A Microfabricated Probe with Integrated Coils and Channels for on-Chip NMR Spectroscopy

We present the development of a monolithic NMR probe fabricated on a glass substrate, combining an integrated high-quality factor, multi-turn planar coil with a microfluidic network. Concentrations of a few percent ethanol in water can be detected by 1H NMR in a 30-nL volume with only 3 scans.