Determination of ultra trace arsenic species in water samples by hydride generation atomic absorption spectrometry after cloud point extraction.

@article{Ulusoy2011DeterminationOU,
  title={Determination of ultra trace arsenic species in water samples by hydride generation atomic absorption spectrometry after cloud point extraction.},
  author={Halil İbrahim Ulusoy and Mehmet Akcay and Song{\"u}l Ulusoy and Ramazan G{\"u}rkan},
  journal={Analytica chimica acta},
  year={2011},
  volume={703 2},
  pages={
          137-44
        }
}
Cloud point extraction (CPE) methodology has successfully been employed for the preconcentration of ultra-trace arsenic species in aqueous samples prior to hydride generation atomic absorption spectrometry (HGAAS). As(III) has formed an ion-pairing complex with Pyronine B in presence of sodium dodecyl sulfate (SDS) at pH 10.0 and extracted into the non-ionic surfactant, polyethylene glycol tert-octylphenyl ether (Triton X-114). After phase separation, the surfactant-rich phase was diluted with… CONTINUE READING
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