浅谈火焰原子吸收光谱法中常见问题及解决方法

Common Problems and Solutions of Flame Atomic Absorption Spectrometry

原子吸收光谱法是分析化学领域中极其重要的一种分析方法,作为实验室的常规方法,已能分析70多种元素。在原子吸收光谱分析中,试样中被测元素的原子化是整个分析过程的关键环节。原子化器主要有火焰原子化器、石墨炉原子化器、氢化物发生原子化器及冷蒸气发生原子化器4种类型,其中火焰原子化器是原子光谱分析中最早使用的原子化方法,至今仍在广泛应用。本文主要分析了火焰原子吸收光谱法应用中常见的问题,并提出了相应的解决办法,以期为检测人员提供参考。

FAAS is usually applied for determination of heavy mental elements. As a laboratory routine, more than 70 elements could be analyzed. In the analysis of atomic absorption spectrometry, the atomization of the tested elements in the sample is the key link in the whole analysis process. The atomizer consists of flame atomizer, graphite furnace atomizer, hydride generation atomizer and cold vapor. Among them, flame atomizer is the earliest atomization method in atomic spectrum analysis and is still widely used. In this paper, common problems of heavy mental elements by FAAS were analyzed and the related countermeasures were proposed in order to provide effective references for the inspectors.