Soft Report - Dipartimento di Fisica - Sapienza

NMR Laboratory – UdR RomaSingle-sided NMR device. The mq-Profiler (BrukerBiospin, Italy) is an in situ compact NMR relaxometer,equipped with single-sided magnet and interchangeableRF coils for performing 1 H-NMR experiments within 1 cmbelow the surface of arbitrarily shaped samples. Theportable broadbanded electronics unit (weight ~ 10 Kg)to which the probe is connected is based on Bruker’sminispec mq-BB console. The magnet assembly of themq-ProFiler is all included in a volume of about 5 x 5 x10 cm3 and consists of two permanent magnets ofrectangular section, placed in an antiparallelconfiguration and fixed to an iron yoke, which generatea static polarization field (~ 0.4 T). The interchangeableRF coil (Larmor frequency of about 18 MHz) are placedin the space between the magnets and produce theresonant condition at different fixed distances from thesurface of the magnet. Due to the open geometry of thesingle-sided apparatus, strong magnetic field gradients(~ 10 T/m) are present.High Resolution NMR Spectrometer. NMR 300MHz Ultra Shield Bruker spectrometer (probes:cryo, 1 H, BBO). Equipped with a BGU2 gradient unit(max gradient intensity 1200 Gauss/cm). Suitablefor high-resolution spectroscopy on various nuclei( 1 H, 2 H, 17 O, 13 C), molecular motion studies in awide diffusive range (10 -9 – 10 -14 m 2 /s) andstructural analysis (i.e. porous media)27SOFT Scientific Report 2004-06