Detection of the Breakthrough of Organic Solvent Vapors on an Activated Carbon Adsorption Column Using a Gas Detecting Reagent

Abstract

A new adsorption device which is able to detect the breakthrough of organic solvent vapors was developed using a detecting reagent which is packed in a gas detector tube. The organic vapor which leaks from an activated carbon adsorption column reacts with the detecting reagent. The breakthrough is detected by the stain of the reagent. When the humidity of test air was zero, the reagent was stained sharply before the breakthrough was observed. However, in the case of using humid air, the color of the detecting reagent did not clearly change, even after the breakthrough had progressed considerably.