Nuclear magnetic resonance spectroscopy (NMR)


  • Solids and liquids
  • Natural and synthetic polymers, monomers and low-molecular organic substances, fibers, films, composites
  • Needed amount: 10 mg - 500 mg



  • High resolution Fourier transform NMR spectrometer Unity INOVA 500 NB (Varian) for liquid state analysis
    • Probe | {1H-19F } / {15N-31P} 5 mm Switchable Probe
    • Frequency ranges | 500 - 470 MHz / 51 - 202 MHz
    •  Nuclei | 1H, 2H, 13C, 15N, 17O, 19F, 23Na, 29Si, 31P
  • High resolution Fourier transform NMR spectrometer Unity INOVA 400 WB (Varian) for solid state analysis
    • Probe | 1H / {2H-31P} 5 mm CP/MAS Probe (up to 12 kHz sample spinning frequency)
    • Frequency ranges | 400 MHz / 61 - 162 MHz
    • Nuclei | 1H, 2H, 13C, 19F, 23Na, 27Al, 29Si, 31P


Evaluation methods and targets

  • Measurement of one- (on solids and fluids) and two-dimensional (on fluids) NMR spectra of several nuclei with diverse pulse programs
    • Determination of chemical shifts, coupling constants, line intensities, line width and line shapes
    • Determination of homo- and heteronuclear couplings
    • Determination of transversal and longitudinal relaxation time T1 and T2
  • Identification and determination of the chemical structure of organic compounds
  • Characterization of natural polymers (e.g. cellulose, starch, lignin, derivatives) for their molecular and supermolecular structure



  • Determination of composition and chain microstructure of synthetic polymers and copolymers
  • Characterization of composite materials
  • Identification and quantification of cellulose modifications (see PDF)
  • Determination of copolymer statistics (e.g. in poly-L-lactide-polyglycolide-copolymers) (see PDF)
  • Determination of degree of substitution and distribution of substituents (e.g. of polysaccharide derivatives)
  • Determination of the residual monomer content (e.g. in polylactide)
  • Quality control