Cloud point extraction preconcentration for capillary electrophoresis of metal ions

2004 ◽  
Vol 507 (2) ◽  
pp. 199-204 ◽  
Author(s):  
An-Na Tang ◽  
Dong-Qing Jiang ◽  
Xiu-Ping Yan
Keyword(s):  
Capillary Electrophoresis ◽  
Metal Ions ◽  
Cloud Point ◽  
Cloud Point Extraction ◽  
Extraction Preconcentration

Complex-forming organic ligands in cloud-point extraction of metal ions: A review

Talanta ◽  
2013 ◽  
Vol 110 ◽  
pp. 202-228 ◽  
Author(s):  
K. Pytlakowska ◽  
V. Kozik ◽  
M. Dabioch
Keyword(s):  
Metal Ions ◽  
Cloud Point ◽  
Cloud Point Extraction ◽  
Organic Ligands

scholarly journals Cloud Point Extraction for the Determination of Different Metal Ions by Using Bis(2-Acetyl Pyridine 4-Phenyl 3-Thiosemicarbazone) as Complexing Reagent

2019 ◽  
Vol 62 (2) ◽  
pp. 76-81
Author(s):  
Ambreen Shah ◽  
Fayyaz Ahmed Keerio ◽  
Saima Qayyum Memon ◽  
Ghulam Zuhra Memon
Keyword(s):  
Metal Ions ◽  
Cloud Point ◽  
Cloud Point Extraction ◽  
Sodium Dodecyl ◽  
Chelating Agent ◽  
Absorption Spectrometry ◽  
Micellar Phase ◽  
Flame Atomic Absorption ◽  
Effects Of Ph

A new method of cloud point extraction was determined for preconcentration and determination of different metal ions like copper(II), nickel(II) and cobalt(II) ions. The complexation has been done by bis(2-acetyl pyridine 4-phenyl 3-thiosemicarbazone) (APPT) using sodium dodecyl sulphate (SDS) as surfactant. Metal ions are extracted into the phase rich in SDS after centrifugation. Initially, micellar phase was dissolved in 10 mL of deionized water then acidified with 0.5 mol/L HNO3, enhanced the surfactant- rich phase and analyzed by flame atomic absorption spectrometry (FAAS). The effects of pH, the concen- trations of metal ions and chelating agent (APPT), volume of surfactant (SDS), equilibration temperature and time were studied on CPE. The preconcentration factor obtained was 25 and the limits of detection(DL) obtained for cobalt(II), nickel(II) and copper(II) were 1.5, 1.7 and 2.4 ng/mL, respectively. This method of preconcentration was effectively useful for the determination of cobalt(II), nickel(II) and copper(II) in water samples.

Determination of Trace Mercury by Cloud Point Extraction Preconcentration Coupled with Spectrophotometry

2007 ◽  
Vol 7 (20) ◽  
pp. 3123-3126 ◽  
Author(s):  
Mahmoud Reza Sohrabi ◽  
Elham Farokhi ◽  
Atena Adnani ◽  
Mona Ziaian
Keyword(s):  
Cloud Point ◽  
Cloud Point Extraction ◽  
Extraction Preconcentration

Surfactant cloud point extraction and preconcentration of organic compounds prior to chromatography and capillary electrophoresis

2000 ◽  
Vol 902 (1) ◽  
pp. 251-265 ◽  
Author(s):  
R Carabias-Martı́nez ◽  
E Rodrı́guez-Gonzalo ◽  
B Moreno-Cordero ◽  
J.L Pérez-Pavón ◽  
C Garcı́a-Pinto ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Cloud Point ◽  
Organic Compounds ◽  
Cloud Point Extraction
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