The UV-2550 double monochromator design provides a high-energy throughput optical system with ultra-low stray light. While featuring low stray light, excellent energy characteristics are provided over an extremely wide wavelength range.

Shimadzu UV-2550 spectrophotometer . Measurement wavelength range 190 – 900 nm.

Qualitative analysis can be used to identify certain classes of compounds both as pure samples and in biological mixtures. This type of spectroscopy is most commonly used for quantification of biological samples either directly or via colorimetric assays.

UV-visible spectra will not give an absolute identification of an unknown compound, but the spectra are frequently used to confirm the identity of a substance through comparison of the measured spectrum with a reference spectrum.

Figure: UV-visible spectra. The Absorption maximum for this compound is about 500 nm.