New NMR spectrometer goes into routine operation (Kopie 1)

The figure shows measurements of the same sample on the two 600 mHz spectrometers. The top row shows measurements with 1, 4, 16, 64 and 256 pulses on the old 600 MHz spectrometer. The signal-to-noise ratio improves as the number of pulses increases.

The bottom row shows the corresponding measurements with the new spectrometer (600 MHz evo neo). The measurement with only one pulse has a better signal-to-noise ratio than the measurement with 4 pulses on the old device. The signal-to-noise ratio for one pulse on the new device is somewhere between 4 and 16 pulses on the old device.

Similarly, 4 pulses on the new device correspond to 16 to 64 pulses on the old device. As the measurement time increases linearly with the number of pulses, this is a significant advance for dilute samples.

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