Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor
As an essential metal micronutrient, Fe plays an important role in the marine biogeochemical cycling process, and the bioavailability of Fe has a direct relationship with its fractions in water. The fractionation analysis of iron in main coastal rivers to Yantai Sishili Bay was achieved with an elec...
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MDPI AG
2021-09-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/9/10/1063 |
| _version_ | 1827679425239449600 |
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| author | Xueping Hu Haitao Han Chenchen Wang Xingliang Song |
| author_facet | Xueping Hu Haitao Han Chenchen Wang Xingliang Song |
| author_sort | Xueping Hu |
| collection | DOAJ |
| description | As an essential metal micronutrient, Fe plays an important role in the marine biogeochemical cycling process, and the bioavailability of Fe has a direct relationship with its fractions in water. The fractionation analysis of iron in main coastal rivers to Yantai Sishili Bay was achieved with an electrochemical sensor based on bismuth microrods (BiMRs). The sensor was characterized by scanning electron microscope and electrochemical methods, and the reliability of the sensor was verified by the determination of the standard samples. Different fractions of iron in coastal river waters, including total iron (TFe), total dissolved iron (TDFe) and particulate iron (PFe), have been determined by combining simple sample pretreatments and cathodic stripping voltammetry with the BiMRs-based sensor. The average concentrations of TFe in Guangdang River, Xin’an River and Yuniao River were 4.02, 3.66 and 4.42 μmol L<sup>−1</sup>, respectively. The main fractionation of iron in three rivers was PFe, which accounts for 84.46%, 87.56% and 92.34%, respectively. Furthermore, the relationships between iron concentration and tidal action, salinity, dissolved oxygen and other factors were also investigated. |
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| id | doaj.art-e3bdbe26e0af4b049022102b8cb98c1a |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T06:28:21Z |
| publishDate | 2021-09-01 |
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| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-e3bdbe26e0af4b049022102b8cb98c1a2023-11-22T18:44:55ZengMDPI AGJournal of Marine Science and Engineering2077-13122021-09-01910106310.3390/jmse9101063Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical SensorXueping Hu0Haitao Han1Chenchen Wang2Xingliang Song3School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, ChinaResearch Center for Coastal Environment Engineering Technology of Shandong Province, CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, ChinaResearch Center for Coastal Environment Engineering Technology of Shandong Province, CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Shandong Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, ChinaSchool of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, ChinaAs an essential metal micronutrient, Fe plays an important role in the marine biogeochemical cycling process, and the bioavailability of Fe has a direct relationship with its fractions in water. The fractionation analysis of iron in main coastal rivers to Yantai Sishili Bay was achieved with an electrochemical sensor based on bismuth microrods (BiMRs). The sensor was characterized by scanning electron microscope and electrochemical methods, and the reliability of the sensor was verified by the determination of the standard samples. Different fractions of iron in coastal river waters, including total iron (TFe), total dissolved iron (TDFe) and particulate iron (PFe), have been determined by combining simple sample pretreatments and cathodic stripping voltammetry with the BiMRs-based sensor. The average concentrations of TFe in Guangdang River, Xin’an River and Yuniao River were 4.02, 3.66 and 4.42 μmol L<sup>−1</sup>, respectively. The main fractionation of iron in three rivers was PFe, which accounts for 84.46%, 87.56% and 92.34%, respectively. Furthermore, the relationships between iron concentration and tidal action, salinity, dissolved oxygen and other factors were also investigated.https://www.mdpi.com/2077-1312/9/10/1063iron fractionationcoastal riverselectrochemical sensorbismuth microrods |
| spellingShingle | Xueping Hu Haitao Han Chenchen Wang Xingliang Song Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor Journal of Marine Science and Engineering iron fractionation coastal rivers electrochemical sensor bismuth microrods |
| title | Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor |
| title_full | Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor |
| title_fullStr | Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor |
| title_full_unstemmed | Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor |
| title_short | Fractionation Analysis of Iron in Coastal Rivers to Yantai Sishili Bay with a Bismuth Microrods-Based Electrochemical Sensor |
| title_sort | fractionation analysis of iron in coastal rivers to yantai sishili bay with a bismuth microrods based electrochemical sensor |
| topic | iron fractionation coastal rivers electrochemical sensor bismuth microrods |
| url | https://www.mdpi.com/2077-1312/9/10/1063 |
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