List of Articles Preconcentration of heavy metals

• Open Access Article
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  1 - Fabrication method of extracting of Co(II) in water samples by synthesis MG-Chi/Fe3O4
  
• Open Access Article
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  2 - Fabrication of method with nano-plates by dispersive solid-phase extraction of anionic dye from aqueous solution Eriochrome Black T (EBT)
  
• Open Access Article
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  3 - Solid Phase Extraction of trace Cd(II) ions in water samples by Modified nano graphene oxide nano-plate
  
• Open Access Article
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  4 - Dispersive solid-phase extraction method with 2-aminopyridine/graphene oxide nano-plates of trace Co(II) in water samples
  
• Open Access Article
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  5 - Alternative extraction for separation of trace Chromium (VI) by 2-Aminopyridine/Graphene oxide nano-plates in water samples
  
• Open Access Article
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  6 - Fabricated Synthesis Modify Multi Walled Carbon Nanotubes Carboxylate of Trace Co(II) in Water Samples by Dispersive Solid Phase Extraction
  
• Open Access Article
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  7 - Dispersive Solid Phase Extraction of trace Cu(II) in water samples by synthesis modify Multi walled carbon nanotubes carboxylate