Separation and preconcentration by cloud point extraction procedures for determination of ions: recent trends and applications

CB Ojeda, FS Rojas - Microchimica Acta, 2012 - Springer
The cloud point extraction procedure is an alternative to liquid–liquid extraction and based
on the phase separation that occurs in aqueous solutions of non-ionic surfactants when …

Determination of cadmium (II), cobalt (II), nickel (II), lead (II), zinc (II), and copper (II) in water samples using dual-cloud point extraction and inductively coupled plasma …

L Zhao, S Zhong, K Fang, Z Qian, J Chen - Journal of hazardous materials, 2012 - Elsevier
A dual-cloud point extraction (d-CPE) procedure has been developed for simultaneous pre-
concentration and separation of heavy metal ions (Cd2+, Co2+, Ni2+, Pb2+, Zn2+, and …

SiO2/graphene composite for highly selective adsorption of Pb (II) ion

L Hao, H Song, L Zhang, X Wan, Y Tang… - Journal of colloid and …, 2012 - Elsevier
SiO2/graphene composite was prepared through a simple two-step reaction, including the
preparation of SiO2/graphene oxide and the reduction of graphene oxide (GO). The …

Synthesis and characterization of magnetic metal-organic framework (MOF) as a novel sorbent, and its optimization by experimental design methodology for …

A Bagheri, M Taghizadeh, M Behbahani… - Talanta, 2012 - Elsevier
This paper describes the synthesis and application of novel magnetic metal-organic
framework (MOF)[(Fe3O4–Pyridine)/Cu3 (BTC) 2] for preconcentration of Pd (II) and its …

Determination of cadmium in biological samples: An update from 2006 to 2011

P Wu, C Li, J Chen, C Zheng, X Hou - Applied Spectroscopy …, 2012 - Taylor & Francis
Cadmium has attracted global research interest due to its toxicity, metallomics, and contents
in biological samples. From a toxicological and biological point of view, analytical methods …

An optimized procedure for preconcentration, determination and on-line recovery of palladium using highly selective diphenyldiketone-monothiosemicarbazone …

RK Sharma, A Pandey, S Gulati, A Adholeya - Journal of hazardous …, 2012 - Elsevier
A novel, highly selective, efficient and reusable chelating resin, diphenyldiketone-
monothiosemicarbazone modified silica gel, was prepared and applied for the on-line …

Preconcentration and separation of ultra-trace palladium ion using pyridine-functionalized magnetic nanoparticles

A Bagheri, M Behbahani, MM Amini, O Sadeghi… - Microchimica Acta, 2012 - Springer
We present a study on the application of magnetic nanoparticles (MNPs) prepared from Fe 3
O 4 and functionalized with pyridine as an adsorbent for the solid-phase extraction of trace …

Simultaneous preconcentration of cadmium, cobalt and nickel in water samples by cationic micellar precipitation and their determination by inductively coupled …

A Beiraghi, S Babaee, M Roshdi - Microchemical Journal, 2012 - Elsevier
In the present study an easy micellar precipitation process at ambient temperature using
cationic surfactant cetyl-trimethyl ammonium bromide (CTAB) was applied to the …

Comprehensive Effects of Metal Ions on Responsive Characteristics of P(NIPAM-co-B18C6Am)

B Zhang, XJ Ju, R Xie, Z Liu, SW Pi… - The Journal of Physical …, 2012 - ACS Publications
Comprehensive investigations of the effects of species and concentrations of metal ions on
the ion-responsive behaviors of poly (N-isopropylacrylamide-co-benzo-18-crown-6 …

Cloud point extraction and flame atomic absorption spectrometry determination of lead (II) in environmental and food samples

M Soylak, E Yilmaz, M Ghaedi… - Journal of AOAC …, 2012 - academic.oup.com
A cloud point extraction procedure for the preconcentration of Pb2+ in various samples
following complexation with 2, 2-(1E, 1′ E)-1, 1′-(2, 2′-azanediylbis (ethane-2, 1-diyl) bis …