Showing posts with label radiation source. Show all posts
Showing posts with label radiation source. Show all posts

Sunday, November 1, 2009

IR INSTRUMENTATION

Source- Incandescent material

Other sources – Nernst glower , Globar , Carbon arc, Heated Nichrome

Monochromator – Quartz – prism

Detectors – Photo conductivity cell, Thermocouple, Pyroelectric detectors

INSTRUMENTATION OF UV-VISIBLE SPECTROSCOPY

INSTRUMENTATION

Radiation source
Wavelength selectors
Prisms – visible – glass prisms
ultraviolet – silica, quartz prisms
Sample holder – cells or cuvette
visible – glass
ultraviolet – fused silica cells
Solvent – ethyl alcohol