Metal Ion Separation And Preconcentration

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Progress In Metal Ion Separation And Preconcentration

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Author :
language : en
Publisher:
Release Date : 1998

Progress In Metal Ion Separation And Preconcentration written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.

A brief historical perspective covering the most mature chemically-based metal ion separation methods is presented, as is a summary of the recommendations made in the 1987 National Research Council (NRC) report entitled ''Separation and Purification: Critical Needs and Opportunities''. A review of Progress in Metal Ion Separation and Preconcentration shows that advances are occurring in each area of need cited by the NRC. Following an explanation of the objectives and general organization of this book, the contents of each chapter are briefly summarized and some future research opportunities in metal ion separations are presented.

Metal Ion Separation And Preconcentration

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Author : Andrew H. Bond
language : en
Publisher:
Release Date : 1999

Metal Ion Separation And Preconcentration written by Andrew H. Bond and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Medical categories.

The collection discusses the role of separations in nuclear processing, the influence and use of aqueous phases in separations, extractant design and synthesis, liquid-liquid and solid-liquid distribution, membrane separations, and supercritical fluid extractions. With a balance of fundamental and applied research, the book covers the most significant recent advances in metal ion separations.

Separation And Preconcentration Of Metal Ions From Water Using Anion Exchange Resin Loaded With Piperazinedithiocarbamate

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Author :
language : en
Publisher:
Release Date : 2008

Separation And Preconcentration Of Metal Ions From Water Using Anion Exchange Resin Loaded With Piperazinedithiocarbamate written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Ion exchange categories.

The anion exchange resin was successfully loaded with piperazinedithio- carbamate via anion exchange mechanism. The new synthesized complexing resin was characterized by IR spectroscopy. The loading capacity of complexing ligand onto resin at pH 5 during loading times of 8 min was found to be 3.5 μmol g-1. The separation of the metal ions as Ag(I), Cu(II), Pb(II) and Au(III) was studied in batch method. The optimum pHs for the sorption of Ag(I) and Cu(II) were found to be 7 and 2, respectively. The optimum pH of Pb(II) and and Au(III) of 5 was obtained. The suitable contact time of Ag(I) and Pb(II) were found to be at 15 and 20 min, respectively. While Cu(II) and Au(III) showed long sorption kinetic within 60 min. The sorption behaviors of all metal ions fit well to the Langmuir's model and the sorption capacities in the order of Pb(II) > Ag(I) > Cu(II) > Au(III) were observed with the maximum sorption capacities of 81.1, 74.2, 43.5 and 21.9 μmol g-1, respectively. For the flow system, the separation and preconcentration of Ag(I) and Pb(II) were studied. The optimum sample flow rates of Ag(I) and Pb(II) were obtained at 3.0 and 4.0 mL min-1, respectively. The elution of Ag(I) was achieved by using 5.0 mL of 0.5 mol L-1 thiourea in 1 mol L-1 HCl at the flow rate of 0.25 mL min-1 and the Pb(II) was desorbed by 5.0 mL of 0.2 mol L-1 EDTA in 0.1 mol L-1 HCl at the flow rate of 1.0 mL min-1. The preconcentration factor of 10 and 50 for Ag(I) and Pb(II) were obtained, respectively. Coexisting cations such as Na+, K+ and Ca2+ did not affect the recoveries of metal ions in comparison with cation exchange resin. The proposed method can be applied to preconcentrate Ag(I) and Pb(II) from tap water and sea water with spiked sample method before determination of Ag(I) and Pb(II) with FAAS resulting in high accuracy and precision.

Separation And Preconcentration Methods In Inorganic Trace Analysis

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Author : Jerzy Minczewski
language : en
Publisher:
Release Date : 1982

Separation And Preconcentration Methods In Inorganic Trace Analysis written by Jerzy Minczewski and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Chemistry, Analytic categories.

