Conceptid (2) | Preflabel |
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NTOTCNPC | Concentration of total nitrogen {total_N} {PON} per unit volume of the water body [particulate >unknown phase] by centrifugation and elemental analysis |
NTOTCNPZ | Concentration of total nitrogen {total_N} {PON} per unit volume of the water body [particulate >unknown phase] by filtration and elemental analysis |