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无焰原子吸收法与火焰法相比较灵敏度高出二、三个数量级,样品在原子化前经过干燥和灰化以蒸去溶剂和分解基体,仅需要经过简单的前处理即可进行分析,适用于生物体中痕量金属的测定。无焰法中用得最多的是石墨管和石墨杯原子化器,虽然近年来分析方法得到了广泛的应用,但干扰问题还研究得不多。关于干扰的机理目前尚有不同的观点。分析信号的抑制是无焰原子吸收法中常见的现象,但
Flameless atomic absorption spectrometry flame sensitivity compared to two or three orders of magnitude, the sample before the atomization drying and ashing to distill off the solvent and decomposition of the matrix, only need to go through a simple pre-treatment can be analyzed for Determination of trace metals in living organisms. No flame method is the most used graphite tube and graphite cup atomizer, although in recent years the analytical method has been widely used, but the interference problem is not much studied. There are different opinions on the mechanism of interference. Analysis of signal suppression is a common phenomenon in flameless atomic absorption spectrometry, however