DETERMINATION OF SE IN SOIL SAMPLES USING THE PROTON-INDUCED X-RAY-EMISSION TECHNIQUE

被引：8

作者：

CRUVINEL, PE ^{[1
]}

FLOCCHINI, RG ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,CROCKER NUCL LAB,DAVIS,CA 95616

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1993年 / 75卷 / 1-4期

基金：

巴西圣保罗研究基金会;

关键词：

D O I：

10.1016/0168-583X(93)95687-Z

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An alternative method for the direct determination of total Se in soil samples is presented. A large number of trace elements is present in soil at concentration values in the range of part per billion and tenths of parts of million. The most common are the trace elements of Al, Si, K, Ca, Ti, V, Cr, Fe, Cu, Zn, Br, Rb, Mo, Cd, and Pb. As for biological samples many of these elements are of great importance for the nutrition of plants, while others are toxic, and others have an unknown role. Selenium is an essential micronutrient for humans and animals but it is also known that in certain areas Se deficiency or toxicity has caused endemic disease to livestock and humans through the soil-plant-animal linkage. In this work the suitability of the proton induced X-ray emission (PIXE) technique as a fast and nondestructive technique useful to measure total the Se content in soil samples is demonstrated. To validate the results a comparison of data collected using the conventional atomic absorption spectrophotometry (AAS) method was performed.

引用

页码：415 / 419

页数：5

共 24 条

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[Anonymous], 1988, PIXE NOVEL TECHNIQUE

[2]

Bowen HJM, 1979, ENV CHEM ELEMENTS

[3]

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