3. 1 Chemical shift When an atom is placed in a magnetic field B its electrons circulate about the direction of the applied magnetic field. This circulation causes a small magnetic field at the nucleus which opposes the externally applied field The magnetic field at the nucleus(the effective field) is therefore generally less than the applied field by a fraction THNMR
A remarkab|efie|d e One of the two leading technologies in structural biolog y Great contributions to biology A special window to the development of modern structural biology and biophysics THNMR YAN
Nutritional requirements To live to grow and thrive, humans must take in nutrients from their environment Before birth there are supplied by the mother, but ereafter they must be ingested If too little is provided, the infant will not grow and may become ill, and too much may lead to toxicity or obesity
NMR supplement Kinetic studies of protein folding using NMR spectroscopy Christopher M. Dobson and Peter J Hore Recent progress has advanced our abilities to use NMR spectroscopy to follow- in real time -the structural and dynamic changes taking place during protein folding
2 Basis Principles of FT NMR C Gerd Gemmecker 1999 Nuclei in magnetic fields Atomic nuclei are composed of nucleons, i.e., protons and neutrons. Each of these particles shows a property named\spin\(behaving like an angular momentum) that adds up to the total spin of the
Nutritional requirements To live to grow and thrive, humans must take in nutrients from their environment Before birth there are supplied by the mother, but ereafter they must be ingested If too little is provided, the infant will not grow and may become ill, and too much may lead to toxicity or obesity
INTRODUCTION Objectives Brightness CLeanliness OPurification-dissolving grade Historical background a Major concerns ◇ Costs◇ Environmental◇ Energy South China University of Technology
