Platinum analysis and speciation in urban gullypots

Chen, Wei; Morrison, Gregory M.

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

Cited by 77 publications

(52 citation statements)

References 8 publications

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“…Therefore we investigated the influence of microorganisms on the dissolution of metallic platinum [13] in a first attempt and found that the transformation is mainly of chemical nature and not influenced by bacteria as suggested elsewhere [6,14]. Further analytical attempts concerning the characterization of Pt species in aqueous soil extracts with RP-HPLC-ICP-MS and CE-ICP-MS indicated the presence of inorganic and organometallic Pt species, presumably platinum humic acid complexes [15].…”

mentioning

confidence: 87%

Dissolution of metallic platinum as water soluble species by naturally occurring complexing agents

et al. 1998

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Abstract. Platinum is released into the environment as a result of surface abrasion from automobile catalysts during operation. Previous investigations showed that this finely dispersed metallic platinum is dissolved in organic matrices, e.g. a humic soil to a significantly high degree, resulting in possibly bioavallable Pt species. In this work several natural complexing agents (adenosine, ADP, ATP, L-His, humic acid fraction, LMet, pyrophosphate, and triphosphate) were treated with metallic platinum (as Pt black and as a Pt(0) containing tunnel dust) for 3-60 d. Some of the compounds used dissolved Pt(0) to a recognizable degree, whereas others were in the range of the aqueous blanks. Comparison of Pt black with a natural dust sample showed that L-methionine had in both cases the greatest effect after 60 d. Generally more Pt(0) was dissolved in the dust sample (finer dispersion and smaller particle size) than in the Pt-black used. By carrying out the experiment under natural conditions instead of in pure oxygen-, the amounts of dissolved platinum are about one order of magnitude lower.

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confidence: 87%

Dissolution of metallic platinum as water soluble species by naturally occurring complexing agents

et al. 1998

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“…Gunawardana et al (2012) b Herngren et al (2006) The concentrations of metals associated with the various particle size fractions have been determined by several researchers. In an early study, Wei and Morrison (1994) found the expected decreasing concentrations of Pb and Pt with increasing particle size over the size ranges <63 µm, 63-125 µm, 125-1000 µm and an associated increasing toxicity with decreasing particle size. Although reporting low metal contamination, Herngren et al, (2006) found that more than half of the total metal concentrations in a car park dust were in the particles finer than 75 µm.…”

Section: Accumulation Of Particulates/solidsmentioning

confidence: 99%

The sources, impact and management of car park runoff pollution: A review

Revitt

Lundy

Coulon

et al. 2014

Journal of Environmental Management

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Traffic emissions contribute significantly to the build-up of diffuse pollution loads on urban surfaces with their subsequent mobilisation and direct discharge posing problems for receiving water quality. This review focuses on the impact and mitigation of solids, metals, nutrients and organic pollutants in the runoff deriving from car parks. Variabilities in the discharged pollutant levels and in the potentials for pollutant mitigation complicate an impact assessment of car park runoff. The different available stormwater best management practices and proprietary devices are reported to be capable of reductions of between 20% and almost 100% for both suspended solids and a range of metals. This review contributes to prioritising the treatment options which can achieve the appropriate pollutant reductions whilst conforming to the site requirements of a typical car park. By applying different treatment scenarios to the runoff from a hypothetical car park, it is shown that optimal performance, in terms of ecological benefits for the receiving water, can be achieved using a treatment train incorporating permeable paving and bioretention systems. The review identifies existing research gaps and emphasises the pertinent management practices as well as design issues which are relevant to the mitigation of car park pollution.

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“…Among the first works, very interesting seems to be the survey regarding the speciation of organic and inorganic platinum in road sediments [83].…”

Section: Sediments and Soilsmentioning

confidence: 99%

Voltammetric Analysis of Trace Levels of Platinum Group Metals – Principles and Applications

Locatelli

2007

Electroanalysis

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The compelling use of autocatalytic converters, containing platinum group metals (PGMs), has been the cause, in the environmental and biological matrices, of an increasing concentration of such metals. For this reason, in the last decade, the literature has reported several papers regarding analytical procedures for the determination of Pt(II), Pd(II) and Rh(III) in real samples, generally employing spectroscopic methods. The present review intends to highlight the contribution of the voltammetric techniques for the determination of these metals, including also those less investigated, i.e. Iridium, Osmium and Ruthenium.

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Platinum analysis and speciation in urban gullypots

Cited by 77 publications

References 8 publications

Dissolution of metallic platinum as water soluble species by naturally occurring complexing agents

Dissolution of metallic platinum as water soluble species by naturally occurring complexing agents

The sources, impact and management of car park runoff pollution: A review

Voltammetric Analysis of Trace Levels of Platinum Group Metals – Principles and Applications

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