Iron species determination by task-specific ionic liquid-based in situ solvent formation dispersive liquid-liquid microextraction combined with flame atomic absorption spectrometry

2017 ◽  
Vol 97 (13) ◽  
pp. 4635-4642 ◽  
Author(s):  
Susan Sadeghi ◽  
Vahid Ashoori
Keyword(s):  
Ionic Liquid ◽  
Absorption Spectrometry ◽  
Iron Species ◽  
Species Determination ◽  
Flame Atomic Absorption ◽  
Solvent Formation ◽  
Dispersive Liquid Liquid Microextraction ◽  
Task Specific Ionic Liquid ◽  
Liquid Microextraction

Task-specific ionic liquid based in situ dispersive liquid–liquid microextraction for the sequential extraction and determination of chromium species: optimization by experimental design

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60621-60629 ◽  
Author(s):  
Susan Sadeghi ◽  
Ali Zeraatkar Moghaddam
Keyword(s):  
Ionic Liquid ◽  
Absorption Spectrometry ◽  
Selective Extraction ◽  
Chromium Species ◽  
Flame Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Task Specific Ionic Liquid ◽  
Liquid Microextraction

An optimised task specific ionic liquid-basedin situdispersive liquid–liquid microextraction (in situTSIL-DLLME) with flame atomic absorption spectrometry (FAAS) methodology was developed for the selective extraction of Cr(iii) and Cr(vi) species.

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.

scholarly journals Cobalt separation from water and food samples based on penicillamine ionic liquid and dispersive liquid-liquid microextraction before determination by AT-FAAS

2021 ◽  
Vol 4 (03) ◽  
pp. 21-32
Author(s):  
Yaghoub Pourshojaei ◽  
Alireza Nasiri
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Health Effect ◽  
Chelating Agent ◽  
Absorption Spectrometry ◽  
Food Samples ◽  
Cobalt Ions ◽  
Flame Atomic Absorption ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

The cobalt compounds have adverse health effect on human and caused damage to the DNA cells, neurological and endocrine systems. Therefore, the separation and determination of cobalt in water and food samples must be considered. In this research, the (2S)-2-amino-3-methyl-3-sulfanylbutanoic acid (penicillamine) as a chelating agent mixed with ionic liquid (OMIM PF6) /acetone and used for extraction of cobalt from 50 mL of water samples by ultra-assisted dispersive liquid-liquid microextraction (USA-DLLME) at pH=6. Based on procedure, the samples were shaked for 5 min (25oC) and after complexation of cobalt ions by thiol and amine group of penicillamine, the ionic liquid phase separated in the bottom of the conical tube by centrifuging for 3.0 min. The upper liquid phase was vacuumed by the auto-sampler and the Co2+ ions back extracted from the ionic liquid/ penicillamine in acidic pH. Finally, the cobalt concentration in remained solution was determined by atom trap flame atomic absorption spectrometry (AT-FAAS). The main parameters such as the sample volume, the penicillamine amount, the ionic liquid amount and the shaking time were optimized. The linear range, the detection limit (LOD) and enrichment factor were obtained 1.5-62 μg L-1, 0.38 μg L-1 and 98.5, respectively (r = 0.9995, RSD%=2.2).

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