悬浮液进样石墨炉原子吸收光谱分析进展

Research Advance in Slurry Introduction for Graphite Furnace Atomic Absorption Spectrometry

悬浮液石墨炉原子吸收光谱分析结合了固体和液体进样方式的显著优势,是一种相对成熟的技术,并已作为常规分析方法广泛应用于有机和无机复杂基体中微、痕量金属元素的分析测定。文章结合最近10年来所取得的新进展进行综述,着重介绍和评论了悬浮液的制备(介质、稳定剂、质量体积比、粒径、均匀化体系)、基体改进剂、背景校正、方法校正及其分析的精密度等,并对悬浮液石墨炉原子吸收光谱分析的发展趋势进行了展望。全文共引用国内外文献80篇。

Slurry introduction graphite furnace atomic Absorption spectrometry combining the significant advantages of the solid and liquid sampling methods is already considered as a mature technique.It was widely utilized for metal determination in trace and even ultra trace analysis in organic and inorganic complicated matrix,even for routine analysis.Methodology of the analysis of various materials using slurry furnace atomic Absorption spectrometry was reviewed in the present paper in late 10 years.Techniques of slurry preparation （liquid media,stabilizing agents,mass/volume ratio,particle size and slurry homogenization systems）,the chemical modification,background correctors,calibration,precision and trueness of analysis were described in detail.The developing trend has also presented.Eighty one references were cited.