103
edits
Changes
From Pumping Station One
→Terminology
== Terminology ==
== Terminology ==
* NMR - Nuclear magnetic resonance
* NMR - Nuclear magnetic resonance
* Probe - The detector of an NMR. Most commonly, this is Hydrogen-1, but probes for other isotopes exist. The probe is ultimately just a coil, but it is tuned to the element of interest. There are "wideband" probes that can be tuned to various isotopes as long as they are NMR active.
* Proton NMR - What they really mean is NMR performed with a Hydrogen-1 probe.
* Probe - The detector of an NMR. Most commonly, this is Hydrogen-1, but probes for other elements exist. The probe is ultimately just a coil, but it is tuned to the element of interest.
* C-13 NMR - NMR performed with a Carbon-13 probe.
* TMS - Tetramethylsilane Si(CH3)4 - A colorless liquid commonly used as a reference standard. The peak of TMS is used to set a reference of where zero is.
* PPM - The unit "chemical shift" is measured in when looking at NMR spectra (x-axis). This corresponds to the shift from the reference frequency from 0ppm.
* PPM - The unit "chemical shift" is measured in when looking at NMR spectra (x-axis). This corresponds to the shift from the reference frequency from 0ppm.
* Upfield / Shielded / Lower Energy - Peaks occurring closer to 0ppm (near the right side of x-axis).
* Upfield / Shielded / Lower Energy - Peaks occurring closer to 0ppm (near the right side of x-axis).
