What Depth Should Deep-Sea Water be Pumped up from in the South China Sea for Medicinal Research? |
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作者姓名: | HE Shan LIU Hongbing YANG Xue LI Chunxia GUAN Huashi |
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作者单位: | Key Laboratory of Marine Drugs, Ministry of Education, Marine Drugs and Food Institute, Ocean University of China |
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基金项目: | supported by Special Fund for Marine Scientific Research in the Public Interest (2010-05024) |
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摘 要: | In this study, seawater was pumped up from 150, 200, 300, 500 and 1000 m in the South China Sea and analyzed to make certain what depth should deep-sea water (DSW) be pumped up for medicinal usage. The pumping depth of DSW was determined on the basis of chemical ingredients. The analyses of inorganic elements and dissolved organic matter (DOM) were performed by inductively coupled plasma mass spectrometry (ICP-MS) and ultra performance liquid chromatography-mass spectrometry (UPLC-MS) respectively. The raw data were used for hierarchical cluster analysis (HCA) and principal component analysis (PCA). The results showed that seawater pumped up from 500 m and 1000 m was similar in their chemical ingredients, and was different from the seawater pumped up from other depths. These results indicated that seawater from more than 500 m depth had relatively stable chemical ingredients and could be used as DSW in the South China Sea.
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关 键 词: | Deep-sea water (DSW) depth chemical ingredients hierarchical cluster analysis (HCA) principal component analysis (PCA) |
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