Determination of tetraalkyllead compounds in gasoline by liquid chromatography: atomic absorption spectrometry. [Tetramethyllead, trimethylethyllead, dimethyldiethyllead, methyltriethyllead, tetraethyllead]

Journal Article · Tue Sep 01 04:00:00 EDT 1981 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00234a020· OSTI ID:6041338

Messman, J D; Rains, T C

A liquid chromatography-atomic absorption spectrometry (analytical t-AAS) hybrid analytical technique is presented for metal speciation measurements on complex liquid samples. The versatility and inherent metal selectivity of the technique are illustrated by the rapid determination of five tetraalkyllead compounds in commercial gasoline. Separation of the individual tetraalkyllead species is achieved by reversed-phase liquid chromatography using an acetonitrile/water mobile phase. The effluent from the liquid chromatograph is introduced directly into the aspiration uptake capillary of the nebulizer of an air/acetylene flame atomic absorption spectrometer. Spectral interferences due to coeluting hydrocarbon matrix constituents were not observed at the 283.3-nm resonance line of lead used for analysis. Detection limits of this LC-AAS hydrid analytical technique, based on a 20-..mu..L injection, are approximately 10 ng Pb for each tetraalkyllead compound.

• Research Organization: National Bureau of Standards, Washington, DC
• OSTI ID: 6041338
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 53:11; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
400105 -- Separation Procedures
ABSORPTION SPECTROSCOPY
CHEMICAL ANALYSIS
CHROMATOGRAPHY
FUELS
GASOLINE
LEAD COMPOUNDS
LIQUID COLUMN CHROMATOGRAPHY
LIQUID FUELS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PETROLEUM PRODUCTS
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECTROSCOPY
TEL