Periodic Table of Isotopes: Potassium

NMR Observation Frequencies

NMR observation frequencies in MHz for each magnetic field value found in NMR magnets at the MagLab.

Potassium MHz 200 300 400 500 600 720 750 830 900 1065 41K 5.12 7.68 10.2 12.8 15.4 18.4 19.2 21.3 23.1 27.25 39K 9.33 14 18.7 23.3 28 33.6 35 38.7 42 49.65 Tesla 4.70 7.05 9.40 11.7 14.1 16.9 17.6 19.6 21.2 25.0

Other Properties

	Spin	Gamma (rad/T)	Abundance (%)	Sensitivity	Absolute sensitivity	Chemical shift (ppm)
41K	3/2	6.852e6	6.88	8.4e-5	5.78e-6
39K	3/2	1.248e7	93.1	0.000508	0.000473