University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Classification: Industrial -> foundry dust

Citations 2

"Determination Of Trace Elements In Power Plant Emissions By Inductively Coupled Plasma Mass Spectrometry: Comparison With Other Spectrometric Techniques"
Microchem. J. 1998 Volume 59, Issue 2 Pages 203-218
M. Bettinelli, S. Spezia, U. Baroni and G. Bizzarri

Abstract: Particulate matter in stack effluents of coal-fired plants was collected with an isokinetic probe nozzle suitable for (a) total particulate samplings on membrane filters and (b) sampling with a low volume 10-stage single orifice cascade impactor plus a backup filter. A microwave digestion method using an acid mixture of HNO3-HCl-HF in a closed vessel was developed for the determination of major, minor, and trace elements in very small amounts of sample. Analyses were carried out by inductively coupled plasma mass spectrometry (ICP-MS). A recovery study was conducted using multielemental standard solutions, NIST1633a Trace Elements in Coal Fly Ash and NIST 1648 Urban Particulate Matter, to examine the capabilities of the method. The results for real samples dissolved by this procedure were compared with results obtained by instrumental neutron activation anal., graphite furnace atomic absorption spectrometry, and flow injection hydride generation atomic absorption spectrometry. The anal. capabilities of ICP-MS make it one of the techniques of choice for the determination of trace elements in emission particulate matter collected in different granulometric particle sizes.
Aluminum Arsenic Barium Cadmium Chromium Iron Manganese Nickel Lead Antimony Vanadium Zinc Mass spectrometry Sample preparation Method comparison Reference material

"Fluorimetric Determination Of Beryllium With 3-hydroxy-2-naphthoic Acid By Flow Injection Analysis After Preconcentration On A Silica Gel Micro-column"
Collect. Czech. Chem. Commun. 1989 Volume 54, Issue 7 Pages 1777-1784
Kuban, V.;Havel, J.;Patockova, B.

Abstract: Sample solution of Be (200 ppb) in 0.1 M ammonium acetate (I) at pH 7.1 is passed through a column (4 cm x 2 mm) of silica gel (0.05 to 0.1 or 0.2 mm) pre-washed with 0.1 M I. After washing the column with water, Be is eluted with 0.1 M HCl, the eluate is mixed with 50 µM-3-hydroxy-2-naphthoic acid in 0.1 M I - 0.1 M NH3, and the fluorescence of the resulting solution is measured at 455 nm (excitation at 355 nm). The limit of determination is 10 ppb. The method was applied in the determination of Be (1 to 6%) in bronze and foundry dust. Bronze samples were dissolved in HCl - H2O2, with evaporation to dryness and dissolution in dilute HCl; dusts were dry-ashed at 550°C and the residue was dissolved in dilute HNO3.
Beryllium Sample preparation Fluorescence Silica gel Column PPB Preconcentration