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PRECONCENTRATION AND DETERMINATION OF TRACE-ELEMENTS IN FRESH-WATER AND SEA-WATER - COMPARISON OF RESULTS OBTAINED BY DIFFERENT METHODS (X-RAY-FLUORESCENCE, NEUTRON-ACTIVATION AND ATOMIC-ABSORPTION)
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SEPARATION OF TRACE-ELEMENTS ON A CELLULOSE EXCHANGER WITH 1-(2-HYDROXYPHENYLAZO)-2-NAPHTHOL (HYPHAN) AS FUNCTIONAL-GROUP AND SUBSEQUENT DETERMINATION BY X-RAY-FLUORESCENCE ANALYSIS
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SEPARATION AND X-RAY-FLUORESCENCE ANALYSIS OF DISSOLVED URANIUM FROM NATURAL-WATER BY MEANS OF CHELATING CELLULOSE ION-EXCHANGERS (NATURAL-WATER SAMPLES AS EXAMPLE)
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AN EFFICIENT FLOW-INJECTION SYSTEM WITH ONLINE ION-EXCHANGE PRECONCENTRATION FOR THE DETERMINATION OF TRACE AMOUNTS OF HEAVY-METALS BY ATOMIC-ABSORPTION SPECTROMETRY
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SENSITIVITY ENHANCEMENTS FOR FLOW-INJECTION ANALYSIS INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY USING AN ONLINE PRECONCENTRATING ION-EXCHANGE COLUMN
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ANALYTICAL CHEMISTRY,
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