Download Nuclear Magnetic Resonance in Biochemistry by Thomas I. James PDF
By Thomas I. James
Read Online or Download Nuclear Magnetic Resonance in Biochemistry PDF
Similar general & reference books
Heidegger and Marcuse: The Catastrophe and Redemption of History
This brief publication contrasts the philosophies of expertise of Heidegger and Marcuse, one in all Heidegger's celebrity students, and relates their paintings to modern expertise reviews. Feenberg units out the historic and theoretical heritage of the talk, then discusses every one philosopher's concept in flip, and ends with an immense research of the results for modern know-how stories.
Die physikalischen und chemischen Grundlagen der Glasfabrikation
Die Wissenschaft yom Glase ist infolge der Anwendung neuer physi kalischer Auffassungen und Methoden derart in Breite und Tiefe an geschwollen, daB es dem Ingenieur und dem Studenten immer schwie riger wird, die wissenschaftlichen Fundamente zu iibersehen. Es ist Zweck dieses Buches, den Zusammenhang zwischen der Grundlagen forschung einerseits und der Glaschemie und der Technologie anderer seits wieder herzustellen.
A dialogue of categorising the ideational context and emotional adventure that can take place in a psychoanalytic interview. The textual content goals to extend the reader's knowing of cognition and its medical ramifications.
- From Newton to Mandelbrot: A primer in theoretical physics
- Fluorine in Organic Chemistry
- Metals and ligand reactivity : an introduction to the organic chemistry of metal complexes
- Chemistry for Use With International Baccalaureate
Additional resources for Nuclear Magnetic Resonance in Biochemistry
Example text
41 RELAXATION MECHANISMS rotational, translational, or (rarely) vibrational, present in t h e lattice. T h e t e r m " l a t t i c e " refers t o t h e environment surrounding t h e nucleus. I t entails all ions or molecules in t h e sample, including t h e molecule containing t h e nucleus of interest. T h e r a n d o m motions of t h e molecules result in interaction of t h e nuclear spin system with random, fluctuating magnetic and electric fields having Fourier transform components a t t h e requisite frequency to induce transitions between t h e nuclear spin states.
0 0 0 26 2. PRINCIPLES OF NUCLEAR MAGNETIC RESONANCE F I G . 2-7. N a N M R free i n d u c t i o n d e c a y for a s a t u r a t e d a q u e o u s N a C l solution. T h e position of t h e g a t e for monitoring t h e a m p l i t u d e of t h e F I D is illustrated. 2 3 uring Τι or T . T h e pulses are used b o t h as a m e t h o d for perturbing t h e spin system from equilibrium a n d as a m e a n s for detecting t h e magnetization. Because components of 5 ? are detected along t h e y axis, a 90° pulse (0 = π / 2 ) will n u t a t e a n y ζ component M so it will be detected.
T h e rf pulses are too fast to be observed. T m a y easily be calculated from t h e exponential decay of such traces using E q . 2-25. I n addition t o measuring T , t h e 90°-τ-180° a n d Carr-Purcell sequences have also been used t o advantage in measuring rapid chemical exchange rates ( 8 ) , spin-spin coupling ( 9 ) , a n d self-diffusion constants (10, 11). 4. FOURIER TRANSFORM NMR As already mentioned, a free induction decay ( F I D ) is observed following a n intense rf pulse a t t h e resonance frequency.