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RECORD NUMBER: 172 OF 892

OLS Field Name OLS Field Data
Main Title Determination of Inorganic and Organotin Compounds in Sea Water by Graphite Furnace Atomic Absorption Spectrometry (Journal Version).
Author Chamasz, M. ; Winefordner, J. D. ;
CORP Author Florida Univ., Gainesville. Dept. of Chemistry.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher c1988
Year Published 1988
Report Number EPA-R-813017; EPA/600/J-88/226;
Stock Number PB89-144570
Additional Subjects Water pollution ; Tin inorganic compounds ; Tin organic compounds ; Spectrometers ; Spectrum analysis ; Toxicity ; Sea water ; Absorption spectra ; Atomic spectra ; Extraction ; Atomizing ; Hazardous materials ; Background radiation ; Zeeman effect ; Graphite composites ; Reprints ; Graphite furnace
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB89-144570 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/08/1989
Collation 8p
Abstract
Inorganic tin and organotin compounds in artificial sea water were determined at sub-p.p.b. levels. These compounds are separated from matrix elements in aqueous solutions by benzene extraction of their iodide forms from a 2M sulphuric acid-1.5M sodium iodide solution containing 1 percent m/V ascorbic acid. The organic phase was partially vaporized to pre-concentrate the analytes and was injected directly into the treated graphite tube; the signal was measured by a Zeeman atomic absorption spectrometer. Using a matrix modifier, inorganic tin could be directly determined at sub-p.p.m. levels in the presence of organotin compounds.