Solid-phase extraction of Mn(II), Co(II), Ni(II), Cu(II), Cd(II) and Pb(II) ions from environmental samples by flame atomic absorption spectrometry (FAAS).
A new method using a column packed with Amberlite XAD-2010 resin as a solid-phase extractant has been developed for the multi-element preconcentration of Mn(II), Co(II), Ni(II), Cu(II), Cd(II), and Pb(II) ions based on their complex formation with the sodium diethyldithiocarbamate (Na-DDTC) prior to flame atomic absorption spectrometric (FAAS) determinations. Metal complexes sorbed on the resin were eluted by 1 mol L(-1) HNO3 in acetone. Effects of the analytical conditions over the preconcentration yields of the metal ions, such as pH, quantity of Na-DDTC, eluent type, sample volume and flow rate, foreign ions etc. have been investigated. The limits of detection (LOD) of the analytes were found in the range 0.08-0.26 microg L(-1). The method was validated by analyzing three certified reference materials. The method has been applied for the determination of trace elements in some environmental samples.
Duran
Celal
C
Department of Chemistry, Faculty of Art and Science, Karadeniz Technical University, 61080 Trabzon, Turkey.
Gundogdu
Ali
A
Bulut
Volkan Numan
VN
Soylak
Mustafa
M
Elci
Latif
L
Sentürk
Hasan Basri
HB
Tüfekci
Mehmet
M
D000096:Acetone / Q000737:chemistry; D000327:Adsorption; D028241:Camellia sinensis / Q000737:chemistry; D031211:Corylus / Q000737:chemistry; D004050:Ditiocarb / Q000737:chemistry; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D019216:Metals, Heavy / Q000032:analysis* / Q000737:chemistry; D008900:Mineral Waters / Q000032:analysis; D017942:Nitric Acid / Q000737:chemistry; D012117:Resins, Synthetic / Q000737:chemistry; D045483:Rivers / Q000737:chemistry; D052616:Solid Phase Extraction; D013054:Spectrophotometry, Atomic / Q000379:methods
C521819:Amberlite XAD-2010; D004785:Environmental Pollutants; D019216:Metals, Heavy; D008900:Mineral Waters; D012117:Resins, Synthetic; D000096:Acetone; D017942:Nitric Acid; D004050:Ditiocarb