Source and distribution of lead in the surface sediments from the South China Sea as derived from Pb isotopes

Zhu, Laimin; Guo, Laodong; Gao, Zhiming; Yin, Geping; Liu, Ben; Wang, Fei; Xu, Jian

doi:10.1016/j.marpolbul.2010.07.026

Cited by 35 publications

(17 citation statements)

References 56 publications

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“…The average Pb concentration (43.54 ± 15.96 mg kg À1 ) in the TGR sediments was higher than that determined for sediments in the Yellow River: 8.84e28.99 mg kg À1 (Bai et al, 2012;Rui et al, 2008), Yangtze River: 25.88e42.85 mg kg À1 , South China Sea: 23.60 mg kg À1 (Zhu et al, 2010), and Jiaozhou Bay: 30.90 mg kg À1 (Xu et al, 2005) (Table S3). This is consistent with previous observations showing that, because of its proximity to large industrial areas, the surface water and sediments from the TGR were heavily polluted by trace metals, including Pb (Müller et al, 2008).…”

Section: Pb Concentrations and Spatial Distribution In The Sedimentsmentioning

confidence: 57%

“…Dissimilar to our study, an early investigation by Wang (2012) documented that Pb in several tributaries of TGR including MX, prevailed in oxidizable fractions rather than reducible fractions. As postulated by Zhu et al (2010), the content of metals bound to reducible and organic fractions varies with redox conditions. In the natural aquatic environment, the redox conditions have close connection to the hydrological events like drought, flood, or the inundation by dams (Varol, 2011;Zhao et al, 2013Zhao et al, , 2012.…”

Section: Chemical Speciation Of Pb In the Sedimentsmentioning

confidence: 88%

“…This provided evidence that the Pb in the residual fractions was from natural sources. By comparison, isotope ratios in the non-residual fractions and total digests of several sampling sites were homologous with the values of coal and aerosol in Xiamen (Zhu et al, 2010), Shanghai (Chen et al, 2005), Hong Kong (Lee et al, 2007), and Chongqing City (Bollh€ ofer and Rosman, 2001) (Table 2), but were significantly distinct from those of vehicle emissions, metallurgy dust, cement, iron ore sinter dust, and natural sources (Table 2, Fig. 6 and Fig.…”

Section: Source Identification Of Pb In Different Sediment Phasesmentioning

confidence: 90%

See 2 more Smart Citations

The characteristic of Pb isotopic compositions in different chemical fractions in sediments from Three Gorges Reservoir, China

Han

Gao

Wei

et al. 2015

Environmental Pollution

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Section: Pb Concentrations and Spatial Distribution In The Sedimentsmentioning

confidence: 57%

Section: Chemical Speciation Of Pb In the Sedimentsmentioning

confidence: 88%

Section: Source Identification Of Pb In Different Sediment Phasesmentioning

confidence: 90%

See 1 more Smart Citation

The characteristic of Pb isotopic compositions in different chemical fractions in sediments from Three Gorges Reservoir, China

Han

Gao

Wei

et al. 2015

Environmental Pollution

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] The Pb is certainly the most powerful among radiogenic elements available with respect to isotope geochemists, because it has three radiogenic isotopes whose precursors of U and Th are relatively short half-lives and are very different from each other, and the chemistry of Pb is also quite different from that of its precursors. Laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICPMS) has already been accepted as a suitable tool for precise isotopic microanalysis in solid samples at scales down to about 5 -100 μm; since the MC-ICPMS can achieve simultaneous multi-isotope measurements by its multi-collector even though the number of detector is limited.…”

Section: Introductionmentioning

confidence: 99%

Comparison of 265 nm Femtosecond and 213 nm Nanosecond Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Pb Isotope Ratio Measurements

et al. 2015

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The analytical performance of 265 nm femtosecond laser ablation (fs-LA) and 213 nm nanosecond laser ablation (ns-LA) systems coupled with multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) for Pb isotope ratio measurements of solder were compared. Although the time-resolved signals of Pb measured by fs-LA-MC-ICPMS showed smoother signals compared to those obtained by ns-LA-MC-ICPMS, similar precisions on Pb isotope ratio measurements were obtained between them, even though their operating conditions were slightly different. The mass bias correction of the Pb isotope ratio measurement was carried out by a comparison method using a Pb standard solution prepared from NIST SRM 981 Pb metal isotopic standard, which was introduced into the ICP by a desolvation nebulizer (DSN) via a dual-sample introduction system, and it was successfully demonstrated for Pb isotope ratio measurements for either NIST 981 metal isotopic standard or solder by fs-LA-MC-ICPMS since the analytical results agreed well with the certified value as well as the determined value within their standard deviations obtained and the expanded uncertainty of the certified or determined value. The Pb isotope ratios of solder obtained by ns-LA-MC-ICPMS also showed agreement with respect to the determined value within their standard deviations and expanded uncertainty. From these results, it was evaluated that the mass bias correction applied in the present study was useful and both LA-MC-ICPMS could show similar analytical performance for the Pb isotope ratio microanalysis of metallic samples such as solder.Keywords 265 nm femtosecond laser ablation (fs-LA), 213 nm nanosecond laser ablation (ns-LA), multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS), LA-MC-ICPMS, Pb isotope ratio measurements, solder

