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The Detection Properties of Ammonia SAW Gas Sensors Based on L-glutamic Acid Hydrochloride

Chi-Yen Shen, Chun-Pu Huang, Wang-Tsung Huang

IEEE Trans Ultrason Ferroelectr Freq Control. 2005 Oct;52(10):1877-80.

PMID: 16382642

Abstract:

This study has investigated an improved surface acoustic wave (SAW) ammonia gas sensor based on L-glutamic acid hydrochloride. It presents an excellent reversibility, sensitivity, and repeatability to ammonia. The frequency shift versus ammonia concentration above 40 degrees C was a monotonic function, and the limit of detection of the sensor at 50 degrees C was 80 ppb.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP138158 L-Glutamic acid hydrochloride L-Glutamic acid hydrochloride 138-15-8 Price
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