scholarly journals Speciation of chromium in river water samples contaminated with leather effluents by flame atomic absorption spectrometry after separation/preconcentration by cloud point extraction

2009 ◽  
Vol 92 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Geraldo D. Matos ◽  
Edmagno B. dos Reis ◽  
Antonio C.S. Costa ◽  
Sergio L.C. Ferreira
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
River Water ◽  
Cloud Point ◽  
Flame Atomic Absorption Spectrometry ◽  
Water Samples ◽  
Cloud Point Extraction ◽  
Absorption Spectrometry ◽  
River Water Samples ◽  
Flame Atomic Absorption

Determination of rhodium in water samples using cloud point extraction (CPE) coupled with flame atomic absorption spectrometry (FAAS)

2006 ◽  
Vol 157 (3-4) ◽  
pp. 237-244 ◽  
Author(s):  
Kanchi Suvardhan ◽  
Kailasa Suresh Kumar ◽  
Dasari Rekha ◽  
Pantrangam Subrahmanyam ◽  
Kapuvedi Kiran ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Cloud Point ◽  
Flame Atomic Absorption Spectrometry ◽  
Water Samples ◽  
Cloud Point Extraction ◽  
Absorption Spectrometry ◽  
Flame Atomic Absorption

scholarly journals A novel cloud point extraction method for separation and preconcentration of cadmium and copper from natural waters and their determination by flame atomic absorption spectrometry

2015 ◽  
Vol 52 (3) ◽  
pp. 178-186 ◽  
Author(s):  
Cennet Karadaş
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
River Water ◽  
Cloud Point ◽  
Flame Atomic Absorption Spectrometry ◽  
Extraction Method ◽  
Cloud Point Extraction ◽  
Absorption Spectrometry ◽  
Flame Atomic Absorption ◽  
Separation And Preconcentration

A sensitive and simple cloud point extraction method was developed for simultaneous separation and preconcentration of cadmium and copper prior to their determination by flame atomic absorption spectrometry. 4-phenyl-3-thiosemicarbazide was used as complexing agent and the cadmium and copper complexes were extracted from the aqueous phase by Triton X-114 surfactant. The effects of parameters such as sample pH, ligand amount, concentration of surfactant, incubation temperature and time were optimized. For 20 mL of preconcentrated solution, the detection limits (3σ) were 0.20 and 0.49 μg L−1, and the enrichment factors were 20.7 and 19.9 for Cd(II) and Cu(II), respectively. In order to verify the accuracy of the developed method, certified reference materials (SLRS-5 river water and SPS-SW2 Batch 127 surface water) were analysed. Results obtained were in good agreement with the certified values. The proposed method was applied to tap water, river water and seawater samples with satisfactory results.

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