The determination of tetraalkyl lead in air by a denuder diffusion technique.
A diffusion method for the selective determination of tetraalkyl lead (TAL) in air is proposed. Separation from inorganic lead takes place on an ICl-coated annular denuder, where only TAL is removed during sampling. A differential technique making use of two denuders in series prevents any interference from particulate lead. Analysis of denuder acid extracts by flameless atomic absorption spectrometry provides a direct measure of organic lead thus avoiding a complex solvent extraction procedure.
A
A
Febo
V
V
Di Palo
M
M
Possanzini
D000393:Air Pollutants / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods; D004058:Diffusion; D005742:Gasoline; D008834:Microclimate; D009942:Organometallic Compounds / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000379:methods; D013756:Tetraethyl Lead / Q000031:analogs & derivatives / Q000032:analysis*; D001335:Vehicle Emissions / Q000032:analysis
D000393:Air Pollutants; D005742:Gasoline; D009942:Organometallic Compounds; D001335:Vehicle Emissions; C009557:tetraalkyl lead; D013756:Tetraethyl Lead