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湖泊沉积物中磷形态测定的连续提取程序的选择与评估

Selection and evaluation of sequential extraction procedures for the determination of phosphorus forms in lake sediment.

作者信息

Ruban V, López-Sánchez J F, Pardo P, Rauret G, Muntau H, Quevauviller P

机构信息

Laboratoire Central des Ponts et Chaussées, Division Eau, BP 19, F-44340 Bouguenais, France.

出版信息

J Environ Monit. 1999 Feb;1(1):51-6. doi: 10.1039/a807778i.

Abstract

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.

摘要

为了在淡水沉积物中磷形态的测定方面获得可比的测量结果,欧盟委员会的标准、测量与测试计划(原BCR)启动了一个项目,其第一步是共同选择和评估现有的提取程序。这是通过专家咨询和文献调查来进行的,随后组织了首次实验室间研究,以评估四种连续提取方案,其中一种被选为实现可比性最有前景的方法。该方案是威廉姆斯协议的修改版,在第二次实验室间研究中进一步进行了测试。所谓的SMT提取方案似乎很有前景,并且在不久的将来将为湖泊恢复领域的水资源管理者提供一个有价值的工具。它在估计潜在可用磷的存量方面将特别有帮助,从而有助于评估由于内部磷释放导致富营养化的风险。

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