Physical Principles and Techniques of Protein Chemistry, Part 3Sydney J. Leach |
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Page 260
... pulse followed at some variable time interval later by a 90 ° pulse ( the 180 ° -t - 90 ° method ) . There is no received signal following the 180 ° pulse since the magnetization is then -Mo , i.e. , parallel to the z - axis . The ...
... pulse followed at some variable time interval later by a 90 ° pulse ( the 180 ° -t - 90 ° method ) . There is no received signal following the 180 ° pulse since the magnetization is then -Mo , i.e. , parallel to the z - axis . The ...
Page 270
... pulse and 90 ° pulse conditions respectively . The measurement of the T1 of an unknown sample then follows in a straightforward manner . Using a 180 ° -90 ° pulse sequence , the time in- terval between the two pulses was varied until a ...
... pulse and 90 ° pulse conditions respectively . The measurement of the T1 of an unknown sample then follows in a straightforward manner . Using a 180 ° -90 ° pulse sequence , the time in- terval between the two pulses was varied until a ...
Page 271
... pulse ; the gain of the Y - amplifier has been increased and the time base expanded to provide an effective enlargement of the signal due to the 90 ° pulse as the null condition is approached . the first pulse . For this to be achieved ...
... pulse ; the gain of the Y - amplifier has been increased and the time base expanded to provide an effective enlargement of the signal due to the 90 ° pulse as the null condition is approached . the first pulse . For this to be achieved ...
Contents
Direct Volume Change | 22 |
Density | 32 |
Derivation of the Partial Specific Volume from | 62 |
Copyright | |
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a-helix absorption acid Acta angle axial ratio B-structure Biochem Biochemistry Biol buffer c₂ calculated CD spectra Chem chromophore circular dichroism coefficient conformation constant Cotton effects cross-section curves denaturation determined dialyzate diffusible components dilute electron density ellipsoids ellipticity enzyme equation equilibrium exciton factor function gm/ml grams Guinier helical helix hemocyanin hemoglobin intensity interaction investigated Kratky lysozyme macromolecule magnetic measurements membrane method mg/ml molal molecular weight molecule myoglobin negative nondiffusible obtained optical activity osmometers osmotic pressure parameter partial specific volume particles peptide Phys Pilz plot polymer polypeptides Porod primary beam procedure protein component protein solution radii radius of gyration residues rotational strength sample Schellman Section shape small-angle scattering small-angle X-ray scattering solvent solvent medium spectrum structure studies subsidiary maxima subunits T₁ temperature theoretical scattering curves Tinoco tion transition v₂ wavelength zero