Skip to main content
main-content

Über dieses Buch

The second edition of this textbook offers extended information on imaging as well as relaxation. A new chapter has been added to cover hyperpolarisation. As before, Essential NMR is a set of lecture notes for scientists and engineers who want to brush up on their knowledge of NMR. It is also a compendium for graduate and postgraduate students of physics and chemistry as well as for their teachers, covering all fields of NMR, i.e. NMR methodology and hardware, chemical analysis, 2D-spectroscopy, NMR imaging, flow NMR, and quality control NMR.

The material, selected and organized for a one-semester course, is presented in a concise and informative way. Each page addresses a particular topic and holds an illustrative figure as well as explanatory text providing the key information. The book is intended for beginning graduate students and doctoral students of Physics, Chemistry, Chemical Engineering, and Material Science.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Introduction

Abstract
NMR is a physical resonance phenomenon utilized to investigate molecular properties of matter by irradiating atomic nuclei in magnetic fields with radio waves.
Bernhard Blümich

Chapter 2. Basic Principles

Abstract
  • Some magnetic isotopes important to NMR are listed below along with their resonance frequencies ν0 at 1 T field strength, natural abundance, and sensitivity relative to 13C
  • Chemical shift range and reference compound are relevant for chemical analysis by NMR spectroscopy
  • 1H is the most sensitive stable nucleus for NMR and the most abundant nucleus in the universe
Bernhard Blümich

Chapter 3. Spectroscopy

Abstract
  • The magnetic dipole moment μ of a nucleus is proportional to its spin I
  • The dipole moment and the spin are vectors with magnitude and orientation
  • Also, the magnetic field B is a vector quantity
Bernhard Blümich

Chapter 4. Imaging and Transport

Abstract
  • NMR spectroscopy requires magnetic fields sufficiently homogeneous across a typically 5-mm diameter sample tube to resolve differences in the chemical shift of 0.01 ppm = 10-8
  • Magnetic resonance imaging (MRI) does not primarily aim at resolving chemical shift differences
  • The dominating signal in medical MRI results from water, which produces a single resonance line in the 1H NMR spectrum
Bernhard Blümich

Chapter 5. Relaxometry and Laplace NMR

Abstract
  • Relaxation times and diffusion coefficients can be measured in inhomogeneous magnetic fields by analyzing signal decay and build-up in the time domain
  • Inhomogeneous fields are inexpensive to generate with permanent magnets
  • The fields of permanent magnets are low (up to 2 T) compared to those of most superconducting NMR magnets (up to 24 T)
Bernhard Blümich

Chapter 6. Hyperpolarization

Abstract
  • The nuclear polarization is the dipolar longitudinal magnetization
  • It is given by the sum of population differences of energy levels between which transitions can be stimulated by radio-frequency photons
  • Since a photon has spin 1, these energy levels differ in magnetic quantum number m by ⎪Δm ⎪ = 1
Bernhard Blümich

Backmatter

Weitere Informationen

Premium Partner

    Marktübersichten

    Die im Laufe eines Jahres in der „adhäsion“ veröffentlichten Marktübersichten helfen Anwendern verschiedenster Branchen, sich einen gezielten Überblick über Lieferantenangebote zu verschaffen. 

    Bildnachweise