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Solid-liquid extraction as a preconcentration technique in trace element analysis Extraction of trace impurities from metal chlorides.

Authors
Type
Published Article
Journal
Talanta
0039-9140
Publisher
Elsevier
Publication Date
Volume
19
Issue
4
Pages
527–537
Identifiers
PMID: 18961081
Source
Medline

Abstract

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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