Platinum analysis and speciation in urban gullypots

Chen Wei; Gregory M. Morrison

doi:10.1016/0003-2670(94)85063-1

Platinum analysis and speciation in urban gullypots

Chen Wei, Gregory M. Morrison

Chalmers University of Technology

Research output: Contribution to journal › Article › peer-review

76 Citations (Scopus)

Abstract

Concentrations of platinum in the <-μm fraction of some Swedish road sediments have been shown to increase from 3.0 ng n^-1 in 1984 to 8.9 ng g^-1 in 1991. Road sediments contained 39-88% more Pt than gullypot sediments and sequential extraction showed a distinct shift from predominantly inorganic Pt on the road surface to wholly organic Pt in the gullypot. Dissolved Pt concentrations in disturbed gullypot liquor were within the range 1.7 ng 1^-1 to 3.8 ng 1^-1 and are explained by bacterial action in teh gullypot sediment mobilizing organically bound dissolved Pt forms.

Original language	English
Pages (from-to)	587-592
Number of pages	6
Journal	Analytica Chimica Acta
Volume	284
Issue number	3
DOIs	https://doi.org/10.1016/0003-2670(94)85063-1
Publication status	Published - 10 Jan 1994
Externally published	Yes

Keywords

Catalysts
Digestion techniques
Dry ashing
Platinum
Voltammetry

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10.1016/0003-2670(94)85063-1

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AB - Concentrations of platinum in the <-μm fraction of some Swedish road sediments have been shown to increase from 3.0 ng n-1 in 1984 to 8.9 ng g-1 in 1991. Road sediments contained 39-88% more Pt than gullypot sediments and sequential extraction showed a distinct shift from predominantly inorganic Pt on the road surface to wholly organic Pt in the gullypot. Dissolved Pt concentrations in disturbed gullypot liquor were within the range 1.7 ng 1-1 to 3.8 ng 1-1 and are explained by bacterial action in teh gullypot sediment mobilizing organically bound dissolved Pt forms.

KW - Catalysts

KW - Digestion techniques

KW - Dry ashing

KW - Platinum

KW - Voltammetry

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Platinum analysis and speciation in urban gullypots

Abstract

Keywords

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