期刊
APPLIED SPECTROSCOPY REVIEWS
卷 58, 期 1, 页码 65-82出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/05704928.2021.1919896
关键词
graphite furnace atomic absorption spectrometry (GFAAS); high-resolution continuum source (HR-CS); electrothermal atomization (ETA); speciation; preconcentration
Graphite furnace atomic absorption spectrometry (GFAAS) is a highly sensitive method for determining elements in samples with low sample volume requirements. While line-source GFAAS is widely used, high-resolution continuum source (HR-CS) GFAAS allows for more accurate correction of matrix-induced spectral backgrounds. This article reviews recent innovations and developments in GFAAS, including instrumentation, characterization of fundamental properties, progress in HR-CS GFAAS, sample preparation procedures, elemental speciation, preconcentration/separation protocols, and direct analysis.
Graphite furnace atomic absorption spectrometry (GFAAS) is a highly sensitive method for the determination of elements in samples while requiring a low sample volume. The analytes are converted to atoms at high temperatures in an electrothermally heated atomizer. Although line-source GFAAS continues to widely employed, high-resolution continuum source (HR-CS) GFAAS offers more accurate correction for matrix-induced spectral backgrounds. This article reviews recent innovations and developments in GFAAS, including instrumentation; the characterization of fundamental properties; progress in HR-CS GFAAS; sample preparation procedures including vapor generation, solid, and slurry sampling; elemental speciation; preconcentration/separation protocols; and direct analysis. The conclusion summarizes major developments and future directions in GFAAS.
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