title: Dysprosium(III) hydroxide coprecipitation system for the separation and preconcentration of heavy metal contents of table salts and natural waters.
abstract: A procedure for the determination of trace amounts of Pb(II), Cu(II), Ni(II), Co(II), Cd(II) and Mn(II) is described, that combines atomic absorption spectrometry-dysprosium hydroxide coprecipitation. The influences of analytical parameters including amount of dysprosium(III), centrifugation time, sample volume, etc. were investigated on the recoveries of analyte ions. The effects of concomitant ions were also examined. The recoveries of the analyte ions were in the range of 95.00-104.00%. The detection limits corresponding to three times the standard deviation of the blank for the analytes were in the range of 14.1-25.3 microg/L. The method was applied to the determination of lead, copper, nickel, cobalt, cadmium and manganese ions in natural waters and table salts good results were obtained (relative standard deviations <10%, recoveries >95%).
authors.affiliation: Erciyes University, Faculty of Art and Science, Department of Chemistry, 38039 Kayseri, Turkey.
authors.forename: Dondu Serpil Kacar
authors.initials: DS
authors.lastname: Peker
authors.forename: Orhan
authors.initials: O
authors.lastname: Turkoglu
authors.forename: Mustafa
authors.initials: M
authors.lastname: Soylak
mesh_terms: D002498:Centrifugation; D011232:Chemical Precipitation; D004419:Dysprosium / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D006878:Hydroxides / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D019216:Metals, Heavy / Q000302:isolation & purification*; D008900:Mineral Waters / Q000032:analysis*; D012965:Sodium Chloride / Q000737:chemistry*
chemical_list: D006878:Hydroxides; D007477:Ions; D019216:Metals, Heavy; D008900:Mineral Waters; C521822:dysprosium(III) hydroxide; D004419:Dysprosium; D012965:Sodium Chloride