Rapid and Sensitive Speciation of Inorganic Iodine in Groundwater by IC-ICP-MS With Ar-CH4 Mixed Plasma

Guo, Wei; Hu, Shenghong

doi:10.46770/as.2016.01.002

Cited by 8 publications

(1 citation statement)

References 22 publications

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“…The determination of alkalinity, major components, and trace elements in the groundwaters followed the methods described by Li et al 6 Direct quantification of groundwater organic I with high-performance liquid chromatography−inductively coupled plasma−mass spectrometry (HPLC-ICP-MS, Dionex ICS-1500 + Agilent 7700) remained a challenge in the course of groundwater analysis, and thus the difference between total and inorganic I was calculated to be the organic I. 34 This is acceptable when other intermediate I species were insignificant in the groundwater, as verified by the modeling results shown below.…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal Variability of Groundwater Iodine in the Northern Arid Basins: Significance for Safe Water Supply

Xie

et al. 2022

Environ. Sci. Technol.

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The genesis of geogenic iodine (I)-contaminated groundwater poses a significant threat to long-term water exploitation. Safe and sustainable water supply, particularly in the northern arid basins, demands a quantitative prediction of the high variability of I distribution over hydrogeological timescales. Here, bioenergetics-informed reactive transport modeling was combined with high-resolution molecular characterization of fueling organic matter to decipher the time-controlled interactions between vertical flow and (bio)geochemical processes in I transport within the Datong aquifers. The declining reactivities of I-bearing organic matter and Fe oxides in the 15−40 m depth decreased the rate of I release, while a growing number of pore volumes flushed through the aquifers to leach out I − and organic I. This removal effect is compensated by the desorption of I − from Fe oxides and secondary FeS generated from the concurrent reduction of Fe oxides and SO 4 2− . Consequently, peak concentrations of groundwater I − may have appeared, depending upon the vertical recharge rate, at the first several pore volumes flushed through the aquifers. The current vertical distributions of the various I species likely represent a quasisteady state between I mobilization and leaching. These new mechanistic insights into the dynamic hydrogeological− (bio)geochemical processes support secure groundwater use in the I-affected northern arid basins.

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Section: Methodsmentioning

confidence: 99%

Spatiotemporal Variability of Groundwater Iodine in the Northern Arid Basins: Significance for Safe Water Supply

Xie

et al. 2022

Environ. Sci. Technol.

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show abstract

Effect of signal acquisition mode on isotope ratio precision and accuracy in ICP-quadrupole-MS analysis

Guo

Liu

et al. 2018

Microchemical Journal

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Fluoride and iodine enrichment in groundwater of North China Plain: Evidences from speciation analysis and geochemical modeling

Zhou

Qian

et al. 2017

Science of The Total Environment

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Rapid and Sensitive Speciation of Inorganic Iodine in Groundwater by IC-ICP-MS With Ar-CH4 Mixed Plasma

Cited by 8 publications

References 22 publications

Spatiotemporal Variability of Groundwater Iodine in the Northern Arid Basins: Significance for Safe Water Supply

Spatiotemporal Variability of Groundwater Iodine in the Northern Arid Basins: Significance for Safe Water Supply

Effect of signal acquisition mode on isotope ratio precision and accuracy in ICP-quadrupole-MS analysis

Fluoride and iodine enrichment in groundwater of North China Plain: Evidences from speciation analysis and geochemical modeling

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