Function
of Spectrophotometer Parts
Light source:
1. Provide a constant source of light in appropriate wavelengths
2. Types of light sources:
Tungsten-filament – 360
– 950 nm
Tungsten-iodide – 360 –
950 nm
Tungsten-halide – 360 –
950 nm
Hydrogen &
deuterium – 220 – 360 nm