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Proceedings Paper

Low cost, disposable colorimetric sensor for quantitative detection of ammonia gas
Author(s): Ruchi Srivastava; Abhishek Verma; V. K. Jain
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Paper Abstract

The development of a simple, fast, disposable and low cost method for sensing and differentiating a wide range of concentration of toxic ammonia vapor by using colorimetric sensor is reported. A large dynamic range from 10 ppm to 1,00,000 ppm is successfully classified at ambient temperature with reproducible results. The CSA strip is consists of the dots of chemo-responsive materials, which are environmental friendly and react specifically with ammonia at different thresholds. The pattern of color change of colorimetric sensor array is unique for reported concentration range of ammonia gas.

Paper Details

Date Published: 15 October 2012
PDF: 5 pages
Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85491A (15 October 2012); doi: 10.1117/12.925176
Show Author Affiliations
Ruchi Srivastava, Amity Univ. (India)
Abhishek Verma, Amity Univ. (India)
V. K. Jain, Amity Univ. (India)


Published in SPIE Proceedings Vol. 8549:
16th International Workshop on Physics of Semiconductor Devices
Monica Katiyar; B. Mazhari; Y N Mohapatra, Editor(s)

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