Excitation Emission lon Excited State Energy lon Ground state- Excited States a b c d g λ2 Ground State Figure 2-1. Energy level diagram depicting energy transitions where a and b rep resent excitation c is ionization d is ionization /excitation e is ion emission and f, g and h are atom emission
32 Cm n 9836 6丰0 6 5f500 6p dd 1000 5s 20000 250 30.avi 35.OM ig 2-2 Grotrian diagrams for K
232 S: ),000 15, 2.s 5000 Es 12s 5000 Fig 2-3 Grotrian diagrams for Na
23 b Interaction of Radiation with Molecules E(molecule)= Ee+ Ey+ Er △E=E2-E1=hy ° Absorption M+hv→→M Fluorescence M+h→M→M+hv
2.3b Interaction of Radiation with Molecules E(molecule) = Ee + Ev + Er E = E2 — E1 = hv •Absorption M + hv →M* •Fluorescence M + hv →M* →M + hv`
24 Instrumentation 1. The Components of a Spectrometer (1) Light Source (2) Sample cell (3)Polychromator or Monochromator (4) Detector
2.4 Instrumentation 1. The Components of a Spectrometer ⑴ Light Source ⑵ Sample cell ⑶ Polychromator or Monochromator ⑷ Detector