60 Hz, or 0.1 ppm on a 600 MHz NMR instrument, may be a good value. 30 Hz may be indistinguishable from 60 Hz. Please note that the ratio of sw2/sw1 must be an integer to avoid artifacts. If the ratio ...

Nuclear Magnetic Resonance (NMR) was first experimentally observed in late 1945, nearly simultaneously by the research groups of Felix Bloch, at Stanford University and Edward Purcell at Harvard ...

The next studies are already underway, now on even older wooden artifacts from Neolithic inhabitants up to 7,500 years old in Italy's Lake Bracciano. In recent years, NMR techniques have become ...

The Bruker HelioSmart Recovery system has been carefully engineered to guarantee safe operation with NMR magnets and has been optimized to eliminate spectral artifacts. The HelioSmart Recovery is ...

The current GeoSpec range functions at an NMR frequency of 2 MHz, to imitate the downhole tools and also to reduce measurement artifacts caused by the paramagnetic material usually found in sandstones ...

While 2D NMR is frequently employed to enhance the resolution over 1D experiments, this can negatively affect the S/N and signal-to-artifact ratios. As demonstrated in heteronuclear decoupling ...

These instruments work at 2 MHz to reduce artifacts caused by ferromagnetic material in the samples and to imitate the operation of the NMR logging tools. All 2 MHz GeoSpec models are fitted with ...