B&L Large Reflective Diffraction Grating 5.5 x 6.33 in 400 lines/mm Blaze 9°44′

Flow Through Monochromator Diffraction Grating Liquid spectrometer

Bausch & Lomb Diffraction Grating 270 g/mm Blaze 5°53′ Certified,Damaged Corners

Transformer - Severn Analytical SA6503

Deuterium lamp light source - Severn Analytical SA6503

Precision Research Spectrophotometer Monochromator / Diffraction grating

Diffraction Grating - Thermo Genesys 10-S

PCB 9000-5008 - Severn Analytical SA6503