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

Autosampler stepper motor - Thermo Genesys 10-S

Diffraction Grating Mirror BH20350 - Severn Analytical SA6503

Cuvette carouselle - Thermo Genesys 10-S

THERMO SCIENTIFIC GENESYS 20 SPECTROPHOTOMETER MODEL 4001 4001/4 @

Precision Hitachi Diffraction Grating On Precision Mount