University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Mustafa Soylak

Abbrev:
Soylak, M.
Other Names:
Address:
Department of Chemistry, Erciyes University, 38039 Kayseri, Turkey
Phone:
+90-352-437-4933
Fax:
+90-352-437-4933

Citations 7

"The Uses Of 1-(2-pyridylazo) 2-naphtol (PAN) Impregnated Ambersorb 563 Resin On The Solid Phase Extraction Of Traces Heavy Metal Ions And Their Determinations By Atomic Absorption Spectrometry"
Talanta 2003 Volume 60, Issue 1 Pages 215-221
Ibrahim Narin and Mustafa Soylak

Abstract: 1-(2-pyridylazo) 2-naphtol (PAN) impregnated Ambersorb 563 resin was used as solid phase extractor of copper, nickel, cadmium, lead, chromium and cobalt ions in aqueous solutions prior to their atomic absorption spectrometric determinations. The parameters including pH, sample volume, matrix effects were also investigated. The relative standard deviation (RSD) of the combined method of sample treatment, pre-concentration and determination with atomic absorption spectrometry is generally lower than 10%. The limit of detection was between 0.21 and 1.4 µg l-1. The results were used for pre-concentration of analyte ions from natural water samples. The method was also applied to a stream sediment standard reference material (GBW7309) for the determination of Cu, Ni, Cd, Pb, Cr and Co.

"Determination Of Trace Metal Ions By AAS In Natural Water Samples After Preconcentration Of Pyrocatechol Violet Complexes On An Activated Carbon Column"
Talanta 2000 Volume 52, Issue 6 Pages 1041-1046
Ibrahim Narin, Mustafa Soylak, Latif Elçi and Mehmet Doğan

Abstract: A simple pre-concentration method is described for the determination of Cu, Mn, Co, Cd, Pb, Ni and Cr in water samples by flame AAS. Trace metal ions in water were sorbed as pyrocatechol violet complexes on activated carbon column at the pH range of 4-8, then eluted with 1 M HNO3 in acetone. The effect of major cations and anions of the natural water samples on the sorption of metal ions has been also investigated. The concentration of the metal ions detected after pre-concentration was in agreement with the added amount. The present method was found to be applicable to the pre-concentration of Cu, Mn, Co, Cd, Pb, Ni and Cr in natural water samples with good results such as RSD from 3 to 8% (N = 10) and detection limits under 70 ng. 1-1.
Preconcentration

"Solid Phase Extraction Of Trace Metal Ions In Drinking Water Samples From Kayseri-Turkey"
J. Trace Microprobe Tech. 2000 Volume 18, Issue 3 Pages 397-403
Soylak, M.;Elci, L.

Abstract: The concentrations of Ni, Pb, Cd, Cu and Co in drinking water from wells, direct sources or storage tanks in 18 sites of Kayseri (Turkey) were determined by graphite furnace atomic absorption spectrometry, after enrichment on an Amberlite XAD-4 resin to reduce the incidence of contamination. The levels of Ni, Pb, Cd, Cu and Co in the drinking waters were in the range of 2.9 to 9.5, 2.7 to 29.9, 0.7 to 3.1, 2.0 to 21.6 and 2.1 to 6.4 µg/L, respectively. These values for the drinking water supplies of Kayseri City were below the maximum tolerable limits set by the WHO and the Water Pollution Control Regulation of the Turkish authorities. The correlation between metal ions were also calculated.
Nickel Lead Cadmium Copper Cobalt Water Spectrophotometry Preconcentration Activated carbon Preconcentration Amberlite

"On-line Preconcentration System For Cadmium Determination In Environmental Samples By Flame Atomic Absorption Spectrometry"
Chem. Anal. 2005 Volume 50, Issue 4 Pages 705-715
M. Soylak and I. Narin

