In our research, UV-Vis spectroscopy is routinely used for the qualitative and quantitative characterization of analytical solutions during dissolution studies, catalytic development, and various other aqueous phase experiments. We also employ UV-Vis scattering in sedimentation studies to understand the stability of suspensions containing nano- or micro-scale particles.

Instrument: Thermo Scientific Evolution™ 220 UV-Visible Spectrophotometer with double beam measurements.

Capable Measuring:     Absorbance and Transmission

Basic Features:

Wavelength Range:              190 to 1100nm

Wavelength Accuracy:         ±0.8nm (full range 190 to 1100nm)

Wavelength Repeatability:    0.1nm

Detector Type:                      Dual Silicon Photodiodes

Interface:                              On-Board Control

Lamp:                                   Xenon

Optical Design:                    Double Beam with sample and reference cuvet positions; Application Focused Beam Geometry;

                                             Czerny-Turner Monochromator

Path length:                          Up to 100mm cuvettes

Scan Speed:                        1 - 6000nm/min