Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 791

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Book Description

Author: Hugh A. McKenzie
Publisher: Elsevier Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 812

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Book Description
The understanding of the functions of trace elements in metabolism, whether associated with microorganisms, plants or animals, has advanced considerably during the last twenty years. There are two main aspects of the importance of trace elements in biological materials: first, their toxic effects and secondly, the essential nature of some of the elements for normal growth and health. Research in trace elements and their essential role in biological processes has advanced through several stages, necessitating more and more effective methods of determination. Despite the marked improvements in methods of trace analysis during these twenty years, the ever increasing need for higher sensitivity to meet new demands has meant the greater need, not only for improving the limits of detection, but also for new standard reference materials, better sampling, better sample handling and better design of trace and ultra-trace analysis laboratories. This book focusses on all areas of trace element determination with detailed discussion on all major methods of analysis. Additionally, the determination of concentrations of major toxic and essential trace elements is discussed at length.

Author: Hugh A. MacKenzie
Publisher:
ISBN:
Category :
Languages : en
Pages : 791

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Book Description

Author: G. Venkatesh Iyengar
Publisher: CRC Press
ISBN: 1000098591
Category : Science
Languages : en
Pages : 272

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Book Description
Despite the development of innovative new analytical techniques for biological trace element research, today's trace element investigators face formidable obstacles to obtaining reliable data. This complete reference identifies and assesses the challenges the analyst encounters at each stage of an analysis, and discusses the effects of various techniques on the sample. Three internationally recognized scientists and authors consider the effects of the numerous collection, storage, and sample preparatory techniques used in sample analysis. Proper analytical quality control, including such critical factors as sampling and sample preparation, specimen preservation and storage, and ashing, is examined. The book also looks at sample preparation methods unique to various instruments and speciation chemistry issues, and examines the link between chemical analysis and specimen banking. A previously unrecognized source of error, presampling factors, is also discussed.

Author: L. R. P. Butler
Publisher: Elsevier
ISBN: 1483145875
Category : Science
Languages : en
Pages : 112

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Book Description
The Analysis of Biological Materials: The Proceedings of a Conference Held in Pretoria, South Africa October 1977 by the Spectroscopic Society of South Africa focuses on the applications, processes, and methodologies involved in the analysis of biological materials. The compilation first offers information on the contributions of the analysis of biological materials in medical diagnosis and treatment and development of atomic absorption spectroscopic techniques in biological analysis. Topics include applications of biological tissues analysis in medical research; physics and chemistry in medicine; complexing characteristics and in vivo roles of metals; and metals in the treatment of disease. The book then takes a look at microprobe analysis of pathological tissues, including specimen preparation and microprobe analysis investigation. The publication discusses the application of ion microprobe mass analyzer to the analysis of biological materials; multi-element analysis of teeth and other biological materials by instrumental neutron activation; and single column gradient elution ion exchange amino acid analyzer. The text also examines biographical materials of oceanographic origin and volatile metals in biological materials. The compilation is a dependable reference for readers interested in the analysis of biological materials.

Author: R.F.M. Herber
Publisher: Elsevier
ISBN: 0080875637
Category : Science
Languages : en
Pages : 591

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Book Description
The major theme of this book is analytical approaches to trace metal and speciation analysis in biological specimens. The emphasis is on the reliable determination of a number of toxicologically and environmentally important metals. It is essentially a handbook based on the practical experience of each individual author. The scope ranges from sampling and sample preparation to the application of various modern and well-documented methods, including quality assessment and control and statistical treatment of data. Practical advice on avoiding sample contamination is included. In the first part, the reader is offered an introduction into the basic principles and methods, starting with sampling, sample storage and sample treatment, with the emphasis on sample decomposition. This is followed by a description of the potential of atomic absorption spectrometry, atomic emission spectrometry, voltammetry, neutron activation analysis, isotope dilution analysis, and the possibilities for metal speciation in biological specimens. Quality control and all approaches to achieve reliable data are treated in chapters about interlaboratory and intralaboratory surveys and reference methods, reference materials and statistics and data evaluation. The chapters of the second part provide detailed information on the analysis of thirteen trace metals in the most important biological specimens. The following metals are treated in great detail: Aluminium, arsenic, cadmium, chromium, copper, lead, selenium, manganese, nickel, mercury, thallium, vanadium and zinc. The book will serve as a valuable aid for practical analysis in biomedical laboratories and for researchers involved with trace metal and species analysis in clinical, biochemical and environmental research.

Author: James F. Lawrence
Publisher: Elsevier
ISBN: 1483264068
Category : Science
Languages : en
Pages : 318

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Book Description
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.

Author:
Publisher: Bernan Press(PA)
ISBN:
Category : Business & Economics
Languages : en
Pages : 384

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Book Description

Author: Robert K. Boyd
Publisher: John Wiley & Sons
ISBN: 1119964393
Category : Science
Languages : en
Pages : 1179

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Book Description
This book provides a serious introduction to the subject of mass spectrometry, providing the reader with the tools and information to be well prepared to perform such demanding work in a real-life laboratory. This essential tool bridges several subjects and many disciplines including pharmaceutical, environmental and biomedical analysis that are utilizing mass spectrometry: Covers all aspects of the use of mass spectrometry for quantitation purposes Written in textbook style to facilitate understanding of this topic Presents fundamentals and real-world examples in a ‘learning-though-doing’ style

Author: Arthur J. Ahearn
Publisher: Elsevier
ISBN: 0323140734
Category : Science
Languages : en
Pages : 475

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Book Description
Trace Analysis by Mass Spectrometry deals with trace analysis of solids and liquids by mass spectrometric techniques. Topics include the physics and techniques of electrical discharge ion sources, transmission of ions through double focusing mass spectrometers, and detection and measurement of ions by ion-sensitive plates. The ion sources used are principally electrical discharge type sources. This book is comprised of 14 chapters. The first several chapters focus on the basic physics of electrical discharge ion sources, double focusing mass spectrometry, and the measurement of arrays of mass resolved ion beams by electrical detection methods and with ion sensitive emulsions. The discussion then shifts to the problem of obtaining the chemical composition of the recorded mass resolved ion sample and relating this composition to that of the original sample. The chapters that follow describe specific techniques for analyzing special samples such as insulators, powders, microsamples, biological materials, reactive and low melting point substances, radioactive materials, and gases in solids. The remaining chapters include the use of laser ion sources in the analysis of solids and the analysis of surfaces particularly with sputter ion sources. This book will be of interest to students and practitioners of physics and chemistry.