Abstract: A simple, environmentally friendly, economical and sensitive method for the determination of trace cadmium has been proposed. The method utilised flow injection on-line solid phase extraction coupled with flame atomic absorption spectrometry (FAAS). Determination was based on the adsorption of cadmium(II) ions on a mini-column packed with Chelex-100 at pH 7. The influence of eluent composition and concentration, pH of the solution, and flow rates on the pre-concentration and elution steps were investigated. The effects of alkaline, earth alkaline and some transition metal ions on the adsorption of cadmium on Chelex-100 were also examined. The detection limit and recovery for cadmium were 17 ng L-1 and 100-104%, respectively. The proposed procedure was successively applied to the determination of cadmium content in black tea samples and in the following reference materials: stream sediment (GBW07310), sewage sludge (CRM144R), and sea water (CASS-4).

"Determination Of Trace Amounts Of Copper In Natural Water Samples By Flame Atomic Absorption Spectrometry Coupled With Flow Injection On-line Solid Phase Extraction On Ambersorb 563 Adsorption Resin"
Chem. Anal. 2003 Volume 48, Issue 1 Pages 77-85
S Saracoglu, M Soylak, L Elci

Abstract: Ambersorb 563 adsorption resin was used for on-line separation/pre-concentration and determination of copper by flow injection flame atomic absorption spectrometry. Copper was quantitatively recovered from the model solutions on mini column at the appropriate pH without adding chelating reagent. The elution step was performed with a stream of 0.25 mol L-1 HNO3 at 5.0 mL min-1, which introduced copper directly into the nebuliser of the flame atomic absorption spectrometer. The proposed method was successfully applied to the determination of copper in natural water samples. The detection limit (3?) was 1.0 ?g L-1 for pre-concentration at the flow rate 5.0 mL min-1. The recoveries of spike additions to water samples exceeded 95%.

"Cobalt Determination In Natural Water And Table Salt Samples By Flame Atomic Absorption Spectroscopy/on-line Solid Phase Extraction Combination"
Anal. Lett. 2002 Volume 35, Issue 14 Pages 2363-2374
Aslihan Uzun Karatepe, Mustafa Soylak, Latif Elci

Abstract: In the present work, a methyl acrylate resin (Chromosorb 105) was used for on-line solid phase extraction and determination of traces cobalt by flame atomic absorption spectrometry (FAAS). Cobalt is pre-concentrated at pH 9 onto mini column at NH3 media. The elution step for retained cobalt is performed with a stream of I M HCl at 4.0 mL/min and cobalt displaced is introduced directly into the nebulizer of flame atomic absorption spectrometer. The effects of analytical parameters including pH, flow rates etc., were investigated. The proposed method was successfully applied to the determination of cobalt in tap water and table salt samples. A detection limit of 2.5 µg/L for pre-concentration at 4.0 mL/min is obtained and an enrichment factor of 50 could be achieved. The recoveries of spike additions to tap water and table salt samples were greater than 95%. The relative standard deviations were also below 4%.

"On-line Preconcentration System For Determination Of Lead In Water And Sediment Samples By Flow Injection-flame Atomic Absorption Spectrometry"
Anal. Lett. 2002 Volume 35, Issue 3 Pages 487-499
Mustafa Soylak; Latif Elci; Yalcin Akkaya; Mehmet Dogan

Abstract: Diaion HP-20 was used for on-line separation/pre-concentration and determination of lead by flow injection flame atomic absorption spectrometry. Lead is pre-concentrated at pH 9 as its 1-nitroso-2-naphthol (NN) complex onto mini column. The elution step is performed with a stream of 1 M HNO3 at 3.0 ml/min and lead displaced is introduced directly into the nebuliser of flame atomic absorption spectro-meter. The proposed method was successfully applied to the determination of lead in a stream sediment reference material (23.9 ± 0.12 ?g/g certified value: 23.0 ?g/g) and natural water samples. The detection limit (3?) was 2.0 ?g/l for pre-concentration at 3.0 ml/min. The recoveries of spike additions to drinking water sample were greater than 95%.