This paper investigates the possible techniques for measurement of the extinction coefficient of oils in the near UV. Results show that the best technique, in precision and ease of use, is the unknown thickness method. This method, never proposed up to now as far as we know, allows the use of a standard spectrophotometer. Beer’s law is also validated for oils and a simple function is proposed for fitting the extinction coefficient spectra.
© 1991 Optical Society of America
Antongiulio Barbaro, Giovanna Cecchi, and Piero Mazzinghi, "Oil UV extinction coefficient measurement using a standard spectrophotometer," Appl. Opt. 30, 852-857 (1991)