Theoreticly, the width of the spectral line in AAS (atomic absorbtion spectroscopy) is 10^-5, but in fact there happens an extention of it and it becomes 0.002-0.005. There are some factors which lead to this extention. Most common types of extentions are :
- Doppler extention
- Pressure extention
- Self-absorbance extention.
Does anyone know how to explain in a simple way why do these 3 kinds of extentions take place?
Do these deviations happen all the time in these measurments or are they some deviations that can happen in case the concentration of atoms is to high?