[PDF] The Determination Of The Effects Of Humics On The Preconcentration Of Trace Elements From Water eBook

Author : T.R. Crompton
Publisher : CRC Press
Page : 734 pages
File Size : 30,13 MB
Release : 2002-10-31
Category : Science
ISBN : 1482264773

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Equipment used for the analysis of water is frequently insufficiently sensitive to be able to detect the low concentrations of organic and inorganic substances present in samples. Applying preconcentration to the sample prior to analysis means the results gained are more accurate and can be used to report trends more effectively. Each chapter of Pr

Author : Zeev Alfassi
Publisher : CRC Press
Page : 490 pages
File Size : 37,91 MB
Release : 1991-12-07
Category : Science
ISBN : 9780849352133

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Accurate determination of trace elements is critical in various fields of science and technology. Direct measurement of trace elements in samples with complex matrices is often impractical, either due to analytical sensitivity limitations or matrix interferences. Preconcentration procedures are generally needed to eliminate matrix interferences and/or enrich minute amounts of analytes to a level for reliable measurements. Preconcentration Techniques for Trace Elements provides up-to-date information on various preconcentration techniques and detailed discussions regarding such topics as the dissolution of matrices, coprecipitation, solvent extraction, electrochemical means, ion exchange, sorption, chromatographic methods, flotation, membranes, volatization, polymer foam sorbents, fire assay, isotachophoresis, and filter papers. This comprehensive volume, featuring contributions from 21 experts from nine countries, will provide valuable reference material for all scientists and technicians dealing with trace analysis of real-world samples.

Author : James F. Lawrence
Publisher : Elsevier
Page : 318 pages
File Size : 45,17 MB
Release : 2013-10-22
Category : Science
ISBN : 1483264068

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Trace Analysis, Volume 4 presents critical discussions of selected topics in organic and inorganic analytical chemistry including instrumentation, techniques, and applications to the detection, identification, and quantitation of trace quantities of substances in a large variety of sample materials. The volume is directed towards topics in the trace analysis of biological materials and environmental samples. Chapters are devoted to discussions on developments and applications of ion-selective polymeric membrane electrodes for biological tissues and fluids; evaluation of X-ray emission spectroscopy for trace analysis; the use of solid adsorbents for pre-concentrating trace organic substances, mainly pollutants, from air; and comparison of neutron activation analysis and proton-induced X-ray emission spectroscopy for the determination of trace elements in rain and snow. Organic and inorganic chemists, medical technicians, and ecologists will find the book a good reference material.