Development a robust ionic liquid-based dispersive liquid-liquid microextraction against high concentration of salt combined with flame atomic absorption spectrometry using microsample introduction system for preconcentration and determination of cobalt in water and saline samples

2010 ◽  
Vol 172 (1-2) ◽  
pp. 75-82 ◽  
Author(s):  
Seyed Reza Yousefi ◽  
Seyed Javad Ahmadi
Keyword(s):  
Ionic Liquid ◽  
Atomic Absorption Spectrometry ◽  
Flame Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
High Concentration ◽  
Flame Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Microsample Introduction ◽  
Liquid Microextraction

Determination of trace levels of iron in serum samples of hepatitis B and C patients using dispersive liquid–liquid microextraction

2015 ◽  
Vol 7 (21) ◽  
pp. 9211-9217 ◽  
Author(s):  
Salma Aslam Arain ◽  
Tasneem Gul Kazi ◽  
Hassan Imran Afridi ◽  
Abdul Rasool Abbasi ◽  
Naeem Ullah ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Hepatitis B ◽  
Atomic Absorption Spectrometry ◽  
Flame Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
Serum Samples ◽  
Flame Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

An environmentally friendly ionic liquid-based dispersive liquid–liquid microextraction method for the preconcentration of trace levels of iron in serum samples of hepatitis B and C patients, prior to its determination by flame atomic absorption spectrometry.

Separation and Determination of Copper in Bottled Water Samples by Combination of Dispersive Liquid–Liquid Microextraction and Microsample Introduction Flame Atomic Absorption Spectrometry

2013 ◽  
Vol 96 (6) ◽  
pp. 1435-1439 ◽  
Author(s):  
Demirhan Citak ◽  
Mustafa Tuzen
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Flame Atomic Absorption Spectrometry ◽  
Water Samples ◽  
Absorption Spectrometry ◽  
Complexing Agent ◽  
Flame Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Microsample Introduction ◽  
Liquid Microextraction

Abstract A new and simple method for the determination of trace amounts of Cu(II) was developed by combination of dispersive liquid–liquid microextraction (DLLME) preconcentration and microsample introduction flame atomic absorption spectrometry. In this method, ethanol and chloroform were chosen as disperser and extraction solvents, respectively, and 1-nitroso-2-naphthol was used as the complexing agent. The factors affecting the extraction efficiency and determination of Cu(II), including extraction and disperser solvent nature and volume, concentration of the complexing agent, pH of the solution, extraction time, and matrix ions, were investigated. Under optimal conditions, the LOD for Cu(II) was 0.95 μg/L with a preconcentration factor of 70. The RSD was 1.9%. The accuracy of the developed DLLME method was verified by determination of Cu(II) in a certified reference material (NRCC-SLRS-4 river water). The relative error was –3.31%. The developed preconcentration procedure was successfully applied to the analysis of bottled drinking water samples.

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