Optical pH sensor for the alkaline region

Blue, Robert and Stewart, G. (1997) Optical pH sensor for the alkaline region. Electronics Letters, 33 (6). 526 - 528.

Full text not available in this repository.Request a copy from the Strathclyde author

Abstract

An optical sensor incorporating near infrared opto-electronics which measures pH in the alkaline region is reported. Contaminants within the aqueous solutions whose pH is being measured interfered with the evanescent wave sensing technique and a method to overcome this problem is demonstrated.