Conceptid (2) | Preflabel |
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NTCOKGOA | Concentration of total nitrogen {total_N} per unit mass of the water body [dissolved plus reactive particulate phase] by oxidation and colorimetric autoanalysis |
NTCOKGTX | Concentration of total nitrogen {total_N} per unit mass of the water body [dissolved plus reactive particulate phase] by high temperature Pt catalytic oxidation |