Question

14. Why is better sensitivity usually achieved using graphite furnace atomization rather than flame atomization.

15. Why is spectral interference more of a problem in flame emission AA than in ICP?

Answer 1

14.the flame aspirates a continuous flow of sample solution keeping a constant constant concentration of absorbing atoms, for as long as to establish and note the absorbance

the furnace provides a puff of atoms in a small clod which is transisting concentration of atom is measured.

the graphite furnace subject to matrix proble with a very sensitve methods rather than flame atomisation because the here in graphite atomisation there will not be a continuous sampling ofa solution

15.sampling preparation is same as flame atomisation absorption except the modifier for masking interface is not often necessary because of masking interference the spectral interference is making more problems