Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 122, Issue 2, Pages 437-441Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2006.06.012
Keywords
sensing phase; one-shot optical sensor; cyanide; methyl violets; triacetylcellulose
Ask authors/readers for more resources
The characterization of an optical absorption based one-shot sensor membrane is described for the determination of cyanide ion based on the immobilization of methyl violet on a triacelylcellulose membrane. Methyl violet is covalently bonded to a transparent triacetylcellulose film. Cyanide ion reacts with the immobilized methyl violet and causes a decrease in the absorbance of the film at 598 nm. The response time of sensing phase is within 8-12 min depending on the concentration of CN- ions. This sensing phase has a linear range of 3.8-95 mmol L-1 (100-2500 mu g mL(-1)) for CN- ions with a limit of detection of 2.4 mmol L-1 (63 mu g mL(-1)) at a wavelength of 598 nm. The one-shot sensor can readily be fully regenerated with methyl violet solution, and the color is fully reversible. (c) 2006 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