The use of thin silver films for the detection of low concentrations of hydrogen sulphide

Hawkins, S. J.; Ratcliffe, Norman M.; Sagastizabal, A.

Abstract

This work describes the facile fabrication of a sensor for the visual detection of hydrogen sulphide at concentrations of ≤0.1 ppm. Colloidal silver films were prepared on PVC by a dip-coating method which, on exposure to hydrogen sulphide, underwent a colour change from yellow/grey to black. The rate of change was considerably faster than for films prepared by vacuum deposition, A visual change of the colloidal silver film was observed for hydrogen sulphide at 1 ppm within 10 rain and at 0.1 ppm in 60 min.

• Journal Article Type: Article
• Publication Date: Feb 19, 1998
• Deposit Date: May 7, 2013
• Publicly Available Date: Jun 4, 2016
• Journal: Analytica Chimica Acta
• Print ISSN: 0003-2670
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 359
• Issue: 1-2
• Pages: 125-132
• DOI: https://doi.org/10.1016/S0003-2670%2897%2900633-8
• Public URL: https://uwe-repository.worktribe.com/output/1100068
• Publisher URL: http://dx.doi.org/10.1016/S0003-2670(97)00633-8
• Contract Date: Jun 4, 2016