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题名: Characterization of phosphorus in the aerosol of a coastal atmosphere: Using a sequential extraction method
作者: Hung-Yu Chen;Tien-Hsi Fang;Martin R. Preston;Saulwood Lin
贡献者: NTOU:Department of Marine Environmental Informatics
國立臺灣海洋大學:海洋環境資訊系
关键词: Phosphorus;Inorganic phosphorus;Organic phosphorus;Aerosol;Sequential extraction method
日期: 2006-01
上传时间: 2011-10-20T08:23:07Z
出版者: Atmospheric Environment
摘要: abstract:Particulate aerosol was sequentially extracted by citrate/dithionite/bicarbonate and acetic acid/sodium acetate buffers so as to isolate phosphorus associated with oxides/hydroxides (Fe-P) and Acet-P, respectively. Total phosphorus (TP) and total inorganic phosphorus (TIP) contents were analyzed separately and the difference between them used to calculate the organic phosphorus (OP) content. The difference between TIP and the sum of Fe-P and Acet-P was assumed to be the detrital apatite (Det-P). The results of this study indicate that phosphorus species show a clear monthly variability that is related to the source strengths of the crustal weathering and biological blooming in winter and spring, respectively. There are highly significant covariations between the TP, TIP and Det-P, which suggests that these derive from similar sources and share transport mechanisms. The percentage concentrations of OP show that phosphorus tends to be associated with organic particles in warm periods when biological activity is greatest.
關聯: 40(2), pp.279–289
URI: http://ntour.ntou.edu.tw/handle/987654321/25405
显示于类别:[海洋環境資訊系] 期刊論文

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