In situionic-liquid-dispersive liquid-liquid microextraction of Sudan dyes from liquid samples

2014 ◽  
Vol 37 (15) ◽  
pp. 1967-1973 ◽  
Author(s):  
Bo Xu ◽  
Daqian Song ◽  
Yuanpeng Wang ◽  
Yan Gao ◽  
Bocheng Cao ◽  
...  
Keyword(s):  
Sudan Dyes ◽  
Liquid Samples ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

scholarly journals The determination of V and Mo by dispersive liquid–liquid microextraction (DLLME) combined with laser-induced breakdown spectroscopy (LIBS)

2014 ◽  
Vol 29 (10) ◽  
pp. 1813-1818 ◽  
Author(s):  
Amanda M. D. de Jesus ◽  
Miguel Ángel Aguirre ◽  
Montserrat Hidalgo ◽  
Antonio Canals ◽  
Edenir R. Pereira-Filho
Keyword(s):  
Trace Analysis ◽  
Promising Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Liquid Samples ◽  
Laser Induced Breakdown ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

Analysis of extracts from DLLME by LIBS is a promising method for elemental trace analysis in liquid samples.

scholarly journals Speciation of arsenic (III,V) based on methyltrioctylammonium mercaptobenzoate and centrifuging dispersive liquid-liquid microextraction in water and blood samples

2019 ◽  
Vol 2 (04) ◽  
pp. 39-48 ◽  
Author(s):  
Ahmad Riahi ◽  
Elham Mosafa ◽  
Bahareh Fahimirad
Keyword(s):  
Water Samples ◽  
Limit Of Detection ◽  
Total Concentration ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Blood Samples ◽  
Real Samples ◽  
Liquid Samples ◽  
Dispersive Liquid Liquid Microextraction ◽  
Liquid Microextraction

A novel analytical method based on centrifuging dispersive liquid-liquid microextraction (CD-LLME) procedure for pre-concentration of As (III) has been developed prior to determine by hydride generation atomic absorption spectrometry (HG-AAS). In this method, 0.1 g of a task-specific ionic liquids (methyltrioctylammonium 2-mercaptobenzoate; TOMAS; TSIL) as the extracting and complexing solvent and acetone as dispersant solvent were rapidly added into the water and blood samples at pH 4.5. The As (V) is simply calculated by difference between total concentration and inorganic forms As (III) in liquid samples. By optimizing parameters, the enrichment factor (EF) was obtained 9.8 and 49.6 for blood and water samples, respectively. The limit of detection (LOD) of 22.4 ngL-1 and 4.3 ngL-1 were achieved for 10 mL and 50 mL of As(III) in blood and water samples, respectively (RSD<%5). The real samples were validated by certified reference material (CRM) by proposed procedure.

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