[Lilly]

How does it work?
Can i find a website that explains it in simple A2 level terms?

I am confused between atomic emission spectroscopy, atomic absorption and UV visible absorption?

Are absorption and emission the principles on which these work?

 

[ARGOS++]

Dear Lilly;

Compare:  http://en.wikipedia.org/wiki/Emission_spectroscopy 
with:         http://en.wikipedia.org/wiki/Atomic_emission_spectroscopy 
and:          http://en.wikipedia.org/wiki/Atomic_absorption_spectroscopy 
and:          http://en.wikipedia.org/wiki/Ultraviolet-visible_spectroscopy 
(You may also use the presented sub-links.)

Yes!,  -  "All" is based  on Absorption, and Emission, and Beer-Lambert Law:         

"Corrected Beer's Law"

Good Luck!
                    ARGOS⁺⁺