title: Copper(II)-8-hydroxquinoline coprecipitation system for preconcentration and separation of cobalt(II) and manganese(II) in real samples.
abstract: A separation-preconcentration procedure based on the coprecipitation of cobalt(II) and manganese(II) ions with copper(II)-8-hydroxquinoline system has been developed. The analytical parameters including pH, amount of copper(II) as carrier element, amount of 8-hydroxquinoline, sample volume, etc., was investigated for the quantitative recoveries of Co(II) and Mn(II). No interferic effects were observed from the concomitant ions which are present in real samples. The detection limits for analyte ions by three sigma criteria were 0.86microgL(-1) for cobalt and 0.98microgL(-1) for manganese. The validation of the presented preconcentration procedure was performed by the analysis of NIST SRM 2711 Montana soil and GBW 07605 Tea certified reference materials. The procedure presented was applied to the analyte contents of real samples including natural waters and some food samples with successfully analytical results.
authors.affiliation: Erciyes University, Faculty of Art and Science, Department of Chemistry, 38039-Kayseri, Turkey. msoylak@gmail.com
authors.forename: Mustafa
authors.initials: M
authors.lastname: Soylak
authors.forename: Betul
authors.initials: B
authors.lastname: Kaya
authors.forename: Mustafa
authors.initials: M
authors.lastname: Tuzen
mesh_terms: D011232:Chemical Precipitation; D003035:Cobalt / Q000737:chemistry / Q000302:isolation & purification*; D003300:Copper / Q000737:chemistry; D004785:Environmental Pollutants / Q000737:chemistry / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D008345:Manganese / Q000737:chemistry / Q000302:isolation & purification*; D015125:Oxyquinoline / Q000737:chemistry
chemical_list: D004785:Environmental Pollutants; D003035:Cobalt; D008345:Manganese; D015125:Oxyquinoline; D003300:Copper