Sample Pretreatment And Separation

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Author : Richard G. Anderson
language : en
Publisher:
Release Date : 1987

Sample Pretreatment And Separation written by Richard G. Anderson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Science categories.

Raw samples taken for chemical analysis are unlikely to be tested in their original form. Virtually every analytical procedure calls for the sample to be pre-treated in some way. At the simplest level this may involve dissolution prior to some spectrophotometric reading; at its most complex it may involve conducting various complex extractions and derivative stages.

An Investigation Of Solid Phase Sorbents And Anion Exchange Resins For Separation And Preconcentration Of Free Metal Ions And Metal Humic Complexes In Natural Waters Prior To Determination By Inductively Coupled Plasma Mass Spectrometry

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Author :
language : en
Publisher:
Release Date : 1998

An Investigation Of Solid Phase Sorbents And Anion Exchange Resins For Separation And Preconcentration Of Free Metal Ions And Metal Humic Complexes In Natural Waters Prior To Determination By Inductively Coupled Plasma Mass Spectrometry written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.

Solid Sample Probes For Metal Pre Concentration And Matrix Separation

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Author : Cheuk-Fung Wilson Chau
language : en
Publisher: Open Dissertation Press
Release Date : 2017-01-26

Solid Sample Probes For Metal Pre Concentration And Matrix Separation written by Cheuk-Fung Wilson Chau and has been published by Open Dissertation Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-26 with categories.

This dissertation, "Solid Sample Probes for Metal Pre-concentration and Matrix Separation" by Cheuk-fung, Wilson, Chau, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4501531 Subjects: Chemical detectors Metal ions - Separation Inductively coupled plasma mass spectrometry Trace elements - Spectra

Preconcentration Separation And Determination Of Some Metal Ions Using Silica Based Ion Exchanger

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Author : randa ramadan mel-moursi
language : ar
Publisher:
Release Date : 2001

Preconcentration Separation And Determination Of Some Metal Ions Using Silica Based Ion Exchanger written by randa ramadan mel-moursi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Separation Of Metal Ions On Chelating Resin

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Author : Raymond David Szidon
language : en
Publisher:
Release Date : 1961

Separation Of Metal Ions On Chelating Resin written by Raymond David Szidon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Metal ions categories.

Fundamentals And Applications Of Anion Separations

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Author : Bruce A. Moyer
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-06-27

Fundamentals And Applications Of Anion Separations written by Bruce A. Moyer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-06-27 with Science categories.

This book documents the proceedings of the symposium "Fundamentals and Applications of Anion Separations" held during American Chemical Society National Meeting in Chicago, Illinois, August 25-30, 200I. Nearly 40 papers devoted to discussions on anion separation related to fundamental research and applications were presented. The symposium, sponsored by Osram Sylvania, BetzDearbom, and the Separation Science & Technology Subdivision of the Industrial & Engineering Chemistry Division of the American Chemical Society was organized by Bruce A. Moyer, Chemical Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Building. 4500S, Oak Ridge, TN 37831-6119, and Raj P. Singh, Chemicals and Powders R&D, Osram Sylvania, Chemical and Metallurgical Products Division, Towanda, PA 18848. It drew presenters from Australia, the Czech Republic, France, Germany, Japan, South Africa, Thailand, the United Kingdom, and the United States. Separations constitute an integral part of chemical industry. Chemical products typically originate in resources that must be concentrated and purified, chemically transformed, and subjected to fmal purification. Effluent streams from the processes must be treated to recycle reusable components and to remove environmentally harmful species. Some industrial processes are devoted to environmental cleanup after pollution has occurred. In addition, many analytical methods require a separation for preconcentration, or a separation may be an inherent part of the analysis itself. Micro separations occurring at membranes or interfaces are also related phenomena employed for ion sensing. Many species targeted for separation are naturally anionic. Although the standard separations techniques ofextraction, ion exchange, adsorption, precipitation, etc.