FAAS Determination of Ag(I) in Water, Anode Slime, Rock and Cream Samples by Solid Phase Extraction Method based on Sepabeads SP207/5-(p-Dimethylaminobenzylidene) Rhodanine Combination


Yavuz E. , Tokalıoğlu Ş. , ŞAHAN S.

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, cilt.24, ss.736-744, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 24 Konu: 5
  • Basım Tarihi: 2013
  • Doi Numarası: 10.5935/0103-5053.20130094
  • Dergi Adı: JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
  • Sayfa Sayıları: ss.736-744

Özet

A simple and reliable method for separation/preconcentration of Ag(I) by using 5-(p-dimethylaminobenzylidene) rhodanine reagent and Sepabeads SP207 adsorbent prior to its determination by flame atomic absorption spectrometry (FAAS) was developed. The optimum pH of the method for separation/preconcentration of Ag(I) was found to be 4.0. The preconcentration factor was 200. The limits of detection and quantification of the method were 0.13 and 0.44 mu g L-1, respectively. Relative standard deviation and adsorption capacity were 1.0% and 5.40 mg g(-1), respectively. The recovery of Ag(I) at pH 4.0 with 50 mg resin was quantitative without interferences caused by alkaline and alkaline earth cations, presenting concentrations of up to 10000 mu g mL(-1), except for K+. The accuracy of the method was checked by analysing TMDA-70 lake water certified reference material and by addition-recovery experiments. The method was applied for the determination of Ag(I) in tap water, mineral water, sea water, anode slime, rock and cream samples.
A simple and reliable method for separation/preconcentration of Ag(I) by using 
5-(p-dimethylaminobenzylidene) rhodanine reagent and Sepabeads SP207 adsorbent prior to its 
determination by flame atomic absorption spectrometry (FAAS) was developed. The optimum pH 
of the method for separation/preconcentration of Ag(I) was found to be 4.0. The preconcentration 
factor was 200. The limits of detection and quantification of the method were 0.13 and 
0.44 µg L
-1, respectively. Relative standard deviation and adsorption capacity were 1.0% and 
5.40 mg g-1, respectively. The recovery of Ag(I) at pH 4.0 with 50 mg resin was quantitative 
without interferences caused by alkaline and alkaline earth cations, presenting concentrations 
of up to 10000 µg mL-1, except for K+
. The accuracy of the method was checked by analysing 
TMDA-70 lake water certified reference material and by addition-recovery experiments. The 
method was applied for the determination of Ag(I) in tap water, mineral water, sea water, anode 
slime, rock and cream samples.