scholarly journals Cloud point extraction for the determination of copper in environmental samples by flame atomic absorption spectrometry

Química Nova ◽  
2008 ◽  
Vol 31 (1) ◽  
pp. 70-74 ◽  
Author(s):  
Ardeshir Shokrollahi ◽  
Mehrorang Ghaedi ◽  
Shiva Gharaghani ◽  
Mohammad Reza Fathi ◽  
Mustafa Soylak
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Cloud Point ◽  
Flame Atomic Absorption Spectrometry ◽  
Environmental Samples ◽  
Cloud Point Extraction ◽  
Absorption Spectrometry ◽  
Flame Atomic Absorption ◽  
Determination Of Copper

scholarly journals Cloud point extraction for the determination of trace copper(II) in environmental samples using a new synthesized reagent and flame atomic absorption spectrometry

2013 ◽  
Vol 32 (1) ◽  
pp. 69 ◽  
Author(s):  
Zeynep Yurtman Gündüz ◽  
Oya Aydin Urucu ◽  
Ece Kok Yetimoglu ◽  
Hayati Filik
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Cloud Point ◽  
Flame Atomic Absorption Spectrometry ◽  
Cloud Point Extraction ◽  
Stream Water ◽  
Absorption Spectrometry ◽  
Flame Atomic Absorption ◽  
Determination Of Copper

Cloud point extraction for the determination of copper(II) is proposed after the formation of a complex with sulfapyridylazo resorcinol (SPAR) and later measurement by flame atomic absorption spectrometry (FAAS) using Triton X-100 as a surfactant. The surfactant-rich phase was diluted with nitric acid in methanol, prior to FAAS measurement. Analytical parameters including pH, concentration of the chelating agent and surfactant, equilibration temperature and time were optimized.  The effects of matrix ions on the recovery of copper ions were also studied.  A detection limit of 1.64 μg L−1 along with an enrichment factor of 31 for Cu were achieved. The method was successfully applied to the determination of copper in tap water, stream water, rain water and a standard reference material.

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