Métodos matemáticos para correção de interferências espectrais e efeitos interelementos na análise quantitativa por fluorescência de raios-X

Química Nova

Noemi Nagata²  Maria Izabel M. S. Bueno²  Patricio G. Peralta-zamora¹ 

[1] ,Universidade Estadual de Campinas Instituto de Química Campinas SP

关键词: x-ray fluorescence;    interferences;    correction methods;   

DOI  :  10.1590/S0100-40422001000400015

来源: SciELO

【 摘 要 】

One of the main problems in quantitative analysis of complex samples by x-ray fluorescence is related to interelemental (or matrix) effects. These effects appear as a result of interactions among sample elements, affecting the x-ray emission intensity in a non-linear manner. Basically, two main effects occur; intensity absorption and enhancement. The combination of these effects can lead to serious problems. Many studies have been carried out proposing mathematical methods to correct for these effects. Basic concepts and the main correction methods are discussed here.

【 授权许可】

CC BY-NC   
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