SPECIATION OF HEAVY-METALS IN SOILS AND SEDIMENTS - AN ACCOUNT OF THE IMPROVEMENT AND HARMONIZATION OF EXTRACTION TECHNIQUES UNDERTAKEN UNDER THE AUSPICES OF THE BCR OF THE COMMISSION-OF-THE-EUROPEAN-COMMUNITIES
SPECIATION OF HEAVY-METALS IN SOILS AND SEDIMENTS - AN ACCOUNT OF THE IMPROVEMENT AND HARMONIZATION OF EXTRACTION TECHNIQUES UNDERTAKEN UNDER THE AUSPICES OF THE BCR OF THE COMMISSION-OF-THE-EUROPEAN-COMMUNITIES
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DOI：
10.1080/03067319308027619
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发表时间：
1993-01-01
影响因子：
2.6
通讯作者：
GRIEPINK, B
中科院分区：
文献类型：
--
作者：
URE, AM;QUEVAUVILLER, P;GRIEPINK, B
介绍了由BCR发起的一系列关于用化学试剂提取土壤和沉积物中金属形态的现行方法的调查和合作研究。通过与欧洲专家的广泛协商确定，可以将所使用的各种程序统一为商定的方法。这些方法，包括单一萃取剂和顺序萃取法，都经过了协作性的实验室间试验，结果表明，制备以可萃取物含量的认证值为特征的参比土壤和沉积物是可能的，也是可取的。作为这些研究的结果，已经准备了两个土壤，不久将作为实验室间分析的对象，以期证明它们的EDTA和可提取的某些重金属的醋酸含量。据信，在这次研讨会之后，对商定的顺序提取程序进行的可行性研究不久将导致对沉积物中可通过规定的顺序提取程序提取的内容进行认证。
An account is presented of a series of investigations and collaborative studies, initiated by BCR, on current methods of metal speciation by extraction of soils and sediments with chemical reagents. It was established by extensive consultation with European experts that the diverse procedures used could be harmonized into agreed methods. These methods, including both single extractant and sequential extraction procedures were subjected to collaborative, interlaboratory trials and the results, presented briefly here, showed that it was both possible and desirable that reference soils and sediments, characterised by certified values for extractable contents, be prepared. As a consequence of these studies two soils have been prepared and will shortly be the subject of interlaboratory analysis with a view to certification of their EDTA and acetic acid extractable contents of some heavy metals. Following this workshop a feasibility study of the agreed sequential extraction procedure will, it is believed, shortly lead to certification of sediments for contents extractable by a defined sequential extraction procedure.