Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water
Phosphorus is a key indicator for water quality management due to its role in eutrophication. The variety of phosphorus-containing substances necessitates highly sensitive detection of total phosphorus, particularly through automated methods, to ensure water safety. This study involved the independe...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2024.1492115/full |
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| author | Yanmin Zhang Yanmin Zhang Shougang Chen Yan Liu Yan Liu Yan Zou Yan Zou Yang Wang Yang Wang Shuwei Zhang Shuwei Zhang Xiangfeng Kong Xiangfeng Kong Yang Gao Yang Gao Nan Gao Nan Gao |
| author_facet | Yanmin Zhang Yanmin Zhang Shougang Chen Yan Liu Yan Liu Yan Zou Yan Zou Yang Wang Yang Wang Shuwei Zhang Shuwei Zhang Xiangfeng Kong Xiangfeng Kong Yang Gao Yang Gao Nan Gao Nan Gao |
| author_sort | Yanmin Zhang |
| collection | DOAJ |
| description | Phosphorus is a key indicator for water quality management due to its role in eutrophication. The variety of phosphorus-containing substances necessitates highly sensitive detection of total phosphorus, particularly through automated methods, to ensure water safety. This study involved the independent development of a sensor featuring an automated in situ detection technique. Utilizing potassium persulfate high-temperature oxidation and phosphorus molybdenum blue spectrophotometry, total phosphorus was monitored in situ via sequential injection technology. Additionally, the detection process and reaction conditions of the sensor were optimized, and a temperature compensation algorithm and turbidity correction were applied to mitigate environmental factors. Under optimal conditions, the sensor demonstrated a detection limit of 1.9 µg/L with a range of 6.5–1000 µg/L in seawater, and 1.2 µg/L with a range of 4.1–2000 µg/L in freshwater. The digestion efficiency for five representative phosphorus-containing substances was found to range from 87.3% ± 1.7% to 103.1% ± 0.6%. Notably, the sensor was deployed for in situ operation at a marine experimental station and online at a river monitoring station. With its integration, low power consumption, and high precision, the sensor enabled long-term unattended monitoring, delivering accurate, stable, and reliable results. |
| format | Article |
| id | doaj-art-b5dc2f55e38045d7a974eed53a7e4e22 |
| institution | Kabale University |
| issn | 2296-7745 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj-art-b5dc2f55e38045d7a974eed53a7e4e222024-11-19T13:20:49ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452024-11-011110.3389/fmars.2024.14921151492115Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine waterYanmin Zhang0Yanmin Zhang1Shougang Chen2Yan Liu3Yan Liu4Yan Zou5Yan Zou6Yang Wang7Yang Wang8Shuwei Zhang9Shuwei Zhang10Xiangfeng Kong11Xiangfeng Kong12Yang Gao13Yang Gao14Nan Gao15Nan Gao16Department of Materials Science and Engineering, Ocean University of China, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaDepartment of Materials Science and Engineering, Ocean University of China, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaInstitute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao, ChinaLaoshan Laboratory, Qingdao, ChinaPhosphorus is a key indicator for water quality management due to its role in eutrophication. The variety of phosphorus-containing substances necessitates highly sensitive detection of total phosphorus, particularly through automated methods, to ensure water safety. This study involved the independent development of a sensor featuring an automated in situ detection technique. Utilizing potassium persulfate high-temperature oxidation and phosphorus molybdenum blue spectrophotometry, total phosphorus was monitored in situ via sequential injection technology. Additionally, the detection process and reaction conditions of the sensor were optimized, and a temperature compensation algorithm and turbidity correction were applied to mitigate environmental factors. Under optimal conditions, the sensor demonstrated a detection limit of 1.9 µg/L with a range of 6.5–1000 µg/L in seawater, and 1.2 µg/L with a range of 4.1–2000 µg/L in freshwater. The digestion efficiency for five representative phosphorus-containing substances was found to range from 87.3% ± 1.7% to 103.1% ± 0.6%. Notably, the sensor was deployed for in situ operation at a marine experimental station and online at a river monitoring station. With its integration, low power consumption, and high precision, the sensor enabled long-term unattended monitoring, delivering accurate, stable, and reliable results.https://www.frontiersin.org/articles/10.3389/fmars.2024.1492115/fulltotal phosphorusin situ sensorsequential injection analysiswater samplestemperature compensation |
| spellingShingle | Yanmin Zhang Yanmin Zhang Shougang Chen Yan Liu Yan Liu Yan Zou Yan Zou Yang Wang Yang Wang Shuwei Zhang Shuwei Zhang Xiangfeng Kong Xiangfeng Kong Yang Gao Yang Gao Nan Gao Nan Gao Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water Frontiers in Marine Science total phosphorus in situ sensor sequential injection analysis water samples temperature compensation |
| title | Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water |
| title_full | Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water |
| title_fullStr | Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water |
| title_full_unstemmed | Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water |
| title_short | Automatic in situ sensor based on K2S2O8 oxidation method for total phosphorus detection in marine water |
| title_sort | automatic in situ sensor based on k2s2o8 oxidation method for total phosphorus detection in marine water |
| topic | total phosphorus in situ sensor sequential injection analysis water samples temperature compensation |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2024.1492115/full |
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