학술논문
Adsorption of mercury vapor by gold and silver
Document Type
Journal Article
Author
Source
Anal. Chem.; (United States); 51:7
Subject
Language
English
Abstract
The sticking probability is unity for mercury vapor hitting a gold or freshly-formed silver surface. Adsorption isotherms for gold films indicate that it is not significantly affected by film aging, at least over periods as long as 235 h. Adsorption isotherms for silver films deteriorate rapidly with aging, indicating a marked decline in sticking probability. The absorptive capacity of gold films is approximately 0.7 ..mu..g Hg per cm/sup 2/ of superficial film area. The adsorptive capacity for silver films varies significantly with aging time. Silver wool, silvered Chromsorb P, and silver membrane filters adsorb amounts of mercury equivalent to 2/3--1 1/2 monolayers (approx. = 0.36 ..mu..g/cm/sup 2/).