Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 134, Issue 1, Pages 234-237Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2008.04.046
Keywords
Colorimetric sensor; Hydrogen sulfide sensor; Sensor array; Gas detection
Ask authors/readers for more resources
A simple, rapid and low-cost method for differentiating a wide range of concentrations of gaseous hydrogen sulfide (H2S) is described. A large dynamic range (50 ppb to 50 ppm) was successfully classified at ambient temperature using a colorimetric sensor array comprised of chemoresponsive dyes coupled to a commercially available 8-bit flatbed scanner. Principle component analysis of the composite magnitude and kinetics of color change for the array of dye spots over the entire dynamic range resulted in 100% classification. This was achieved by including chemoresponsive dyes which reacted specifically with H2S at different detection thresholds. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available