( a ) ( b ) Minimum fraction of**oriented**chains Fig . 16. The relation between dichroic ratio and the minimum value of ...

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### Contents

Ultracentrifugal Analysis J H Coates | 1 |

Glossary of Symbols | 2 |

Introduction | 3 |

Copyright | |

36 other sections not shown

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### Common terms and phrases

absorption acid analysis angle appear applied average band beam binding bond bound calculated cell changes charge Chem chemical shifts coefficient coil complex component concentration constant correction density dependence described determined direction discussed effect equation equilibrium error et al example experiments factor field frequency fringe function give given gradient groups important increase intensity interaction length light light scattering limit macromolecule magnetic means measured method molecular weight molecule observed obtained occur optical oriented particle peak Phys plot Polymer position possible present protein protons range ratio recording reference region relatively relaxation residues resonance rotation sample scattering sedimentation shape showed shown slit solution solvent specific spectra spectrum speed structure studies technique temperature Timasheff tion transition unit usually values various viscosity volume zero