NDLI: Determination of rubidium and strontium in silicate rocks by energy dispersive and wavelength dispersive X-ray fluorescence analysis: a comparative evaluation of precision

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Conference report. Sixth International Symposium on Resonance Ionization Spectroscopy and Its Applications: May 24–29, 1992, Santa Fe, New Mexico, USA

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Interaction of laser radiation with solid materials and its significance to analytical spectrometry. A review

Elucidation of mechanisms that control the electrothermal atomization of tin chloride

Investigation of high temperature reactions on graphite with Rutherford backscattering spectrometry: interaction of cadmium, lead and silver with a phosphate modifier

Role of oxygen in the determination of oxide-forming elements by electrothermal atomic absorption spectrometry. Part 1. Effect of oxygen on the reactions of thallium

Flow injection–electrothermal atomic absorption spectrometry for arsenic speciation using the Fleitmann reaction

Determination of lead in biological materials by microwave-assisted mineralization and flow injection electrothermal atomic absorption spectrometry

Determination of cadmium in biological materials by tungsten coil atomic absorption spectrometry

Speciation of mercury in fish samples by solvent extraction, methyl-mercury reduction directly in the organic medium and cold vapour atomic absorption spectrometry

Determination of cadmium, cobalt, iron, nickel and lead in Venezuelan cigarettes by electrothermal atomic absorption spectrometry

Laser ablation ion trap mass spectrometry: atomic and molecular mass spectrometry of metal, ceramic and polymer samples. Plenary lecture

Atomic spectrometry in environmental analysis: jam today or jam tomorrow? Plenary lecture

Measurement of trace elements in ceramic and quartz by laser ablation microwave-induced plasma atomic emission spectrometry. Plenary lecture

On-line method for the analysis of sea-water for trace elements by inductively coupled plasma mass spectrometry. Plenary lecture

Improvement of accuracy for the determination of transient signals using the Kalman filter. Part 2. Computer controlled batch hydride generator with data acquisition and Kalman filtering for noise reduction

Determination of rubidium and strontium in silicate rocks by energy dispersive and wavelength dispersive X-ray fluorescence analysis: a comparative evaluation of precision

Determination of rare earth elements in single mineral grains by laser ablation microprobe–inductively coupled plasma mass spectrometry—preliminary study

Radiation versus conduction in heated spray chamber desolvation for inductively coupled plasmas

Application of high-resolution Fourier transform spectrometry to the study of glow discharge sources. Part 1. Excitation of iron and chromium spectra in a microwave boosted glow discharge source

Graphite furnace atomic absorption spectrometry using a linear photodiode array and a continuum source

On-line preconcentration of aluminium, gallium and indium with quinolin-8-ol for determination by atomic absorption spectrometry

Design considerations for a pressure-differential tandem source for use in atomic spectrometry

Inductively coupled plasma–microwave induced plasma tandem source for atomic emission spectrometry

Study of the matrix effect of easily and non-easily ionizable elements in an inductively coupled argon plasma. Part 1. Spectroscopic diagnostics

Study of the matrix effect of easily and non-easily ionizable elements in inductively coupled argon plasma. Part 2. Equilibrium plasma composition

Simultaneous determination of arsenic, bismuth and antimony in steels and nickel alloys by inductively coupled plasma atomic emission spectrometry with hydride generation

Automated two-speed peristaltic pump controller for reduced sample wash-out time and analysis of small sample volumes

Detection of vanadium by laser-excited atomic fluorescence spectrometry in a side-heated graphite furnace

Determination of arsenic(V) and arsenic(III) species in environmental samples by coprecipitation with zirconium hydroxide and pre-atomization atomic absorption spectrometry

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Journal of Analytical Atomic Spectrometry Vol - 8 Issue - 1

Journal of Analytical Atomic Spectrometry Vol -7

Journal of Analytical Atomic Spectrometry Vol -6

Journal of Analytical Atomic Spectrometry Vol -5

Journal of Analytical Atomic Spectrometry Vol -4

Journal of Analytical Atomic Spectrometry Vol -2

Determination of rubidium and strontium in silicate rocks by energy dispersive and wavelength dispersive X-ray fluorescence analysis: a comparative evaluation of precision

Content Provider	Royal Society of Chemistry (RSC)
Author	Webb, Peter C. Potts, Philip J. Watson, John S.
Copyright Year	1993
Abstract	Levels of precision routinely attainable in the determination of Rb and Sr at trace abundances by energy dispersive X-ray fluorescence (EDXRF) analysis are reported and compared with results obtained by wavelength dispersive X-ray fluorescence (WDXRF) analysis. Surprisingly, the precision of EDXRF determinations is similar to that for WDXRF analysis at concentrations less than about 20 ppm. The favourable characteristics of EDXRF analysis at these low concentrations are attributed to the use of a primary beam filter which reduces backgrounds in the spectral region of these elements. At higher concentrations, the precision of WDXRF results becomes progressively better than EDXRF owing to the superior sensitivity of the technique. Above 50 ppm, the relative standard deviation of WDXRF results is less than 1%. The EDXRF technique achieves comparable levels of precision only above 100 ppm. The parallel acquisition of Rb and Sr data by the ED method appears to provide no advantage in minimizing errors in the Rb:Sr ratio for which the optimum precision is required by isotope geochemists for geochronology. The precision of WDXRF measurements can be further improved by longer or multiple counting, but this procedure would be inefficient in EDXRF analysis where routine count times are already long (about 1200 s). It is noted that representative sub-sampling may not always be achieved in rock samples routinely prepared for geochemical analysis. If the highest precision is required then it is preferable to count replicate samples rather than repeatedly counting the same sample. Any form of multiple counting would not be an efficient proposition by EDXRF.
Starting Page	293
Ending Page	298
Page Count	6
File Format	PDF
ISSN	02679477
Volume Number	8
Issue Number	2
Journal	Journal of Analytical Atomic Spectrometry
DOI	10.1039/JA9930800293
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	EDXRF X-ray fluorescence Wavelength-dispersive X-ray spectroscopy Coefficient of variation Isotope Geochronology
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Analytical Chemistry

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A method of quantitative analysis of trace elements in silicate rocks by energy-dispersive X-ray fluorescence spectroscopy

Determination of strontium content in strontium carbonate used for fireworks and firecrackers based on Energy Dispersive X-ray Fluorescence Spectrometry (EDXRF）

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