Results 261 to 270 of about 28,725 (311)

Atomic Spectrometry Update—Inorganic Mass Spectrometry and X-ray Fluorescence Spectrometry

J. Anal. At. Spectrom., 1988
This year's Update includes an extended mass spectrometry section based on full abstracts and covering fully this extensive area of analysis. The newly introduced instrumentation for Glow discharge MS and the combined MS techniques are particularly notable this year. The ICP-MS section continues to grow in line with the increasing number of instruments
John G. Williams, Jeffrey R. Bacon, Andrew T. Ellis   +2 more
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NON-FLAME CELLS IN ATOMIC FLUORESCENCE SPECTROMETRY

Pure and Applied Chemistry, 1970
Abstract
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A New, simple atom reservoir for atomic fluorescence spectrometry

Analytica Chimica Acta, 1969
Abstract The disadvantages of flames as atomizers are summarized, and a new, simple and efficient means of atomization of samples is proposed. The solution on a platinum loop is vaporized by electrical heating into an argon stream. Limits of detection were 10-14 g for cadmium, 10-8 g for mercury, and 10-7 g for gallium. Linear calibration graphs were
J.D. Winefordner, M.P. Bratzel, R. M. Dagnall   +2 more
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Studies in atomic fluorescence spectrometry

Analytica Chimica Acta, 1975
Abstract A method has been developed for the determination of tin in steel based on the atomic fluorescence of tin at the 303.4-nm line in an argon-separated air-acetylene flame (detection limit 0.05 p.p.m.) or argon-oxygen-hydrogen flame (detection limit 0.01 p.p.m.).
D.P. Hubbard, Robert G. Michel, L. Ebdon
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Interferences in hydride atomization studied by atomic absorption and atomic fluorescence spectrometry

Spectrochimica Acta Part B: Atomic Spectroscopy, 1996
Abstract A hydride atomizer able to operate in the flame-in-tube mode and in the miniature diffusion flame mode was used to investigate interferences of arsenic in selenium atomization. A twin-channel continuous flow hydride generator was utilized to eliminate liquid phase interferences.
D'Ulivo Alessandro, Dedina Jiri
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[18] Atomic fluorescence spectrometry

1988
Publisher Summary Two practical approaches to atomic fluorescence are described in this chapter. The first concerns hollow cathode lamp excited AFS in the ICP. The second concerns the determination of mercury by cold vapor atomic fluorescence spectrometry.
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Atomic-fluorescence and atomic-absorption spectrometry for chemical analysis

The Analyst, 1974
Atomic-absorption spectroscopy, which was first described in the literature in 1955, has now become widely accepted as a trace technique for the analysis of most metals. However, atomic fluorescence, which was first described in 1964, has not yet found widespread use.
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Progress in laser excited atomic fluorescence spectrometry

TrAC Trends in Analytical Chemistry, 1998
Abstract Laser excited atomic fluorescence spectrometry, LEAFS, is a high sensitivity, high selectivity, atomic spectrometric technique. This paper reviews progress in LEAFS over the last several years, with emphasis on new lasers, new detectors, modifications to atomizers, and multi-element measurement approaches.
Peter Stchur, Karl X. Yang, Robert G. Michel, Xiandeng Hou   +3 more
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Atomic fluorescence spectrometry of mercury: principles and developments

Spectrochimica Acta Part B: Atomic Spectroscopy, 1995
Abstract Atomic fluorescence spectrometry (AFS) of mercury is very sensitive and the AFS system is an excellent detector for mercury analysis. The first part of this review covers the principles of determination of mercury by AFS. The second part delineates the loss and increase of mercury through its transfer between the gas and solution phases. The
Hideyoshi Morita, Hideji Tanaka, Shigeru Shimomura   +2 more
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Resonance monochromator in atomic-absorption and atomic-fluorescence spectrometry

Journal of Applied Spectroscopy, 1986
The purpose of this study was to find a means of realizing the potential possibilities of a resonance monitor in atomic-flourescence and atomic absorption spectrometry by eliminating intrinsic radiation. The atomic beam was obtained by using a furnace situated in a volume evacuated to 1.3.10/sup -3/ Pa.
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