title: Simultaneous preconcentration of Co(II), Ni(II), Cu(II), and Cd(II) from environmental samples on Amberlite XAD-2000 column and determination by FAAS.
abstract: A new method for the preconcentration of some trace metals (Co, Ni, Cu, and Cd) as complexed with ammonium pyrrolidynedithiocarbamate (APDC) was developed using a mini-column filled with Amberlite XAD-2000 resin. Metal contents were determined by flame atomic absorption spectrometry (FAAS) after the metal complexes accumulated on the resin were eluted with 1M HNO(3) in acetone. The effects of the analytical parameters such as sample pH, quantity of complexing agent, eluent type, resin quantity, sample volume, sample flow rate, and matrix ions were investigated on the recovery of the metals from aqueous solutions. The relative standard deviation (R.S.D.) of the method was <6%. The validation of the method was confirmed using two certified reference materials (CRM TMDW-500 Drinking Water and CRM SA-C Sandy Soil C). The method was successfully applied to some stream waters and mushroom samples from Eastern Black Sea Region (Trabzon city) of Turkey.
authors.affiliation: Department of Chemistry, Karadeniz Technical University, 61080 Trabzon, Turkey. cduran@ktu.edu.tr
authors.forename: Celal
authors.initials: C
authors.lastname: Duran
authors.forename: Hasan Basri
authors.initials: HB
authors.lastname: Senturk
authors.forename: Latif
authors.initials: L
authors.lastname: Elci
authors.forename: Mustafa
authors.initials: M
authors.lastname: Soylak
authors.forename: Mehmet
authors.initials: M
authors.lastname: Tufekci
mesh_terms: D000327:Adsorption; D000363:Agaricales / Q000737:chemistry; D002852:Chromatography, Ion Exchange; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D007475:Ion Exchange Resins; D019216:Metals, Heavy / Q000032:analysis*; D012117:Resins, Synthetic; D012996:Solutions; D013054:Spectrophotometry, Atomic; D014421:Turkey; D014867:Water; D014881:Water Supply / Q000032:analysis
chemical_list: D004785:Environmental Pollutants; D007202:Indicators and Reagents; D007475:Ion Exchange Resins; D019216:Metals, Heavy; D012117:Resins, Synthetic; D012996:Solutions; D014867:Water; C046797:amberlite