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Selective and simultaneous high resolution 2-D imaging of As-III, Cr-III and Sb-III and dissolved oxygen by developing a new DGT technique comprising a hybrid sensor
Mingyi Ren; Zhilin Zhong; Shiming Ding; Jingfu Wang; Zhihui Dai; Cai Li; Jingxin Cao; Yan Wang; Zhi Yu; Chaosheng Zhang
2022
Source PublicationScience of The Total Environment
Volume835Pages:155460
Abstract

A new diffusive gradients in thin films technique (HR-MPTS DGT) with mercapto-functionalized attapulgite in a binding gel was developed for simultaneous two-dimensional (2-D) chemical imaging of AsIII, CrIII and SbIII selectively at the submillimeter scale, combined with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis. The HR-MPTS DGT exhibited selective accumulation of AsIII, SbIII and CrIII (> 97%), yet negligible accumulation of AsV, SbV and CrVI (< 2%). Accumulation of AsIII, CrIII and SbIII on the binding gel had a linear relationship (R2 > 0.99) with the corresponding standardized laser ablation signals, proving the feasibility of LA-ICP-MS analysis. Analysis for AsIII, CrIII and SbIII was provided with favorable analytical precision (relative standard deviation <10%). With the purpose of evaluating the dynamics of AsIII, CrIII, SbIII and O2 in the rooting zone, a hybrid sensor, which comprises the HR-MPTS gel overlying an O2 planar optode, was deployed in rhizosphere sediments. Results showed that the consumption of both AsIII and SbIII due to the oxidation extended ~4.48 mm into the sediments, which was consistent with the extension length of the oxidized sediment layers around the roots created by O2 leakage.

KeywordArsenic Chromium Antimony Planar Optode Sensor Diffusive Gradients In thIn Films
DOI10.1016/j.scitotenv.2022.155460
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Indexed BySCI
Language英语
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13561
Collection环境地球化学国家重点实验室
矿床地球化学国家重点实验室
Affiliation1.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
2.University of Chinese Academy of Sciences, Beijing 100049, China
3.Nanjing EasySensor Environmental Technology Co., Ltd, Nanjing 210018, China
4.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
5.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
6.School of Hydraulic Engineering, Changsha University of Science& Technology, Changsha 410114, China
7.School of Geography, Archaeology & Irish Studies, National University of Ireland, Galway, Ireland
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GB/T 7714
Mingyi Ren,Zhilin Zhong,Shiming Ding,et al. Selective and simultaneous high resolution 2-D imaging of As-III, Cr-III and Sb-III and dissolved oxygen by developing a new DGT technique comprising a hybrid sensor[J]. Science of The Total Environment,2022,835:155460.
APA Mingyi Ren.,Zhilin Zhong.,Shiming Ding.,Jingfu Wang.,Zhihui Dai.,...&Chaosheng Zhang.(2022).Selective and simultaneous high resolution 2-D imaging of As-III, Cr-III and Sb-III and dissolved oxygen by developing a new DGT technique comprising a hybrid sensor.Science of The Total Environment,835,155460.
MLA Mingyi Ren,et al."Selective and simultaneous high resolution 2-D imaging of As-III, Cr-III and Sb-III and dissolved oxygen by developing a new DGT technique comprising a hybrid sensor".Science of The Total Environment 835(2022):155460.
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