•Emission measurements
require:
• 1) means of exciting emission i.e., way of populating
upper energy level which spontaneously emits
• 2) device for dispersing radiation into component
wavelengths
• 3) a means of putting sample into the
optical path, i.e., cell
• 4) Detector to convert the EM to an electrical
signal
• 5) readout device or circuitry, i.e.,
meter, computer, recorder, integrator, etc.