Low Cost, Disposable Colorimetric Sensor for Quantitative Detection of Ammonia Gas

Ruchi Srivastava; Abhishek Verma; V. K. Jain

doi:10.1117/12.925176

15 October 2012 Low cost, disposable colorimetric sensor for quantitative detection of ammonia gas

Ruchi Srivastava, Abhishek Verma, V. K. Jain

Proceedings Volume 8549, 16th International Workshop on Physics of Semiconductor Devices; 85491A (2012) https://doi.org/10.1117/12.925176
Event: 16th International Workshop on Physics of Semiconductor Devices, 2011, Kanpur, India

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.

Citation Download Citation

Ruchi Srivastava, Abhishek Verma, and V. K. Jain "Low cost, disposable colorimetric sensor for quantitative detection of ammonia gas", Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 85491A (15 October 2012); https://doi.org/10.1117/12.925176

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