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Sequential diffusion of ammonium and nitrate from soil extracts to a polytetrafluoroethylene trap for 15N determination

Environmental ChemistryEngineeringSoil ExtractsEnvironmental EngineeringEnvironmental Analytical ChemistrySoil PollutionSoil ChemistrySoil ContaminationAnalytical ChemistryAmmoniaPolytetrafluoroethylene TrapSequential Diffusion