文档介绍：Chapter 4 Atomic Absorption Spectroscopy
. Theoretical Concepts
. Atomic Absorption Instrumentation
. Graphite Furnace Atomic Absorption
. Control of Analytical Interferences
. Theoretical Concepts
The Atomic Absorption Process
Theoretical Concepts
Quantitative Analysis
Characteristic Concentration
Detection Limits
The Atomic Absorption Process
Fig 4-3Grotrian diagrams for Na
Fig4-2 Grotrian diagrams for K
2. Theoretical Concepts ⑴Integral Formula of AAS Fig 4-4 Typical Shape of A Atomic Absorption line
Integral Absorption Formula By atomic theory
By Line Shape Function
( the Nature distribute )
The Peak Absorption Coefficient k0 is:
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⑵ Peak Absorption Theory by Lambert-Beer’s Law:
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The Absorbance is:
When va>> ve, then kv≈k0,
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3. Quantitative Analysis
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