Nuclear magnetic resonance, electron spin resonance, or other spin effects or mass spectrometry:
(under the class definition) Processes including the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects and mass spectrometry.
(1) Note. Recitation of the specific chemical formula of a compound utilized for spin labeling, as a shift reagent or as a solvent in a process claim is considered to be "significant chemistry" classifiable here as compared to Class 324.
SEE OR SEARCH CLASS
73, Measuring and Testing,
23.35+, for the combination of a gas chromatograph and a nominally recited mass spectrometer.
250, Radiant Energy,
281+, for processes which include use of a mass spectrometer or calutron or a method of separating or accumulating ions based upon the charge to mass ratio.
