Based on direct detection, ultraviolet-sensitive CCD detectors, VUVAS Spectrophotometer features open concept sample area, and works with commercial cryostats as well as sample cells having magnesium fluoride or other UV transmitting crystalline windows. Three-position sample mount for 1 in. diameter optical samples is standard. For absorbance measurements from 120–215 nm, users can collect entire range with better than 0.5 nm spectral resolution in milliseconds.