title: A simple procedure for mass spectrometric microanalysis of 15N in particulate organic matter with special reference to 15N-tracer experiments.
mesh_terms: D000818:Animals; D056890:Eukaryota / Q000032:analysis; D007553:Isotope Labeling / Q000379:methods*; D013058:Mass Spectrometry / Q000295:instrumentation / Q000379:methods; D008832:Microchemistry; D009587:Nitrogen Isotopes
chemical_list: D009587:Nitrogen Isotopes