Atmospheric speciation and wet deposition of alkyllead compounds

Allen, Andrew G.; Radojević, Miroslav; Harrison, Roy M.

doi:10.1021/es00170a005

Cited by 45 publications

(19 citation statements)

References 18 publications

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“…Actually, it was found that inorganic lead is more efficiently scavenged from the atmosphere than is the organic lead (Allen et al, 1988).…”

Section: Rainwatermentioning

confidence: 99%

Distribution of total and organic lead in the Šibenik region (Eastern Adriatic)

Branica

1992

Chemical Speciation & Bioavailability

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The distribution of inorganic and organic lead species in atmospheric and surface waters from the Sibenik area (central part of the Eastern Adriatic coast) was investigated. The concentration range of lead compounds in rainwater was 12,000 to 57,000 ng Pb L-1 for total lead, and 10 to 96 ng Pb L-1 for ionic alkyllead compounds (mostly in the form of trialkyl derivatives). In seawater, trialkyllead compounds were detected in concentration from <0.5 to 12.5 ng Pb-1 L, which represented 0.5 to 6.8% of the total lead. These results were compared with data obtained elsewhere, and the influence of lead compounds emitted from leaded gasoline (from automobiles and gasoline stations) on the adjacent water body is elucidated.

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“…Actually, it was found that inorganic lead is more efficiently scavenged from the atmosphere than is the organic lead (Allen et al, 1988).…”

Section: Rainwatermentioning

confidence: 99%

Distribution of total and organic lead in the Šibenik region (Eastern Adriatic)

Branica

1992

Chemical Speciation & Bioavailability

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“…Filters, solid adsorbents such as Tenax, Porapak Q, and Amberlites, water-filled gas bubblers, and cryogenic traps have all been used to extract organolead compounds from atmospheric aerosol and gas phases [108,109,128,129]. Because of the possibility of decomposition of TAL compounds in the presence of ozone, a layer of ferrous sulphate is normally placed before to the trap [129].…”

Section: Air Samplesmentioning

confidence: 99%

Speciation of mercury, tin, and lead compounds by gas chromatography with microwave-induced plasma and atomic-emission detection (GC–MIP–AED)

Pereiro

Díaz

2001

Anal Bioanal Chem

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Because of their high toxicity and widespread distribution, the reliable selective quantification of alkyl and aryl species containing mercury, tin, or lead has been one of the goals of speciation analysis in recent years. Since becoming commercially available, GC-MIP-AED has been one of the most-used tools in this work. In this paper, the value and limitations of GC-MIP-AED for the speciation of Hg, Sn, and Pb compounds in environmental samples are reviewed and compared with the analytical characteristics of other hyphenated GC-based techniques. Because quantification of Hg, Sn, and Pb species by GC techniques normally requires complex sample preparation involving several steps, the effect of sample-preparation methods on the accuracy and precision of the results is discussed. Finally, we describe the current status of a rapid, low-cost GC-MIP-PED system specifically designed for routine quantification of Hg, Sn, and Pb species in environmental control laboratories.

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“…The ionic alkyllead species may be easily extracted from water samples into organic solvents after complexation with diethyldithiocarbamate (DDTC) [13,15,16,18,46,[51][52][53][54][55][56][57][58], tetraethylenedithiocarbamate (TMDTC) [59] or dithizone [58][59][60], hexane and pentane being particularly suitable. The chelating agents are used in combination with EDTA, to prevent co-extraction of inorganic lead.…”

Section: Sample Pretreatmentmentioning

confidence: 99%

“…Both packed and capillary columns have been used. Packed columns usually filled with Chromosorb W containing a 3-10% loading of OV-101 [8, 13,37,46,52,54,55] or Carbowax [201 are the most widely used. They can be conveniently cleaned and have large sample capacity.…”

Section: Gas Chromatographymentioning

confidence: 99%