Rare earth elements determination in environmental matrices by INAA

被引：48

作者：

Orvini, E

Speziali, M

Salvini, A

Herborg, C

机构：

[1] Univ Pavia, Dept Gen Chem, CNR, Ctr Radiochem & Activat Anal, I-27100 Pavia, Italy

[2] Univ Pavia, LENA, I-27100 Pavia, Italy

来源：

MICROCHEMICAL JOURNAL | 2000年 / 67卷 / 1-3期

关键词：

rare earth; REE; environment; trace; neutron activation analysis; NAA; INAA;

D O I：

10.1016/S0026-265X(00)00104-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The mobilization of rare earth elements (REEs) in the environment requires monitoring of these elements in environmental matrices, in which they are mainly present at trace levels. In nature, REEs are frequently associated to thorium and uranium, elements with a chemical behavior similar to that of lanthanides, as well as scandium. The similarity in REEs chemical behavior makes the separate determination of each element by chemical methods difficult; instrumental neutron activation analysis (INAA), based on nuclear properties of the elements to be determined, is a method of choice in trace analysis of REEs and related elements. The levels of REEs, U, Th, and Sc were determined in two environmental matrices which are being certified as Reference Materials: CRM 600-Calcareous Soil and CRM 667-Estuarine Sediment, issued by the EU Standards, Measurement and Testing Programme. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：97 / 104

页数：8

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