A method for determination of PGE–Re concentrations and Os isotopic compositions in environmental materials

Zhao, Peipei; Li, Jie; Zhong, Ling; Sun, Shi‐Gang; Xu, Ji‐Feng

doi:10.1039/c3ay42064g

Cited by 6 publications

(6 citation statements)

References 43 publications

(69 reference statements)

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“…BCR-723 has been certified for Pt, Pd and Rh as a road dust RM by IRMM ( Zischka et al, 2002 ). This RM has been recently reported for Re, Os, Ir, Ru, Rh, Pt and Pd fractions and 187 Os/ 188 Os ratios (Table 1) ( Meisel et al, 2003b ; Zhao et al, 2014 ).…”

Section: Reference Materials For Data Quality Control Of Re-os and Pgsupporting

confidence: 85%

“…It should be noted that, although the PGE belong to the least abundant group of elements in the Earth’s crust, they may be elevated through anthropogenic influence on the environment, for example the use of automobile catalytic converters ( Meisel et al, 2003b ; Meisel and Horan, 2016 ). Consequently, as an example, the road dust has relatively high PGE content, particularly Pt, Pd (e.g., Zhao et al, 2014 ). Thus, a dust-free ultraclean lab is important for the PGE chemistry, particularly for low PGE samples.…”

Section: Chemical Separationmentioning

confidence: 99%

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Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Chu

2021

Front. Chem.

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The recent advances in analytical methods of Re-Os and PGE in geological materials including sample dissolution, chemical separation, mass spectrometric determinations, as well as the developments of matrix-matched reference materials for data quality control are thoroughly reviewed. Further, the in-situ measurement methods for Re-PGE mass fractions and 187Os/188Os ratios, as well as the measurement methods for stable isotope ratios of Re and PGE are also briefly reviewed. This review stands as a comprehensive reference for researchers to consider in the development of measurement methods for Re-PGE mass fractions and 187Os/188Os ratios in geological materials.

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Section: Reference Materials For Data Quality Control Of Re-os and Pgsupporting

confidence: 85%

Section: Chemical Separationmentioning

confidence: 99%

Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Chu

2021

Front. Chem.

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“…The other PGE concentrations are consistent with them being impurities. However, information on osmium concentrations was scarce, with only two studies in this review reporting osmium values (Qi et al 2011;Zhao et al 2014). No temporal trends were observable in the PGE data.…”

Section: Pgesmentioning

confidence: 77%

Characterisation of road-dust sediment in urban systems: a review of a global challenge

et al. 2020

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Purpose The proportion of people living in urbanised areas is predicted to rise to > 65% by 2050, and therefore, more humans than ever will be exposed to urban environmental pollution. Accumulation of organic and inorganic substances on street and road surfaces is a major global challenge requiring scientifically robust methods of establishing risk that inform management strategies. This aim of this contribution is to critically review the global literature on urban road–deposited sediment contamination with a specific focus on variability in sampling and analytical methods. Materials and methods In order to assess the concentration of contaminants in global road-deposited sediment (RDS), a comprehensive search of published RDS studies was completed. We review methodological approaches used in RDS studies to highlight the variability in datasets as a result of sampling technique, grain size fractionation, geochemical and mineralogical characterisation methods and establishing the influence of local geology on contaminant concentrations. We also consider emerging contaminants in RDS, and we provide a workflow diagram which promotes a standardised sampling and analysis regime that we believe can reduce data variability and promote collaboration when it comes to tackling the important issue of RDS contamination. Results and discussion Across the literature, Asia (except China) and Africa are underrepresented in RDS studies despite these continents having the largest and fastest growing populations, respectively. The removal of tetraethyl lead from gasoline produced a noticeable decrease in lead concentrations in global RDS, and platinum group element (PGE) concentrations in RDS were consistent with catalytic converter usage. Research into the impact of electric vehicles on non-exhaust emissions suggests other contaminants such as zinc may become more prominent in the future. Most RDS studies consider grain size fractions larger than > 20 μm due to sampling constraints despite RDS < 20 μm being most relevant to human health. The use of chemical extraction methods to establish contaminant geochemistry is popular; however, most extraction procedures are not relevant or specific to minerals identified in RDS through microscopic and spectroscopic investigations. Conclusions This review highlights considerable variability in sampling and analytical approach which makes it difficult to identify broad global patterns in RDS contamination. To remove this variability from future RDS research, this review suggests a workflow plan which attempts to improve the comparability between RDS studies. Such comparability is crucial in identifying more discrete RDS trends and informing future emission policy.

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“…The IRMM CRM BCR-723 (Pd, Pt and Rh in road dust) is widely used in supporting measurements in assessing the extent of PGE emissions from catalytic converters and new compositional data can be found in this paper. 38 Nanoparticle RMs are now required to support measurement initiatives in this growing arena. An Anglo-American university consortium 39 has described the synthesis and characterization of isotopically-labelled Ag NPs for future tracer studies.…”

Section: Reference Materials and Calibrantsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Butler

Cairns

Cook

et al. 2016

J. Anal. At. Spectrom.

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A method for determination of PGE–Re concentrations and Os isotopic compositions in environmental materials

Cited by 6 publications

References 43 publications

Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Analytical Methods for Os Isotope Ratios and Re-PGE Mass Fractions in Geological Samples

Characterisation of road-dust sediment in urban systems: a review of a global challenge

Atomic spectrometry update – a review of advances in environmental analysis

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