Spectrophotometric Analyzer

Spectrophotometry is a tool that hinges on the quantitative analysis of molecules depending on how much light is absorbed by colored compounds. Important features of spectrophotometers are spectral bandwidth (the range of colors it can transmit through the test sample), the percentage of sample transmission, the logarithmic range of sample absorption, and sometimes a percentage of reflect. SummarySpectrophotometry is a branch of concerned with the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. Spectropho. Invented by in 1940 , the spectrophotometer was created with the aid of his colleagues at his company National Technical Laboratories founded in 1935 which would become Beckman Instrument Company a. There are two major classes of devices: single-beam and double-beam. A double-beam spectrophotometer compares the light intensity between two light paths, one path containing a reference sample and the other the te. [PDF]