Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment
The high salt in seawater samples brings great challenges for analyzing trace heavy metals. To achieve the green separation and rapid detection of trace lead and copper in seawater, a method of coconut shell biochar enrichment was established. By using the method of adsorption and desorption, lead a...
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Science Press, PR China
2024-04-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/article/doi/10.15898/j.ykcs.202308170138 |
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| author | Mei HAN Wei ZHANG Na JIA Chenling ZHANG Xiangke KONG |
| author_facet | Mei HAN Wei ZHANG Na JIA Chenling ZHANG Xiangke KONG |
| author_sort | Mei HAN |
| collection | DOAJ |
| description | The high salt in seawater samples brings great challenges for analyzing trace heavy metals. To achieve the green separation and rapid detection of trace lead and copper in seawater, a method of coconut shell biochar enrichment was established. By using the method of adsorption and desorption, lead and copper elements in seawater were enriched on coconut shell biochar, and the coconut shell biochar powder was repeatedly washed with pure water to remove the salt matrix in seawater. The desorption was dissolved with 7.5% HNO3, and the desorption solution was filtered with 0.45μm filter membranes and analyzed by ICP-MS. Two metal elements showed good linear relationships within the range of 0.10−100μg/L, and the linear correlation coefficients were greater than 0.9995. The method had a detection limit of 0.005μg/L for Pb and 0.006μg/L for Cu, meeting the evaluation requirements of seawater quality assessment stipulated in Technical Specification for Assessment of Sea Water, Marine Sediment and Marine Biological Quality (HJ1300—2023). The spiked recovery rates for seawater samples were between 96.1% and 102.3%, with the relative standard deviation less than 5%. This method had the advantages of simple operation, low costs, environmental protection, and high reliability and sensitivity. |
| format | Article |
| id | doaj-art-7b608822fbab44a7ab4e62854e7cd746 |
| institution | DOAJ |
| issn | 0254-5357 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj-art-7b608822fbab44a7ab4e62854e7cd7462025-08-20T03:11:24ZengScience Press, PR ChinaYankuang ceshi0254-53572024-04-0143228128810.15898/j.ykcs.202308170138yk202308170138Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar EnrichmentMei HAN0Wei ZHANG1Na JIA2Chenling ZHANG3Xiangke KONG4Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaThe high salt in seawater samples brings great challenges for analyzing trace heavy metals. To achieve the green separation and rapid detection of trace lead and copper in seawater, a method of coconut shell biochar enrichment was established. By using the method of adsorption and desorption, lead and copper elements in seawater were enriched on coconut shell biochar, and the coconut shell biochar powder was repeatedly washed with pure water to remove the salt matrix in seawater. The desorption was dissolved with 7.5% HNO3, and the desorption solution was filtered with 0.45μm filter membranes and analyzed by ICP-MS. Two metal elements showed good linear relationships within the range of 0.10−100μg/L, and the linear correlation coefficients were greater than 0.9995. The method had a detection limit of 0.005μg/L for Pb and 0.006μg/L for Cu, meeting the evaluation requirements of seawater quality assessment stipulated in Technical Specification for Assessment of Sea Water, Marine Sediment and Marine Biological Quality (HJ1300—2023). The spiked recovery rates for seawater samples were between 96.1% and 102.3%, with the relative standard deviation less than 5%. This method had the advantages of simple operation, low costs, environmental protection, and high reliability and sensitivity.http://www.ykcs.ac.cn/article/doi/10.15898/j.ykcs.202308170138coconut shell biocharenrichmenticp-msseawaterheavy metals |
| spellingShingle | Mei HAN Wei ZHANG Na JIA Chenling ZHANG Xiangke KONG Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment Yankuang ceshi coconut shell biochar enrichment icp-ms seawater heavy metals |
| title | Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment |
| title_full | Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment |
| title_fullStr | Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment |
| title_full_unstemmed | Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment |
| title_short | Determination of Trace Lead and Copper in Seawater by Inductively Coupled Plasma-Mass Spectrometry with Coconut Shell Biochar Enrichment |
| title_sort | determination of trace lead and copper in seawater by inductively coupled plasma mass spectrometry with coconut shell biochar enrichment |
| topic | coconut shell biochar enrichment icp-ms seawater heavy metals |
| url | http://www.ykcs.ac.cn/article/doi/10.15898/j.ykcs.202308170138 |
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