A Simple Photometer Based on a New Tri-Colour Light-Emitting Diode

Peter C. Hauser; Thusitha W.T. Rupasinghe; Robin Tan

doi:10.2533/chimia.1995.492

A Simple Photometer Based on a New Tri-Colour Light-Emitting Diode

Authors

Peter C. Hauser
Thusitha W.T. Rupasinghe
Robin Tan

DOI:

https://doi.org/10.2533/chimia.1995.492

Abstract

Light-emitting diodes which can produce blue, green, and red light and therefore cover most of the visible range have recently been introduced. Such a device is used in the construction of a simple and compact photometer for molecular absorbance measurements in analytical chemistry.