Journal ArticleDOI
High preconcentration of ultra-trace metal ions by liquid–liquid extraction using water/oil/water emulsions as liquid surfactant membranes
Yasuaki Okamoto,Yoshitaka Nomura,Hiderou Nakamura,Kazuyuki Iwamaru,Terufumi Fujiwara,Takahiro Kumamaru +5 more
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TLDR
In this article, a high preconcentration method by liquid-liquid extraction using liquid surfactant membranes was developed, which achieved a concentration factor of 570, 820, 750, 970, 860, and 880 for chromium(III), manganese(II), cobalt, nickel, copper, and cadmium, respectively.About:
This article is published in Microchemical Journal.The article was published on 2000-10-01. It has received 51 citations till now. The article focuses on the topics: Liquid paraffin & Liquid–liquid extraction.read more
Citations
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Development of dispersive micro-solid phase extraction based on micro and nano sorbents
Tahere Khezeli,Ali Daneshfar +1 more
TL;DR: In this paper, a comparison of Dispersive micro-solid phase extraction (D-μ-SPE) with SPE method from several analytical and economical aspects is presented.
Journal ArticleDOI
Solid-phase extraction of Mn(II), Co(II), Ni(II), Cu(II), Cd(II) and Pb(II) ions from environmental samples by flame atomic absorption spectrometry (FAAS)
Celal Duran,Ali Gundogdu,Volkan Numan Bulut,Mustafa Soylak,Latif Elci,Hasan Basri Senturk,Mehmet Tufekci +6 more
TL;DR: A new method using a column packed with Amberlite XAD-2010 resin as a solid-phase extractant has been developed for the multi-element preconcentration of Mn(II, Co(II), Ni(II], Ni( II), Cu(II%), Cd(II) and Pb(II); and the method has been applied for the determination of trace elements in some environmental samples.
Journal ArticleDOI
Removal of copper ions from a waste mine water by a liquid emulsion membrane method
TL;DR: In this article, an emulsified liquid membrane (ELM) was used to extract valuable or toxic metals from dilute mine solutions using an extractor based on emulsifying liquid membranes.
Journal ArticleDOI
Enrichment and determinations of nickel(II), cadmium(II), copper(II), cobalt(II) and lead(II) ions in natural waters, table salts, tea and urine samples as pyrrolydine dithiocarbamate chelates by membrane filtration–flame atomic absorption spectrometry combination
Ibrahim Narin,Mustafa Soylak +1 more
TL;DR: In this paper, ammonium pyrrolydine dithiocarbamate (APDC) complexes were adsorbed on cellulose nitrate membrane filter as their ammonium Pyrroldine DithIocaramate complexes and then membrane filter was dissolved by using nitric acid.
Journal ArticleDOI
Review of procedures involving separation and preconcentration for the determination of cadmium using spectrometric techniques.
Sergio Luis Costa Ferreira,Jailson B. de Andrade,Maria das Graças Andrade Korn,Madson de Godoi Pereira,Valfredo Azevedo Lemos,Walter Nei Lopes dos Santos,Frederico de Medeiros Rodrigues,Anderson Santos Souza,Hadla S. Ferreira,Erik Galvão Paranhos da Silva +9 more
TL;DR: This review covers separation and preconcentration procedures, such as electrochemical deposition, precipitation, coprecipitation, solid phase extraction, liquid-liquid extraction (LLE) and cloud point extraction (CPE), and considers the features of the their application with several spectrometric techniques.
References
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Journal ArticleDOI
Flüssigmembran‐Technik – Übersicht über Phänomene, Transportmechanismen und Modellbildungen
Rolf Marr,Andreas Kopp +1 more
TL;DR: A survey of related phenomena, mass transfer, and models is presented in this paper, where a new model has been developed to describe mass transfer in liquid membranes, in which the spherical droplets serve as reaction centres.
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Reversed Micellar Mediated Luminol Chemiluminescence Detection of Iron(II, III) Combined with On-Line Solvent Extraction Using 8-Quinolinol
TL;DR: In this article, an enhancement of the chemiluminescence (CL) emission, observed when the iron(III) complex of 8-quinolinol (oxine), Fe(oxine) 3, was mixed with a reversed micellar solution of cetyltrimethylammonium chloride in chloroform-cyclohexane (6:5 v/v)-water (1.0 M NaOH) containing luminol and hydrogen peroxide, was investigated.
Journal ArticleDOI
Reversed micellar-mediated luminol chemiluminescence reaction with bis(acetylacetonato)oxovanadium(IV)
Journal ArticleDOI
High enrichment method for the determination of ultra-trace levels of cobalt by liquid—liquid extraction using water/oil/water emulsions as liquid surfactant membranes
TL;DR: A high preconcentration method for the determination of cobalt by graphie furnace atomic absorption spectrometry using liquid surfactant membranes was developed in this paper, where droplets of dilute hydrochloric acid in kerosene containing 2-ethylhexylphosphonic acid mono-2-ethyl hexyl ester emulsion coated with sorbitan monooleate were dispersed in an aqueous sample solution.
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