Determination of some trace metal impurities in refined and unrefined salts after preconcentration onto activated carbon

Soylak M., elçi l., doğan m.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.5, pp.148-155, 1996 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 5
  • Publication Date: 1996
  • Journal Name: FRESENIUS ENVIRONMENTAL BULLETIN
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Agricultural & Environmental Science Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, Environment Index, Geobase, Greenfile, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.148-155
  • Keywords: refined and unrefined salts, activated carbon, FAAS, trace metal, ATOMIC-ABSORPTION SPECTROMETRY, SPECTROPHOTOMETRIC DETERMINATION, SOLVENT-EXTRACTION, SEPARATION, BISMUTH, COPPER, WATER
  • Erciyes University Affiliated: Yes

Abstract

A simple separation-preconcentration procedure for the determination of trace metals in refined and unrefined salts is proposed. Metal ions are complexed by ammonium pyrrolidine dithiocarbamate (APDC) and sorbed onto activated carbon. Concentration of metal ions were determined by flame atomic absorption spectrometry. The method was applied successfully to the determinations of trace amounts of Cu, Ni,Pb, Fe, Cd, Zn,Co in refined and unrefined salt samples (Recoveries >95%, relative standard deviations < 6 %, relative error < 4%).