Determination of multi-element profiles of soil using energy dispersive X-ray fluorescence (EDXRF)

被引：31
|
作者：
Yu, KN
Yeung, ZLL
Lee, LYL
Stokes, MJ
Kwok, RCW
机构：
[1] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Publ & Social Adm, Kowloon, Hong Kong, Peoples R China
来源：
APPLIED RADIATION AND ISOTOPES | 2002年 / 57卷 / 02期
关键词：
EDXRF; soils; principal-component analysis;
D O I：
10.1016/S0969-8043(02)00092-1
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The source profile for soil in Hong Kong is important both for determination of the main air pollutant source in Hong Kong and for assessment of the impact of Asian dust storms on Hong Kong. Soil associated with different rock types have been sampled, and the concentrations of 19 chemical elements, Na, Al, Si, Ti, V, Cr, Mn, Fe, Co, K, Ca, Ni, Cu, Zn, Pb, Rb, Sr, Y and Zr, have been determined using energy dispersive X-ray fluorescence. A profile for the average soil for Hong Kong has been determined by taking average values for the different soil categories. The values for the Hong Kong soil are commensurate with values for rural soil derived by other workers, except that Hong Kong soil has much lower Fe and Ca concentrations. The abundance of Al, Ca and Fe in the average Hong Kong soil are 9.23%, 0.11% and 0.85%. We conclude that Ca provides a good marker element for identifying dust episodes in Hong Kong while Al does not. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：279 / 284
页数：6
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