Solid-liquid extraction as a preconcentration technique in trace element analysis Extraction of trace impurities from metal chlorides.
Faculty of Engineering, Nagoya University, Chikusa-ku, Nagoya, Japan.
- Published Article
- Publication Date
Apr 01, 1972
Microgram quantities of iron, cobalt, copper, zinc and cadmium are extracted with various aqueous, organic and mixed solvents from chlorides of sodium, potassium, nickel, cadmium, barium and lead prepared by evaporation of aqueous sample solutions. An ultrasonic field accelerates the extraction, and satisfactory trace recoveries and separation factors are achieved in several systems within a reasonable time. The application to a polarographic determination and a two-stage separation technique are also described.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/18961081