Selection and evaluation of sequential extraction procedures for the determination of phosphorus forms in lake sediment.
Selection and evaluation of sequential extraction procedures for the determination of phosphorus forms in lake sediment.
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DOI：
10.1039/a807778i
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
V. Ruban;J. F. López-Sánchez;P. Pardo;G. Rauret;H. Muntau;P. Quevauviller
中科院分区：
文献类型：
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作者：
V. Ruban;J. F. López-Sánchez;P. Pardo;G. Rauret;H. Muntau;P. Quevauviller
为了在确定淡水沉积物中的磷酸盐形态方面取得可比较的测量结果，欧洲委员会的标准、测量和测试方案（以前的BCR）启动了一个项目，其第一步是协作选择和评价现有的提取程序。这是通过专家咨询和文献调查进行的，随后组织了第一次实验室间研究，以评估四种顺序提取方案，其中一种被选为实现可比性的最有希望的方法。该方案是威廉姆斯方案的修改版本，在第二次实验室间研究中得到了进一步的测试。所谓的SMT提取方案似乎很有前途，并将在不久的将来为湖泊恢复领域的水管理人员提供一个有价值的工具。这将特别有助于估计潜在可利用磷储量，从而估计由于内部磷释放而导致富营养化的风险。
In order to achieve comparable measurements in the determination of phosphate forms in freshwater sediments, the Standards, Measurements and Testing Programme (formerly BCR) of the European Commission has launched a project the first step of which was to select and evaluate collaboratively existing extraction procedures. This was carried out through expert consultations and a literature survey, and was followed by the organisation of a first interlaboratory study for the evaluation of four sequential extraction schemes, one of which was selected as the most promising method for achieving comparability. This scheme, a modified version of the Williams protocol, was further tested in a second interlaboratory study. The so-called SMT extraction scheme seems promising and will provide, in the near future, a valuable tool for water managers in the field of lake restoration. It will be particularly helpful in estimating the stock of P potentially available, hence the risk of eutrophication due to internal P release.