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.
The quantitative measurement of light absorption as a function of wave-length can establish both the identity and the concentration of a substance in solution. The spectrophotometer is an instrument that separates electromag-netic radiation into its component wavelengths and selectively measures the