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Determination of trace amounts of gold in waste water by graphite furnace atomic-absorption spectrophotometry with preconcentration on trioctylphosphine oxide chemically modified tungsten wire matrix

Chemical EngineeringEnvironmental ChemistryWaste WaterTrace AmountsEngineeringNatural SciencesSpectroscopyElemental CharacterizationAnalytical ChemistryChemistrySpectrochemical AnalysisTungsten Wire MatrixTrace Element