-Chemistry
-biochemistry (for enzyme-catalyzed reactions)
-Physics
- Biology
-clinical studies
- Testing of water quality has been made easy through a spectrophotometer. How safe water is for drinking, how pure and clear it is, what properties are contained in it, etc. All these can be tested quickly and cheaply through a spectrophotometer.
- Before drugs are released to society for usage, it needs to go through some rigorous testing to ensure that it works for the purpose for which it is created. A spectrophotometer has proven to be a cost and time-saving way of doing this.