An automatic system for solvent extractions of trace chemicals from aqueous samples is described. The system has been applied to the determination of traces of non-ionic detergent in sewage effluents and river waters. The method has been assessed by measuring the non-ionic detergent remaining in the sample by the manual method after automatic extraction.
R. Sawyer, P. B. Stockwell and K. B. E. Tucker, Analyst, 1970, 95, 284 DOI: 10.1039/AN9709500284
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