. . . . . . . . . . . . . . . . . "Mass spectrometry on combusted sample (centrifuged)"@en . . "PONd15N>unknown" . . . . . . "Enrichment of nitrogen-15 in total nitrogen {15N_in_total_N CAS 14390-96-6} {delta(15)N} in the water body [particulate >unknown phase] by centrifugation, combustion and mass spectrometry"@en . . "accepted"@en . . "SDN:P01::D15NMTPC" . . . . . . .