Sedimentary antimony stable isotope record of anthropogenic contamination in a karst lake in southwestern China DOI
Qianwen Deng, Xian Wu, Hui Zhang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176627 - 176627

Published: Oct. 5, 2024

Language: Английский

Mechanisms and valorization of selective adsorption of Sb(III) by amino-functionalized lignin-based porous biochar DOI Creative Commons
Wei Huang,

Zhixuan Yang,

Junguang Hu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156262 - 156262

Published: Sept. 1, 2024

Language: Английский

Citations

8
Species-specific Antimony Isotope Analysis by High Performance Liquid Chromatography Coupled with Multicollector ICPMS Using Hydride Generation as an Interface DOI
Linjie Chen,

Yuanyuan Du,

Shuyang Li

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

A novel method has been developed for the simultaneous online determination of isotopic compositions different antimony (Sb) species in a single analytical run using high-performance liquid chromatography (HPLC) coupled with multicollector inductively plasma mass spectrometry (MC-ICPMS), hydride generation (HG) serving as interface. Various parameters affecting precision Sb isotope analysis including HG conditions, transient signal processing methods and peak integration windows, were optimized. The linear regression slope 100% window provided optimal precision. Under optimized our achieved external 2SD precisions better than 0.05‰ both Sb(III) Sb(V), minimal consumption 0.5 ng 5 Sb(V). Furthermore, flow injection (FI) HG-MC-ICPMS demonstrated precise sample requirements low 0.25 ng. proposed validated by analyzing δ123Sb synthetic solutions reference materials. Additionally, it was applied to investigate fractionation during reduction Sb(V) KI, revealing preferential light isotope(121Sb). varied from -0.04- 1.18‰, fitting well Rayleigh model yielding factor (αSb(III)-Sb(V)) 0.99831. In summary, this approach enables high simultaneously reduced consumption, providing powerful tool investigating various environmental processes advancing understanding biogeochemical cycle.

Language: Английский

Citations

0
Novel Isotopic Evidence Unveils Greater Contributions of Waste Incineration to PM2.5‐Bound Antimony in Two Mega‐Cities DOI Creative Commons
Chao Zhang,

Guangyi Sun,

Yunjie Wu

et al.

Journal of Geophysical Research Atmospheres, Journal Year: 2025, Volume and Issue: 130(4)

Published: Feb. 19, 2025

Abstract PM 2.5 ‐bound antimony (Sb) may threaten human health and sustainable development, necessitating accurate source identification for its effective control. This study pioneered the application of Sb isotope signatures to trace sources, presenting first isotopic fingerprints in urban . We selected two mega‐cities with contrasting profiles: more developed Wuhan central less Guiyang southwest China. Urban both cities exhibited an ε 123 value 1.84 ± 0.79‱, a distinct seasonal pattern, that is, heavier isotopes spring/winter lighter summer/autumn. Isotopic apportionment revealed waste incineration as predominant anthropogenic cites at 34.0–39.1%, despite their massive economic industrial differences. Brake wear emerged second major source, especially Wuhan, where vehicle ownership is greater, accounting 21.2%. Complementary analyses using enrichment factor, elemental ratios, positive matrix factorization modeling, backward trajectory analysis corroborated findings. offers novel approach identify unveiling brake contributors from new perspective.

Language: Английский

Citations

0
Application of Antimony Stable Isotopes in Revealing the Source and Vertical Migration of Sb in Soil DOI
Xinyu Li, Sun Guangyi, Yu Lin

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Antimony (Sb) is a widespread contaminant that poses potential carcinogenic risks worldwide. Many countries are grappling with significant historical Sb-containing waste, leading to soil contamination, which of international concern. The lack clarity on Sb sources and migration mechanisms in limits the effective prevention control pollution. This study utilized stable isotope techniques analyze profiles from two pollution scenarios, aims quantifying sources, understanding processes, elucidating isotopic fractionation soil. results reveal surface originates primarily atmospheric dry deposition (31.7-56.3%), wet (19.6-32.7%), rock weathering (<21.0%). In subsurface soils, mainly comes solutions resulting desorption upper layers, adsorption by iron minerals, manganese (hydr-)oxides, organic matter impeding its downward movement. Deeper layers contain derived parent weathering, impacted secondary mineral adsorption. Groundwater aids influences during water-soil exchange. research introduces novel framework for quantitatively tracking enhances scientific geochemical behavior

Language: Английский

Citations

0
Identification of the sources and migration of antimony in karst terraces via Sb stable isotopes DOI
Yunjie Wu, Sun Guangyi, Yu Lin

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 138570 - 138570

Published: May 1, 2025

Language: Английский

Citations

0
Gold Copper-1,3,5-Benzene Dicarboxylate (Cu-BTC) Nanocomposite as an Electrochemical Sensor for Antimony Speciation by Square Wave Anodic Stripping Voltammetry (SWASV) DOI

Ao-Lan Shu,

Yong Kang, Yao Liu

et al.

Analytical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17

Published: May 19, 2025

Language: Английский

Citations

0
Antimony(V) sorption and coprecipitation with ferrihydrite: An examination of retention mechanisms and the selectivity of commonly-applied extraction procedures DOI Creative Commons

Mona Hosseinpour Moghaddam,

N. Karimian, Scott G. Johnston

et al.

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136297 - 136297

Published: Oct. 25, 2024

Language: Английский

Citations

2
Weathering-induced Sb isotope fractionation during leaching of stibnite and formation of secondary Sb minerals DOI Creative Commons
A. Kaufmann, Marina Lazarov,

I. Horn

et al.

Chemical Geology, Journal Year: 2024, Volume and Issue: 662, P. 122253 - 122253

Published: June 25, 2024

In this work, we investigated the extent of antimony (Sb) isotopic fractionation during weathering stibnite at supergene conditions. Antimony isotope data have been obtained from secondary Sb minerals collected Pezinok, Dobšiná (both Slovakia) and Allchar (North Macedonia) deposits mine tailings. The compositions sulfides formed on primary [Sb2S3] or in tailings grains were compared with each other. Furthermore, experimentally leaching different acids. Our study reveals a large range for δ123Sb (from −0.50 to +0.69 ‰) minerals. They are either isotopically indistinguishable lighter than stibnite. Isotopically products likely by quantitative transfer minerals, such as brandholzite [Mg(H2O)6[Sb(OH)6]2] Pezinok. Isotopic towards was observed adsorption onto iron oxides. Distinctly tripuhyite [FeSbO4], chapmanite [Fe3+2Sb3+(Si2O5)O3(OH)], hydroxyferroromeite [Fe2Sb2O6(OH)], stibiconite [Sb3O6OH] that replace pore solutions. These generated partial precipitation aqueous solutions produced dissolution experiments HCl oxalic acid, leached without significant effects first 2–3 days, followed drop dissolved concentration associated high leachate (by up 0.5 after 4–7 days. We interpret these observations be related oxides low δ123Sb, resulting an heavy pool. findings agreement previous results groundwater drainage water > +0.36 ‰ may suggest 'truly' (operationally defined <0.45 μm) fraction general heavy.

Language: Английский

Citations

1
Sedimentary antimony stable isotope record of anthropogenic contamination in a karst lake in southwestern China DOI
Qianwen Deng, Xian Wu, Hui Zhang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 954, P. 176627 - 176627

Published: Oct. 5, 2024

Language: Английский

Citations

0