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在文献资料中,人们经常用检出限或测定下限来描述某种分析方法用某一分析仪器测定低含量元素(或组分)的能力.但是,对于这两个特征量的定义、它们以及它们与测定灵敏度的区别,有时认识并不完全一致,甚至缺乏明确的界限.有的把测定下限或检出限错误地看作分析方法的灵敏度.本文在前文的基础上,根据有关标准的规定和某些文献资料,结合原子吸收光谱分析法,介绍检出限和测定下限,供大家讨论.
In the literature, the limits of detection or the lower limit of determination are often used to describe the ability of an analytical method to determine the content of a low element (or component) with an analytical instrument, but for the definition of these two quantities, and The difference between them and the determination of sensitivity, sometimes not fully recognized, or even the lack of a clear boundary, and some of the lower limit of detection or detection error as the analytical method of sensitivity.This article based on the previous, according to the relevant provisions of the standard And some literature, combined with atomic absorption spectrometry, detection limit and lower limit of detection, for discussion.