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“…Pb isotopes play an important role in tracing various geological processes; for example, the Pb isotopic compositions of rocks and minerals have been applied to distinguish the magma sources from the sources of ore-forming materials during ore deposit formation, the impact of human activities on the environment and lake sediments, and the pollution sources in the atmosphere (Chang et al, 2000;Chang and Zhu, 1997;Chang and Zhu, 2002;Chang et al, 2003;Mil-Homens et al, 2013;Novak et al, 2012;Paul et al, 2014;Walraven et al, 2013a;Walraven et al, 2013b;Walraven et al, 2014a;Walraven et al, 2014b;Wang et al, 2013;Zhang and Wen, 2012;Zhu, 1998;Zhu, 1993;Zhu et al, 2010). In the ore deposit studies, Pb and S isotopes are extensively used for source-area analysis of ore-forming processes (Ding et al, 2013;Hou et al, 2006;Jiang et al, 2006;Zhao et al, 2007).…”

mentioning

confidence: 99%

High precision in-situ Pb isotopic analysis of sulfide minerals by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry

Yuan

Yin

Liu

et al. 2015

Sci. China Earth Sci.

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An in-situ microanalysis of Pb isotopic compositions in sulfide minerals is carried out by using femtosecond laser-ablation multi-collector inductively coupled plasma mass spectrometry (fsLA-MC-ICP-MS). High-temperature-activated carbon was used to filter Hg contained in the carrier gas, which reduced the Hg background signal by 48% and also lowered the detection limit of the analysis. Fractionation and mass discrimination effects existing in the ICP-MS analytical processes were corrected using an internal reference Tl in conjunction with an external reference NIST SRM 610. The proposed method was used to analyze the Pb isotopic compositions of chalcopyrite, pyrite, and sphalerite from the Dulong Sn-Zn-In polymetallic ore district. The results showed that in this ore district, the sulfide minerals and different grains of the same sulfide mineral show a large variation in Pb content up to 1000-fold. The studied pyrites show relatively higher Pb contents and homogeneous Pb isotopic compositions, whereas the sphalerites have low Pb contents but most variable Pb isotopic compositions. It is suggested that the large variation of Pb isotopic composition may reflect a late hydrothermal superimposition on the primary sulfide formation. In addition, radiogenic Pb accumulated by radioactive decay of trace amounts of U over time in the host minerals may also be one of the causes for the large variation range of Pb content and Pb isotopic composition of those low-Pb sphalerites. Chalcopyrite and sphalerite grains with Pb content greater than 10 ppm presented a consistent Pb isotopic distribution, whereas all the sulfide grains with Pb content greater than 100 ppm had consistent Pb isotopic composition within 2s measurement uncertainties. The in-situ analysis of Pb isotopic composition agreed well with the results obtained by conventional chemical methods within 2s measurement uncertainties, indicating that the data obtained by fsLA-MC-ICP-MS are reliable. Additionally, this study indicates that the Pb isotopic composition could truthfully record the source of ore-forming minerals only for sulfide minerals with high Pb content. On the contrary, the Pb isotopic composition of low-Pb sulfide minerals may be affected by trace amounts of U in the host minerals that may lead to a highly radiogenic Pb isotope ratio. Alternatively, it is also possible that late fluid metasomatic overprinting may alter the Pb isotopic compositions. femtosecond laser ablation, MC-ICP-MS, lead isotopes, lead concentration, sulfide Citation:Yuan H L, Yin C, Liu X, et al. 2015. High precision in-situ Pb isotopic analysis of sulfide minerals by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry. Science China: Earth Sciences,

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Source and distribution of lead in the surface sediments from the South China Sea as derived from Pb isotopes

Cited by 35 publications

References 56 publications

The characteristic of Pb isotopic compositions in different chemical fractions in sediments from Three Gorges Reservoir, China

The characteristic of Pb isotopic compositions in different chemical fractions in sediments from Three Gorges Reservoir, China

Comparison of 265 nm Femtosecond and 213 nm Nanosecond Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Pb Isotope Ratio Measurements

High precision in-situ Pb isotopic analysis of sulfide minerals by femtosecond laser ablation multi-collector inductively coupled plasma mass spectrometry

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