title: Quantitative determination of total organic nitrogen and isotope enrichment in marine phytoplankton.
mesh_terms: D001322:Autoanalysis; D005069:Evaluation Studies as Topic; D006358:Hot Temperature; D007553:Isotope Labeling; D008365:Manometry; D013058:Mass Spectrometry; D008433:Mathematics; D008722:Methods; D009584:Nitrogen / Q000032:analysis*; D009587:Nitrogen Isotopes; D010839:Phytoplankton / Q000032:analysis*; D010933:Plankton / Q000032:analysis*; D012623:Seawater; D013696:Temperature
chemical_list: D009587:Nitrogen Isotopes; D009584:Nitrogen