Switchable polarity solvent for liquid phase microextraction of Cd(II) as pyrrolidinedithiocarbamate chelates from environmental samples

Yilmaz E., SOYLAK M.

ANALYTICA CHIMICA ACTA, cilt.886, ss.75-82, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 886
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.aca.2015.06.021
  • Dergi Adı: ANALYTICA CHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.75-82
  • Anahtar Kelimeler: Switchable polarity solvent, Green chemistry, Cadmium, Preconcentration, Proton transfer reaction, Liquid phase microextraction, ATOMIC-ABSORPTION-SPECTROMETRY, IONIC LIQUID, FOOD SAMPLES, TRACE-METALS, CADMIUM, EXTRACTION, PRECONCENTRATION, COPPER, LEAD, DESIGN
  • Erciyes Üniversitesi Adresli: Evet

Özet

A switchable polarity solvent was synthesized from triethylamine (TEA)/water/CO2 (Dry ice) via proton transfer reaction has been used for the microextraction of cadmium(II) as pyrrolidinedithiocarbamate (APDC) chelate. Cd(II)-APDC chelate was extracted into the switchable polarity solvent drops by adding 2 mL 10 M sodium hydroxide solution. Analytical parameters affecting the complex formation and microextraction efficiency such as pH, amount of ligand, volume of switchable polarity solvent and NaOH, sample volume were optimized. The effects of foreign ions were found tolerably. Under optimum conditions, the detection limit was 0.16 mu g L-1 (3Sb/m, n = 7) and the relative standard deviation was 5.4% (n = 7). The method was validated by the analysis of certified reference materials (TMDA-51.3 fortified water, TMDA-53.3 fortified water and SPS-WW2 waste water, 1573a Tomato Leaves and Oriental Basma Tobacco Leaves (INCT-OBTL-5)) and addition/recovery tests. The method was successfully applied to determination of cadmium contents of water, vegetable, fruit and cigarette samples. (C) 2015 Elsevier B.V. All rights reserved.