Title of article :
The sensitivity to SO2 of the SAW gas sensor with triethanolamine modified with boric acid
Author/Authors :
Qin، نويسنده , , Shuji and Wu، نويسنده , , Zhongjie and Tang، نويسنده , , Zhongyue and Song، نويسنده , , Yilin and Zeng، نويسنده , , Fanzhong and Zhao، نويسنده , , Dong، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2000
Abstract :
The sensitivity to SO2 of the SAW gas sensor coated with triethanolamine (TEA) modified with boric acid (H3BO3) (TEA and H3BO3 were mixed with a mole ratio 3:1) has been investigated. A better stability of the modified TEA film compared with that of TEA film was observed. Both the steady response Δf and the transient response (Δf/Δt)max varied linearly with the concentration of SO2 (0.5–8 ppm). Suitable sensitivity, fast response, good recovery, and reproducibility were found for the SAW SO2 sensor. The effect of H3BO3 on the sensitivity to SO2 of the SAW gas sensor is discussed.
Keywords :
TEA with H3BO3 , SAW gas sensor , Sensitivity to SO2
Journal title :
Sensors and Actuators B: Chemical
Journal title :
Sensors and Actuators B: Chemical
