Atomic absorption spectrometry is more sensitive than atomic emission spectrometry.
ICP-MS allows multi-element analysis. It has a longer linear working range so fewer standards for calibration is needed as they can be spaced further apart. ICP-MS also has a higher sensitivity compared to atomic emission spectrometry or atomic absorption spectrometry.
Atomic emission spectrometry is a selective method for quantifying some types of metals. It is also cheap and robust. However, atomic emission spectrometry is only applicable to the determination of alkali metals and some alkaline earth metals.
Atomic emission spectrometry is limited to alkali metals.
Examples: emission spectrometry, flame photometry, atomic absorption, etc.
advantages of atomic emission
1. Emission optical spectrography 2. ICP mass spectrometry 3. Atomic absorption spectrophotometry 4. Gravimetry 5. Volumetry/Potentiometry 6. ICP atomic spectrometry 7. Spectrophotometry with arsenazo III etc.
George Zachariadis has written: 'Inductively coupled plasma atomic emission spectrometry' -- subject(s): Inductively coupled plasma atomic emission spectrometry
Emission spectrometry is an old and largely known method for quantitative and qualitative analysis of elements.
Each chemical element has a specific emission or absorption spectrum.
Chemical interference occurs due to the absorbance/emission by molecules that did not break down into atoms. Inductively-coupled plasma mass spectrometry has less chemical interference as its hotter temperature breaks down everything into atoms.
It is especially sensitive for alkali metals.
Atomic absorption is more sensitive to atomic emission when the excitation potential is greater than 3.5eV.