Definition of REPROACH. 1. : an expression of rebuke or disapproval. 2. 3. a: a cause or occasion of blame, discredit, or disgrace b: discredit, disgrace. 4.
What is the difference between a spectrophotometer and a photometer? A photometer simply measure the total lumens of a light source, while a spectrophotometer will measure a whole spectral of that same light source.
Spectrophotometers. Spectrophotometers measure light intensity as a function of wavelength and are commonly used to measure the concentration of a compound in an aqueous solution.Depending on the type of spectrophotometer, different wavelengths of light can be analyzed.UV-Vis spectrophotometers (ultraviolet visible) measure in the UV and visible regions of the electromagnetic spectrum (190 to 380 nm and 380 to 760 nm, respectively).epending on the type of spectrophotometer, different wavelengths of light can be analyzed. UV-Vis spectrophotometers (ultraviolet visible) measure in the UV and visible regions of the electromagnetic spectrum (190 to 380 nm and 380 to 760 nm, respectively).