Development and Characterization of Tandem Plasma Sources for Direct Solids Analysis Via Atomic Emission Spectrometry PDF Download
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Author: Fu-He Li
Publisher:
ISBN:
Category : Atomic emission spectroscopy
Languages : en
Pages : 646
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Book Description
Author: Fu-He Li
Publisher:
ISBN:
Category : Atomic emission spectroscopy
Languages : en
Pages : 646
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Book Description
Author: R. N. Savage
Publisher:
ISBN:
Category :
Languages : en
Pages : 34
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Book Description
A miniature inductively coupled plasma source for atomic emission spectrometry is described and a preliminary evaluation of its analytical capabilities is presented. The mini-ICP is very economical to sustain and works well with less than 1 kW of RF power and 8L/min of argon coolant gas. In addition, the new source possesses some unique operating characteristics which simplify sample introduction. In this paper, detection limits, multi-element capabilities, and other analytical features of the mini-ICP are compared with those demonstrated by a conventional ICP source and shown to be comparable. In addition, the two plasmas are shown to exhibit similar excitation temperatures in the respective analyte observation regions (i.e., plasma tail flames). These results suggest that the mini-ICP possesses the same desirable atomization and excitation characteristics as conventional ICP sources. (Author).
Author: John R. Dean
Publisher: John Wiley & Sons
ISBN: 0470093501
Category : Science
Languages : en
Pages : 208
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Book Description
The book provides an up-to-date account of inductively coupled plasmas and their use in atomic emission spectroscopy and mass spectrometry. Specific applications of the use of these techniques are highlighted including applications in environmental, food and industrial analysis. It is written in a distance learning / open learning style; suitable for self study applications. It contains contain self-assessment and discussion questions, worked examples and case studies that allow the reader to test their understanding of the presented material.
Author: David Patrick Myers
Publisher:
ISBN:
Category :
Languages : en
Pages : 638
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Book Description
Author: Daniel John Churella
Publisher:
ISBN:
Category : Plasma spectroscopy
Languages : en
Pages : 474
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Book Description
Author: R. Kenneth Marcus
Publisher: Wiley
ISBN: 0470857862
Category : Science
Languages : en
Pages : 498
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Book Description
This multi-author, edited volume includes chapters which deal with both basic and highly complex applications. Glow discharge devices are now being used in very novel ways for the analysis of liquids and gases, including molecular species detection and identification, an area that was beyond the perceived scope of applicability just ten years ago. It is expected that the next decade will see a growth in the interest and application of glow discharge devices far surpassing the expectations of the last century. Responding to the rapid growth in the field Includes both GD-MS and GD-AES In-depth coverage of applications Co-edited by the top names in the field in Europe and US, with high calibre contributions from around the world
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 6
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Book Description
In this project, new high temperature plasmas and new sample introduction systems are developed for rapid elemental and isotopic analysis of gases, solutions, and solids using atomic emission spectrometry (AES) and mass spectrometry (MS). These devices offer promise of solving singularly difficult analytical problems that either exist now or are likely to arise in the future in the various fields of energy generation, environmental pollution, nutrition, and biomedicine. Emphasis is being placed on: (a) generation of annular, helium inductively coupled plasmas (He ICPs) that are suitable for atomization, excitation, and ionization of elements possessing high excitation and ionization energies, with the intent of enhancing the detecting powers of a number of elements, (b) computer modelings of ICP discharges to predict the behavior of new and existing plasmas, (c) diagnostic studies of high-temperature plasmas and sample introduction systems to quantify their fundamental properties, with the ultimate aim to improve analytical performance of atomic spectrometry, (d) development and characterization of new, low-cost sample introduction systems that consume microliter or microgram quantities of samples, and (e) investigation of new membrane separators for stripping solvent from sample aerosol to reduce various interferences and to enhance sensitivity and selectivity in plasma spectrometry. 9 refs.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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Book Description
The development of plasma sources with densities and temperatures in the 1015-1017 cm−3 and 1-10eV ranges which are slowly varying over several hundreds of nanoseconds within several cubic centimeter volumes is of interest for applications such as intense electron beam focusing as part of the x-ray radiography program. In particular, theoretical work [1,2] suggests that replacing neutral gas in electron beam focusing cells with highly conductive, pre-ionized plasma increases the time-averaged e-beam intensity on target, resulting in brighter x-ray sources. This LDRD project was an attempt to generate such a plasma source from fine metal wires. A high voltage (20-60kV), high current (12-45kA) capacitive discharge was sent through a 100 [mu]m diameter aluminum wire forming a plasma. The plasma's expansion was measured in time and space using spectroscopic techniques. Lineshapes and intensities from various plasma species were used to determine electron and ion densities and temperatures. Electron densities from the mid-1015 to mid-1016 cm−3 were generated with corresponding electron temperatures of between 1 and 10eV. These parameters were measured at distances of up to 1.85 cm from the wire surface at times in excess of 1 [mu]s from the initial wire breakdown event. In addition, a hydrocarbon plasma from surface contaminants on the wire was also measured. Control of these contaminants by judicious choice of wire material, size, and/or surface coating allows for the ability to generate plasmas with similar density and temperature to those given above, but with lower atomic masses.
Author: José A. C. Broekaert
Publisher: John Wiley & Sons
ISBN: 3527606777
Category : Science
Languages : en
Pages : 432
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Book Description
This completely revised second edition of the standard work has been expanded by some twenty percent to include more information on the latest developments and new apparatus. In particular, sections have been added on microplasmas and new types of spectrometers, while that on the rapidly expanding field of speciations with practical examples from life and environmental sciences have been included. Still in one handy volume, the book covers all the important modern aspects of atomic fluorescence, emission and absorption spectroscopy as well as plasma mass spectroscopy in a readily comprehensible and practice-oriented manner. A thorough explanation of the physical, theoretical and technical basics, example applications including the concrete execution of analysis and comprehensive cross-references to the latest literature allow even newcomers easy access to the methodologies described.
Author: Benjamin Charles Masters
Publisher:
ISBN:
Category :
Languages : en
Pages : 220
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Book Description
