What is the advantage of a spectrophotometer?
A spectrophotomer is a device used for measuring the intensity of light in a part of the spectrum. One of its advantages is figuring out how much of one color is present in an ink.
A spectrophotometer is an instrument to measure how much light of a specified wavelength passes through a medium. It quantitatively measures the reflection or transmission properties of a material as a function of wavelength. The main uses of spectrophotometer are in the forensic sciences (including chemistry, biology, biochemistry, physics, etc.) as well as the medical field with the purpose being research.
Spectrophotometer need to be calibrated against a blank solution so that measurements after it can use the blank solution's absorbance as a zero reference. For example, if you want to measure the concentration of a variety of protein solutions prepared in 1% ammonium sulphate, you need to blank the spectrophotometer with a 1% ammonium sulphate solution (no protein) so that the measurements only reflect the concentration of protein.
A colorimeter measures the absorbance of a particular wavelength by a solution. It is usually used to determine the concentration of a known solute in a known solvent through the application of the Beer-Lambert law (absorbance is proportional to concentration). A spectrophotometer is related to a colorimeter but may be used to scan across a spectrum of wavelengths. It also measures slightly different properties. A spectrophotometer usually measures transmittance (which is related to absorbance) or…